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1. State employment centers in Russia: Assessment by service recipients

Author

Korzhova Olga, Stuken Tatiana, and Lapina Tatiana

Subjects
unemployment, public employment services, employment centers, service recipients, russia, Production management. Operations management, TS155-194, Personnel management. Employment management, HF5549-5549.5
Abstract

Background: Many countries spend up to 1% of GDP on implementing employment policies and assisting unemployed citizens, so it is important to assess the effectiveness of spending these funds. One of the Russian federal projects focuses on increasing the level of service recipients' satisfaction. The target indicator is 90.0% of satisfied recipients by the end of 2024. Purpose: This study aims to analyze the state of employment policy implementation in Russia. Study design/methodology/approach: The information base of the study is data of two questionnaire surveys of registered unemployed conducted in 2020-2021. In 2020, 4,800 unemployed people were interviewed in order to assess their satisfaction with the services received at the employment center. In 2021, 1,000 people from this number were re-interviewed in order to assess usefulness of the provided services. The survey evaluated several parameters, which influence the recipient's satisfaction with provided state employment services. Descriptive statistics methods were used to analyze the data. Finding/conclusions: The results show that over the past 3 years, respondents have noted positive changes in the work of state employment centers - expanding opportunities to receive services via the Internet, reducing queues in employment centers, increasing the availability of information about services. Also, the respondents rate usefulness of the received services for future quite highly employment. At the same time, low speed of service delivery, a large list of necessary documents, and insufficient customer orientation of employment centers staff are still being zones for development and improvement. Limitations/future research: The limitations of the study include a small number of existing studies on this problem, as well as the sample size. In further research, it is advisable to increase the number of unemployed interviewed in order to obtain more accurate and objective assessments of satisfaction with the services provided in employment centers.

Published
2022
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2. Management decisions at industrial enterprises of the Omsk region: digital context

Author

T. A. Lapina, T. Yu. Stuken, and O. S. Korzhova

Subjects
digitalization, industrial enterprise, barriers to digitalization, decision-making, Home economics, TX1-1110, Economics as a science, HB71-74
Abstract

The article is devoted to the description of the results of the study of the state of adoption and implementation of decisions on digitalization at industrial enterprises of the Omsk region. Each organization independently decides on the introduction of digital technologies, which is due to the influence of many factors, but studying the state of the use of digital technologies at the regional level will reveal regional features and assess regional trends in decision-making on digitalization. The methodological basis of the study was a systematic approach, which made it possible to identify the elements of the decision-making system on digitalization, as well as the relationship between them. The source of information was the opinions of experts, which were 92 top managers and IT specialists of industrial enterprises operating in the Omsk region. A questionnaire survey was used to collect information. As a result of the study, the main subjects of decision-making on digitalization, the main directions of digitalization of industrial enterprises, and barriers to digitalization were identified. It is concluded that, although industrial enterprises are involved in digitalization, its speed is rather slow due to the presence of significant barriers, one of which is the underdevelopment of digital competencies of personnel.

Published
2023
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3. Evaluating the effectiveness of employment assistance measures: Case of Russian state employment centers

Author

Stuken Tatiana and Korzhova Olga

Subjects
active labor market policies, state employment centers, Production management. Operations management, TS155-194, Personnel management. Employment management, HF5549-5549.5
Abstract

Russia is currently implementing the national project "Labor productivity and employment support", which is a set of measures aimed at developing employment infrastructure and introducing organizational and technological innovations to support employment, including standard solutions aimed at improving the efficiency of state employment centers. This project defines the strategic directions of state regulation of the Russian labor market. This article deals with the issues of the population's demand for the services of employment centers, including not only registering as unemployed but also receiving public services to assist in finding a suitable job, vocational training, psychological support, etc. The study is based on the Russian labor force survey and microdata of employment centers for 2019 (more than 24,000 observations). Based on the data from the labor force survey, conclusions are drawn about the demand for the state employment centers' services among various groups of the population and about typical combinations of applying to the employment service with other job search channels. The analysis of regional microdata made it possible to evaluate the performance of employment centers based on information about the socio-demographic characteristics of the unemployed, the duration of the unemployment status, the fact of receiving benefits, the services received and the reasons for de-registration. Based on the results of the analysis, conclusions are made about the ways to improve the work of the state employment centers.

Published
2020
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4. Features of digitalization of Russian regions

Author

Stuken Tatiana, Lapina Tatiana, and Korzhova Olga

Subjects
digitalization, labor productivity, russia, regions, Environmental sciences, GE1-350
Abstract

Based on the materials of the Rosstat Monitoring of the Development of the Information Society in the Russian Federation for the period 2011-2020, the article analyzes the indicators characterizing the development of information and communication technologies. The purpose of the study is to assess the dynamics of business digitalization in Russian regions and digital divides. The main method of analysis is descriptive statistics. Based on the study of the indicators dynamics, the authors identified leading and outsider regions for various indicators of digitalization and built consolidated ratings of regions digitalization for 2011 and 2020. The study assessed the stability/mobility of the list of leading and outsider regions for the period under review, and considered the concentration of inequality and the relationship between business digitalization and the level of labor productivity in the region. Based on the results of the study, there was concluded that the mobility of the group of regions-leaders of digitalization is higher than those of the regions-outsiders. There is a fairly high concentration of low digitalization indicators in outsider regions, which, however, is stable over time. There is no significant relationship between the indicators of business digitalization and the level of labor productivity in the region, which to a certain extent confirms the productivity paradox known in the economic literature. On the other hand, the accelerated development of digitalization in regions with low levels of productivity and labor can be seen as an investment in the development of the region and in increasing labor productivity.

Published
2023
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5. Strategic personnel management: Context of retirement age reform in Russia

Author

Stuken Tatiana and Korzhova Olga

Subjects
personnel management, ageism, older workers, Production management. Operations management, TS155-194, Personnel management. Employment management, HF5549-5549.5
Abstract

Since January 2019, retirement age in the Russian Federation will be gradually raised. Over the next ten years, the retirement age will be raised by five years to 60 years for women and 65 years for men. The Russian labor market is characterized by a fairly high level of ageism, manifested in the reluctance of employers to hire people older than 40-45 years, to train and promote workers of pre-retirement age. The decrease in the number of young generations and the increase in the proportion of older people actualize the tasks of working with aged personnel. Given these circumstances, organizations will respond to external challenges, adapting their personnel policies to new realities. The aim of this work is to identify the willingness of organizations to employ older workers in terms of pension reform in Russia, and determine how to change HR practices in these conditions. The paper consists of two parts. In the first part, authors analyze the trends associated with the increasing share of older generations on the Russian labor market and the qualitative characteristics of this group of workers. The information base is the Russian Federal State Statistics Service microdata (labor force survey) and the Russian Longitudinal Monitoring Survey. Based on this, there are made conclusions about the segments of employment of pre-retirement age workers (50 years for women and 55 years for men) in the labor market and their competitiveness. The second part of the paper presents results of expert survey of heads of HR-activities of 38 organizations of a large Russian city on the need and opportunities to expand the use of the labor of pre-retirement age workers, including the transformation of personnel management technologies to new realities:-possibility and conditions of using attractive for older workers working hours;-willingness of employers to participate in the training of personnel of pre-retirement age and conditions of investment in their human capital;-changes in the practices of recruitment, adaptation and release of personnel, taking into account changes in the Russian legislation. The main results of the study: organizations operating in highly competitive markets and facing a shortage of personnel, demonstrate a willingness to expand the use of older workers' labor and adapt the existing HR practices to them.However, most employers are not yet ready to change their personnel practices and adapt them to the increase in the older labor force in the labor market. To support older workers in the labor market there is required the elaboration of state programs for the adaptation of employees of pre-retirement age in the labor market.

Published
2019

7. Internal training of personnel in Russia and Belarus: The content and effectiveness

Author

Stuken Tatiana and Burtseva Olga

Subjects
human capital, internal training of personnel, Production management. Operations management, TS155-194, Personnel management. Employment management, HF5549-5549.5
Abstract

The report presents the results of internal training analysis, conducted in 2015 and based on materials of the survey of executives and employees of industrial enterprises in Russian Federation and the Republic of Belarus. The main results of the study: 1. The characteristics of the internal training organization on the contents of the formed skills and the degree of their specificity for different groups of employees were obtained. In both countries the training programs are primarily focused on the formation of professional skills. Much less attention is paid to development of cognitive and social competencies, which are relevant for executives and specialists. Most of the formed skills are universal. The degree of specificity of skills is maximum for workers and minimal for executives, while the prevalence of specific programs in Belarus is generally higher. 2. The motives for participation of personnel in internal training were identified. The main motives of Russian workers are increase of competitiveness and development, while Belarusian workers are more focused on continued employment. Continued employment is more typical for employees receiving specific training. The prevalence of the motive of increasing the competitiveness in the labor market increases considerably with the growth of universality of the obtained competences. 3. The effectiveness of internal training through the use of subjective evaluations of employees and employers was evaluated. The efficiency of competences formation depends on the size of the organization, its stage of life cycle, focusing on the achievement of strategic goals in the learning process and the decision makers about the employee training. 4. Belarusian employers more often note the non-obvious effect of training and dismissal of the trained employees as a risk of investments in human capital.

Published
2017

8. Training motivation of young workers in the workplace

Author

Stuken Tatiana and Lapina Tatiana

Subjects
additional professional training, motivation, labour market, human capital, young workers, Business, HF5001-6182, Finance, HG1-9999
Abstract

Thus, in modern conditions young workers are intensively trained on the APT programs. This need occurs relatively more often in the sphere of material production. Employees can learn at their own expense on positions that do not correspond with the previously obtained education, acquiring competencies that provide them with an opportunity to work on more attractive terms. If the training is connected with their current profession, then the probability of the funding by the employer increases. The relationship between the volumes of APT and characteristics of the labor market and the market of educational services, as well as the characteristics of the trained young workers suggest that the volume of additional training of the youth is not largely related to the lack of specific competences. The predominant motive of workers is their desire for various reasons to change the profession itself. Thus, the main cause of education is not the amount of the shortfall competencies, but the inconsistency of their structure, the gap between the competences and the demands of the labour market and employee. The movement in the direction of solving this problem requires more attention to product policy of the educational organizations, the flexibility of educational programs, inter-program mobility of students during the training and improvement of criteria for the evaluation of educational organizations by society. In addition, the behavior of enterprises, marking the low-skilled young workers and not actively solving this problem requires further study.

Published
2015

9. Nonfreeness of some algebras of hermitian modular forms

Author

Stuken, Ekaterina

Subjects
Mathematics - Number Theory, FOS: Mathematics, Number Theory (math.NT)
Abstract

We study the algebras of hermitian automorphic forms for the lattice $L_n=diag(1,1,\ldots,1,-1)$ and for the field $K=\mathbb{Q}(\sqrt{-d})$ such that $p=2$ is unramified and the ring of integers $\mathcal{O}_K$ is a p.i.d. We prove that for $d>7$ these algebras can't be free. When $d=7$ and $d=3$ we give an estimate for the dimension of the symmetric spaces for which these algebras might be free. We also compare our results with the known results for $d=3$.

Published
2022

10. Differentiating wages and compensation on Russian labor market: gender aspect

Author

Tatiana Yurevna Stuken and Tat'Jana Aleksandrovna Lapina

Subjects
Economics as a science, HB71-74, Finance, HG1-9999
Abstract

The paper is devoted to problems of differentiating factors of wages in Russian economy and their perception by working people. Based on the analysis of empiric data it was found that factor effects are gender asymmetries. During market transformations the significance of factors determinating the level of men and women wages has changed, and their subjective perception of these groups has transformed, too.

Published
2005

11. The cylindrospermopsin gene cluster of Aphanizomenon sp. strain 10E6: organization and recombination

Author

Stuken, Anke and Jakobsen, Kjetill S.

Subjects
Cyanobacteria -- Physiological aspects, Cyanobacteria -- Genetic aspects, Cyanobacteria -- Research, Genetic recombination -- Research, Bacterial toxins -- Physiological aspects, Bacterial toxins -- Genetic aspects, Bacterial toxins -- Research, Biological sciences
Abstract

Cylindrospermopsin (CYN), a potent hepatoxin, occurs in freshwaters worldwide. Several cyanobacterial species produce the toxin, but the producing species vary between geographical regions. Aphanizomenon flos-aquae, a common algae species in temperate fresh and brackish waters, is one of the three well-documented CYN producers in European waters. So far, no genetic information on the CYN genes of this species has been available. Here, we describe the complete CYN gene cluster, including flanking regions from the German Aphanizomenon sp. strain 10E6 using a full genome sequencing approach by 454 pyrosequencing and bioinformatic identification of the gene cluster. In addition, we have sequenced a ~7 kb fragment covering the genes cyrC (partially), cyrA and cyrB (partially) of the same gene cluster in the CYN-producing Aphanizomenon sp. strains 10E9 and 22D11. Comparisons with the orthologous gene clusters of the Australian Cylindrospermopsis raciborskii strains AWT205 and CS505 and the partial gene cluster of the Israeli Aphanizomenon ovalisporum strain ILC-146 revealed a high gene sequence similarity, but also extensive rearrangements of gene order. The high sequence similarity (generally higher than that of 16S rRNA gene fragments from the same strains), atypical GCcontent and signs of transposase activities support the suggestion that the CYN genes have been horizontally transferred. DOI 10.1099/mic.0.036988-0

Published
2010

12. Nonfreeness of algebras of symmetric Hilbert modular forms of even weight for $\mathbb{Q}(\sqrt{d})$ where d>5

Author

Stuken, Ekaterina

Subjects
Mathematics - Number Theory
Abstract

We study the algebras of symmetric Hilbert modular forms of even weight for $\mathbb{Q}(\sqrt{d})$, considering them as modular forms for the orthogonal group of the lattice with signature (2,2). Comparing the volume of the corresponding symmetric domain with the volume of the Jacobian of the generators of these algebras, we prove that for all d, except for d=2, 3, 5 these algebras can't be free.

Published
2017

13. Arithmetic volumes of indefinite ternary lattices with square free discriminant

Author

Stuken, Ekaterina

Subjects
Mathematics - Number Theory, FOS: Mathematics, Number Theory (math.NT)
Abstract

The main purpose of this paper is to give an explicit formula for the volumes of indefinite ternary lattices with square free discriminant. We also consider several examples of lattices, for which the fundamental domain is well-known and make sure the results obtained by our computation coincide with the known ones.

Published
2016

14. Central Pb+Pb collisions at 158 A GeV/c studied by π−π− interferometry

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Boesing, Christian, Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, M.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Morrison, Douglas R.O., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Research unit Nuclear & Hadron Physics

Subjects
Particle physics, Physics and Astronomy (miscellaneous), Gaussian, FOS: Physical sciences, HEAVY-ION COLLISIONS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), symbols.namesake, TRACKING, Pion, SYSTEMS, Invariant (mathematics), Engineering (miscellaneous), MULTISTEP AVALANCHE CHAMBERS, PION INTERFEROMETRY, Physics, Resolution (electron density), Function (mathematics), 2-PION CORRELATIONS, PERFORMANCE, READOUT, Exponential function, Interferometry, Cross term, symbols, PB+PB COLLISIONS, Particle Physics - Experiment
Abstract

Two-particle correlations have been measured for identified negative pions from central 158 AGeV Pb+Pb collisions and fitted radii of about 7 fm in all dimensions have been obtained. A multi-dimensional study of the radii as a function of kT is presented, including a full correction for the resolution effects of the apparatus. The cross term Rout-long of the standard fit in the Longitudinally CoMoving System (LCMS) and the vl parameter of the generalised Yano-Koonin fit are compatible with 0, suggesting that the source undergoes a boost invariant expansion. The shapes of the correlation functions in Qinv and Qspace have been analyzed in detail. They are not Gaussian but better represented by exponentials. As a consequence, fitting Gaussians to these correlation functions may produce different radii depending on the acceptance of the experimental setup used for the measurement., 13 pages including 10 figures

Published
2000

15. Direct Photon Production in 158 A GeV $^{208}Pb+^{208}Pb$ collisions

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Areev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Boesing, Christian, Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Morrison, Douglas R.O., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sood, G., Srensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract

A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield or upper limit of direct photons as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c is presented. A significant direct photon excess is observed at p_T > 1.5 GeV/c in central collisions. The results are compared to proton-induced results and to theoretical predictions. Implications for the dynamics of high-energy heavy-ion collisions are discussed. A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield or upper limit of direct photons as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c is presented. A significant direct photon excess is observed at p_T > 1.5 GeV/c in central collisions. The results are compared to proton-induced results and to theoretical predictions. Implications for the dynamics of high-energy heavy-ion collisions are discussed.

Published
2001

16. Scaling of particle and transverse energy production in $^{208}$Pb+$^{208}$Pb collisions at 158 A.GeV

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabache, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bohne, E. M., Borocz, Z. K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta-Majumdar, M. R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechosfsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Mora, M. J., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Cvd Pijll, E., Nv. Eijndhovern, Jv Nieuwenhuizen, G., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2001

17. Localized charged-neutral fluctuations in 158A GeV Pb+Pb collisions

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dubey, A. K., Dutt, S., Majumdar, M. R. D., Chenawi, K. E., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mgebrichvili, G., Miake, Y., Mir, M. D. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Mora, M. J., Morrison, D., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., Uv. Poblotzki, Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Cvd Pijll, E., Nv. Eijndhoven, Jv Nieuwenhuizen, G., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2001

18. Multiplicity distributions and charged-neutral fluctuations

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounai, B., Bernier, T., Bhalia, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Bucher, D., Buijs, A., Buis, E. J., Busching, H., Carlen, L., Chalyshev, V., Chenawi, K. E., Cherbatchev, R., Chujo, T., Clausse, A., Das, A. C., Decowski, M. P., Djjordjadze, V., Donni, P., Doubovik, I., Dubey, A. K., Dutta-Majumdar, M. R., Eliseev, S., Enosawa, K., Feldmann, H., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kumar, V., Kurata, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Mahapatra, D. P., Manko, V., Martin, M., Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nishimura, S., Nomokov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Purschke, M. L., Raeven, B., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Rubio, J. M., Sambyal, S. S., Sato, R., Sato, S., Schlagheck, H., Schmidt, H. R., Shabratova, G., Sibiriak, I., Siemiarcuk, T., Sinha, B. C., Slavine, N., Soderstorm, K., Solomey, N., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tavetkov, A., Twenhofel, C., Tykarski, L., Urbahn, J., Eijndhoven, N. V., Heeringen, W. H. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Vos, M. A., Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2000

19. Three-pion interferometry results from central Pb plus Pb collisions at 158A GeV/c

Author

Aggarwal, M M, Agnihotri, A, Ahammed, Z, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Barlag, C, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, VS, Blume, C, Bock, R, Bohne, E M, Borocz, Z, Bucher, D, Buijs, A, Busching, H, Carlen, L, Chalyshev, V, Chattopadhyay, S, Cherbatchev, R, Chujo, T, Claussen, A, Das, A C, Decowski, M P, Delagrange, H, Djordjadze, V, Donni, P, Doubovik, I, Dutt, S, Majumdar, M R D, El Chenawi, K, Eliseev, S, Enosawa, K, Foka, P, Fokin, S, Ganti, M S, Garpman, S, Gavrishchuk, O, Geurts, F J M, Ghosh, T K, Glasow, R, Gupta, S K, Guskov, B, Gustafsson, H.A., Gutbrod, H H, Higuchi, R, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Kampert, K H, Karadjev, K, Karpio, K, Kato, S, Kees, S, Klein-Bosing, C, Knoche, S, Kolb, B W, Kosarev, I, Koutcheryaev, I, Krumpel, T, Kugler, A, Kulinich, P, Kurata, M, Kurita, K, Kuzmin, N, Langbein, I, Lebedev, A, Lee, Y Y, Lohner, H, Luquin, L, Mahapatra, D P, Manko, V, Martin, M, Martinez, G, Maximov, A, Mgebrichvili, G, Miake, Y, Mir, M F, Mishra, G C, Miyamoto, Y, Mohanty, B, Mora, M J, Morrison, D, Mukhopadhyay, D S, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Neumaier, S, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Obenshain, F E, Oskarsson, A, Otterlund, I, Pachr, M, Pavliouk, S, Peitzmann, T, Petracek, V, Pinganaud, W, Plasil, F, von Poblotzki, U, Purschke, M L, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, V S, Rao, N K, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Roy, C, Rubio, J M, Sako, H, Sambyal, SS, Santo, R, Sato, S, Schlagheck, H, Schutz, Y, Shabratova, G, Shah, T H, Sibiriak, I, Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Soderstrom, K, Solomey, N, Sorensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stuken, D, Sumbera, M, Svensson, T, Trivedi, M D, Tsvetkov, A., Tykarski, L, Urbahn, J, van der Pijll, E C, van Eijndhoven, N, van Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopianov, A, Voros, S, Wyslouch, B, Yagi, K, Yokota, Y, Young, GR, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics

Subjects
MODEL, TRACKING, MULTISTEP AVALANCHE CHAMBER, HEAVY-ION COLLISIONS, PERFORMANCE, Nuclear Experiment, PB+PB COLLISIONS, 3-PION CORRELATIONS
Abstract

Three-particle correlations have been measured for identified pi(-) from central 158A GeV Pb + Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source.

Published
2000

20. Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bohne, E.M., Borocz, Z.K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mehdiyev, Rashid R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.J., Morrison, Douglas R.O., Mukhopadhyay, D.S., Myalkovski, V., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M.L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., Young, G.R., KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics

Subjects
Physics and Astronomy (miscellaneous), Nuclear Theory, FOS: Physical sciences, HEAVY-ION COLLISIONS, Nuclear physics, TARGETS, DISTRIBUTIONS, Nuclear Physics - Experiment, Physics::Chemical Physics, Nuclear Experiment (nucl-ex), Nuclear Experiment, Engineering (miscellaneous), Scaling, Physics, Range (particle radiation), PLASMA, NUCLEUS-NUCLEUS COLLISIONS, HADRONS, MULTIPLICITY, Charged particle, MOMENTUM, MODEL, Pseudorapidity, ULTRARELATIVISTIC ENERGIES, Production (computer science), High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Impact parameter, Nucleon, Energy (signal processing)
Abstract

Transverse energy, charged particle pseudorapidity distributions and photon transverse momentum spectra have been studied as a function of the number of participants (N_{part}) and the number of binary nucleon-nucleon collisions (N_{coll}) in 158 A GeV Pb+Pb collisions over a wide impact parameter range. A scaling of the transverse energy pseudorapidity density at midrapidity as N_{part}^{1.08 \pm 0.06} and N_{coll}^{0.83 \pm 0.05} is observed. For the charged particle pseudorapidity density at midrapidity we find a scaling as N_{part}^{1.07 \pm 0.04} and N_{coll}^{0.82 \pm 0.03}. This faster than linear scaling with N_{part} indicates a violation of the naive Wounded Nucleon Model., 13 pages, 16 figures, submitted to European Physical Journal C (revised results for scaling exponents)

Published
2000

21. Three-pion interferometry results from central Pb + Pb collisions at 158 A GeV/c

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Naya, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
Physics
Published
2000

22. Three-pion interferometry results from central Pb+Pb collisions at 158A GeV/c

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2000

23. Three-Pion Interferometry Results from Central Pb+Pb Collisions at 158 A GeV/c

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract

Three-particle correlations have been measured for identified negative pions from central 158 A GeV Pb+Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source. Three-particle correlations have been measured for identified negative pions from central 158 A GeV Pb+Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source.

Published
2000

24. Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., Poblotzki, U.v., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract

A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation. A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation.

Published
2000

25. $\Delta^{++}$ production in 158 A GeV $^{208}$Pb+$^{208}$Pb interactions at the CERN SPS

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2000

26. Observation of direct photons in central 158A GeV $^{208}$Pb+$^{208}$Pb collisions

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2000

27. Central Pb+Pb collisions at 158 A GeV/c studied by $\pi^-\pi^-$ interferometry

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
2000

28. Freeze-out parameters in central 158A (GeVPb)-Pb-208+Pbcollisions

Author

Aggarwal, M M, Agnihotri, A, Ahammed, Z, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Baldine, A, Barabach, L, Barlag, C, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, V S, Blume, C, Bock, R, Bohne, E M, Borocz, Z K, Bucher, D, Buijs, A, Busching, H, Carlen, L, Chalyshev, V, Chattopadhyay, S, Cherbatchev, R, Chujo, T, Claussen, A, Das, A C, Decowski, M P, Delagrange, H, Djordjadze, V, Donni, P, Doubovik, I, Dutt, S, Majumdar, M R D, El Chenawi, K, Eliseev, S, Enosawa, K, Foka, P, Fokin, S, Frolov, V, Ganti, M S, Garpman, S, Gavrishchuk, O, Geurts, F J M, Ghosh, T K, Glasow, R, Gupta, S K, Guskov, B, Gustafsson, H.A., Gutbrod, H H, Higuchi, R, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Kampert, K H, Karadjev, K, Karpio, K, Kato, S, Kees, S, Kim, H, Kolb, B W, Kosarev, I, Koutcheryaev, I, Krumpel, T, Kugler, A, Kulinich, P, Kurata, M, Kurita, K, Kuzmin, N, Langbein, I, Lebedev, A, Lee, YY, Lohner, H, Luquin, L, Mahapatra, D P, Manko, V, Martin, M, Martinez, G, Maximov, A, Mehdiyev, R, Mgebrichvili, G, Miake, Y, Mikhalev, D, Mir, M F, Mishra, G C, Miyamoto, Y, Morrison, D, Mukhopadhyay, D S, Myalkovski, V, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Neumaier, S, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Obenshain, F E, Oskarsson, A, Otterlund, I, Pachr, M, Parfenov, A, Pavliouk, S, Peitzmann, T, Petracek, V, Plasil, F, Pinganaud, W, Purschke, M L, Raeven, B, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, V S, Rao, N K, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Roy, C, Rubio, J M, Sako, H, Sambyal, S S, Santo, R, Sato, S, Schlagheck, H, Schutz, Y, Shabratova, G, Shah, T H, Sibiriak, I, Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Soderstrom, K, Solomey, N, Sorensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stuken, D, Sumbera, M, Svensson, T, Trivedi, M D, Tsvetkov, A., Tykarski, L, Urbahn, J, von der Pijll, E C, von Eijndhoven, N, von Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopianov, A, Voros, S, Wyslouch, B, Yagi, K, Yokota, Y, Young, G R, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics

Subjects
Nuclear Theory, NUCLEAR COLLISIONS, EXPANSION, HEAVY-ION COLLISIONS, Nuclear Experiment
Abstract

Neutral pion production in central 158A GeV Pb-208 + Pb-208 collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The pi(0) transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow one to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out.

Published
1999

29. Search for disoriented chiral condensates in 158.A GeV Pb+Pb collisions

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
1999

30. Freeze-Out Parameters in Central 158 AGeV $^{208}Pb$ + $^{208}Pb$ Collisions

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z.K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Morrison, D., Mukhopadhyay, D.S., Myalkovski, V., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M.L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., v.d.Pijll, E.C., v.Eijndhoven, N., v.Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
Nuclear Theory, High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract

Neutral pion production in central 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. The pi0 transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out. Neutral pion production in central 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. The pi0 transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out.

Published
1999

31. Freeze-out parameters in central 158 A GeV Pb+Pb collisions

Author

Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Bucher, D., Buijs, A., Buis, E. J., Borocz, Z., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M. R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrischchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, G., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, Md F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, E. O., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silmermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C. V. D., Eijndhoven, N. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Vos, M. A., Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published
1999

32. Centrality dependence of neutral pion production in 158A GeV Pb-208+Pb-208 collisions

Author

Aggarwal, MM, Agnihotri, A, Ahammed, Z, Angelis, ALS, Antonenko, [No Value], Arefiev, [No Value], Astakhov, [No Value], Avdeitchikov, [No Value], Awes, TC, Baba, PVKS, Badyal, SK, Baldine, A, Barabach, L, Barlag, C, Bathe, S, Batiounia, B, Bernier, T, Bhalla, KB, Bhatia, VS, Blume, C, Bock, R, Bohne, EM, Borocz, ZK, Bucher, D, Buijs, A, Busching, H, Carlen, L, Chalyshev, [No Value], Chattopadhyay, S, Cherbatchev, R, Chujo, T, Claussen, A, Das, AC, Decowski, MP, Djordjadze, [No Value], Donni, P, Doubovik, [No Value], Majumdar, MRD, El Chenawi, K, Eliseev, S, Enosawa, K, Foka, P, Fokin, S, Frolov, [No Value], Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Gupta, SK, Guskov, B, Gustafsson, H.-A., Gutbrod, HH, Higuchi, R, Hrivnacova, [No Value], Ippolitov, M, Kalechofsky, H, Kamermans, R, Kampert, KH, Karadjev, K, Karpio, K, Kato, S, Kees, S, Kim, H, Kolb, BW, Kosarev, [No Value], Koutcheryaev, [No Value], Krumpel, T, Kugler, A, Kulinich, P, Kurata, M, Kurita, K, Kuzmin, N, Langbein, [No Value], Lebedev, A, Lee, YY, Lohner, H, Luquin, L, Mahapatra, DP, Manko, [No Value], Martin, M, Maximov, A, Mehdiyev, R, Mgebrichvili, G, Miake, Y, Mikhalev, D, Mishra, GC, Miyamoto, Y, Morrison, D, Mukhopadhyay, DS, Myalkovski, [No Value], Naef, H, Nandi, BK, Nayak, SK, Nayak, TK, Neumaier, S, Nianine, A, Nikitine, [No Value], Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Obenshain, FE, Oskarsson, A, Otterlund, [No Value], Pachr, M, Parfenov, A, Pavliouk, S, Pietzmann, T, Patracek, [No Value], Pinanaud, W, Plasil, F, Purschke, ML, Raeven, B, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, VS, Rao, NK, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, [No Value], Roy, C, Rubio, JM, Sako, H, Sambyal, SS, Santo, R, Sato, S, Schlagheck, H, Shabratova, G, Sibiriak, [No Value], Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Soderstrom, K, Solomey, N, Sorensen, SP, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stuken, D, Sumbera, M, Svensson, T, Trivedi, MD, Tsvetkov, A., Twenhofel, C, Tykarski, L, Urbahn, J, von Eijndhoven, N, von Nieuwenhuizen, GJ, Vinogradov, A, Viyogi, YP, Vodopianov, A, Voros, S, Wyslouch, B, Yagi, K, Yokota, Y, Young, GR, and KVI - Center for Advanced Radiation Technology

Subjects
HADRONIC COLLISIONS, MODEL, CHARGED-PARTICLES, ENERGIES, Nuclear Theory, MULTIPLICITY DEPENDENCE, DISTRIBUTIONS, NUCLEUS COLLISIONS, Nuclear Experiment, TRANSVERSE-MOMENTUM SPECTRA, P-NUCLEUS
Abstract

The production of neutral pions in 158A GeV Pb-208 + Pb-208 collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron (SPS). Transverse momentum spectra are studied for the range 0.3 less than or equal to m(T) - m(0) less than or equal to 4.0 GeV/c. The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30 participating nucleons. This is most naturally explained by assuming an equilibrated system. [S0031-9007(98)07532-2].

Published
1998

33. Directed Flow in 158 A GeV $^{208}Pb$ + $^{208}Pb$ Collisions

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Dzhordzhadze, V., Donni, P., Doubovik, I., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadzhev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Maximov, A., Mehdiyev, Rashid R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mishra, G.C., Miyamoto, Y., Morrison, Douglas R.O., Mukhopadhyay, D.S., Myalkovsky, V., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitin, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinanaud, W., Purschke, M.L., Raven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Shabratova, G., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavin, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Twenhofel, C., Tykarski, L., Urbahn, J., Van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
Nuclear Theory, Nuclear Physics - Experiment, Nuclear Experiment
Abstract

The directed flow of protons and positive pions have been studied in 158 A GeV Pb + Pb collisions. A directed flow analysis of the rapidity dependence of the average transverse momentum projected onto the reaction plane is presented for semi-central collisions with impact parameters of approximately 8 fm, where the flow effect is largest. The magnitude of the directed flow is found to be significantly smaller than observed at AGS energies and than RQMD model predictions. The directed flow of protons and positive pions have been studied in 158 A GeV Pb + Pb collisions. A directed flow analysis of the rapidity dependence of the average transverse momentum projected onto the reaction plane is presented for semi-central collisions with impact parameters of approximately 8 fm, where the flow effect is largest. The magnitude of the directed flow is found to be significantly smaller than observed at AGS energies and than RQMD model predictions. The directed flow of protons and positive pions have been studied in 158 A GeV Pb + Pb collisions. A directed flow analysis of the rapidity dependence of the average transverse momentum projected onto the reaction plane is presented for semi-central collisions with impact parameters of approximately 8 fm, where the flow effect is largest. The magnitude of the directed flow is found to be significantly smaller than observed at AGS energies and than RQMD model predictions.

Published
1998

34. Centrality Dependence of Neutral Pion Production in 158 A GeV $^{208}Pb +^{208}Pb$ Collisions

Author

Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z.K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Djordjadze, V., Donni, P., Doubovik, I., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mishra, G.C., Miyamoto, Y., Morrison, D., Mukhopadhyay, D.S., Myalkovski, V., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Pietzmann, T., Patracek, V., Pinanaud, W., Plasil, F., Purschke, M.L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Shabratova, G., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Twenhofel, C., Tykarski, L., Urbahn, J., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.

Subjects
Nuclear Theory, High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract

The production of neutral pions in 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. Transverse momentum spectra are studied for the range 0.3 GeV/c < mT-m0 < 4.0 GeV/c. The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30 participating nucleons which is most naturally explained by assuming an equilibrated system. The production of neutral pions in 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. Transverse momentum spectra are studied for the range 0.3 GeV/c < mT-m0 < 4.0 GeV/c. The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30 participating nucleons which is most naturally explained by assuming an equilibrated system. The production of neutral pions in 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. Transverse momentum spectra are studied for the range 0.3 GeV/c < mT-m0 < 4.0 GeV/c. The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30 participating nucleons which is most naturally explained by assuming an equilibrated system.

Published
1998

35. Soft photon production in central 200 GeV nucleon S-32+Au collisions

Author

Aggarwal, MM, Angelis, ALS, Antonenko, [No Value], Awes, TC, Badyal, SK, Barlag, C, Bhalla, KB, Bhatia, VS, Blume, C, Bock, D, Bohne, EM, Bucher, D, Buijs, A, Chattopadhyay, S, Claussen, A, Clewing, G, Das, AC, Devanand, [No Value], Donni, P, Durieux, E, Majumdar, MRD, Foka, P, Fokin, S, Ganti, MS, Garpman, S, Geurts, F, Ghosh, TK, Glasow, R, Gupta, SK, Gustafsson, H.A., Gutbrod, HH, Hartig, M, Holker, G, Ippolitov, M, Izycki, M, Kachroo, S, Kalechofsky, H, Kamermans, R, Kampert, KH, Karadjev, K, Kolb, BW, Kumar, [No Value], Langbein, [No Value], Langheinrich, J, Lebedev, A, Lohner, H, Lokanathan, S, Manko, [No Value], Martin, M, Mittra, IS, Mookerjee, S, Naef, H, Nayak, SK, Nikolaev, S, Nystrand, J, Obenshain, FE, Oskarsson, A, Otterlund, [No Value], Peitzmann, T, Plasil, F, Purschke, M, Raniwala, S, Rao, NK, Rosselet, L, Roters, B, Rubio, JM, Saini, S, Sambyal, SS, Santo, R, Siemiarczuk, T, Siemssen, R, Sinha, BC, Slegt, S, Soderstrom, K, Solomey, N, Sorensen, SP, Stefanek, G, Steinhaeuser, P, Stenlund, E, Ster, A, Stuken, D, Trivedi, MD, Twenhoefel, C, vanEijndhoven, N, vanHeeringen, E, Vinogradov, A, Viyogi, YP, Young, GR, and KVI - Center for Advanced Radiation Technology

Subjects
Nuclear Theory, High Energy Physics::Experiment, CALORIMETER, Nuclear Experiment
Abstract

Inclusive photons of low transverse momenta have been measured in 200 GeV/nucleon S-32+Au collisions at the CERN SPS. Data were taken in the WA93 experiment using a small acceptance BGO detector with longitudinal segmentation. The results are compared to WA80 measurements for the same system and results from hadron decay calculations, An excess of soft photons over the expectations from neutral meson decays is observed.

Published
1997

36. Limits on the production of direct photons in 200A GeV S-32+Au collisions

Author

Albrecht, R, Antonenko, [No Value], Awes, TC, Barlag, C, Berger, F, Bloomer, M, Blume, C, Bock, D, Bock, R, Bohne, EM, Bucher, D, Claesson, G, Claussen, A, Clewing, G, Debbe, R, Dragon, L, Dubovik, Y, Eklund, A, Fokin, S, Franz, A, Garpman, S, Glasow, R, Gustafsson, H.A., Gutbrod, HH, Hansen, O, Holker, G, Idh, J, Ippolitov, M, Jacobs, P, Kampert, KH, Karadjev, K, Kolb, BW, Lebedev, A, Löhner, Herbert, Lund, [No Value], Manko, [No Value], Moskowitz, B, Nikolaev, S, Nystrand, J, Obenshain, FE, Oskarsson, A, Otterlund, [No Value], Peitzmann, T, Plasil, F, Poskanzer, AM, Purschke, M, Ritter, HG, Roters, B, Saini, S, Santo, R, Schlagheck, H, Soderstrom, K, Sorensen, SP, Stankus, PW, Steffens, K, Steinhaeuser, P, Stenlund, E, Stuken, D, Vinogradov, A, Wegner, H, Young, GR, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics

Subjects
High Energy Physics::Experiment, NUCLEAR COLLISIONS, Nuclear Experiment
Abstract

A search for the production of direct photons in S + An collisions at 200A GeV has been carried out in the CERN-WA80 experiment. For central collisions the measured photon excess at each pr, averaged over the range 0.5 less than or equal to p(T) less than or equal to less than or equal to 2.5 GeV/c, corresponded to 5.0% of the total inclusive photon yield with a statistical error of sigma(stat) = 0.8% and a systematic error of sigma(syst) = 5.8%. Upper limits on the invariant yield for direct photon production at the 90% C.L. are presented. Possible implications for the dynamics of high-energy heavy-ion collisions are discussed.

Published
1996

37. 2-PROTON CORRELATIONS IN THE TARGET FRAGMENTATION REGION OF NUCLEAR COLLISIONS AT 200-A-GEV

Author

AWES, TC, BARLAG, C, BERGER, F, BLOOMER, MA, BLUME, C, BOCK, D, BOCK, R, BOHNE, EM, BUCHER, D, CLAUSSEN, A, CLEWING, G, DRAGON, L, EKLUND, A, GARPMAN, S, GLASOW, R, GUTBROD, HH, HOLKER, G, IDH, J, JACOBS, P, KAMPERT, KH, KOLB, BW, LOHNER, H, LUND, [No Value], OBENSHAIN, FE, OSKARSSON, A, OTTERLUND, [No Value], PEITZMANN, T, PLASIL, F, POSKANZER, AM, PURSCHKE, M, ROTERS, B, SAINI, S, SANTO, R, SCHMIDT, HR, SORENSEN, SP, STEFFENS, K, STEINHAEUSER, P, STENLUND, E, STUKEN, D, YOUNG, GR, and KVI - Center for Advanced Radiation Technology

Subjects
SINGLY CHARGED FRAGMENTS, Nuclear Theory, Nuclear Experiment
Abstract

Correlations between protons are studied in the target fragmentation region of reactions of protons and O-16 with C, Cu, Ag, Au and of S-32 With Al and Au at 200 A GeV. The emitted protons were measured with the Plastic Ball detector in the WA80 experiment at the CERN SPS. The comparison of the correlation function with calculations, assuming a spherical, gaussian shaped source with a lifetime tau = 0 fm/c, allows the extraction of radius parameters. The values are very close to those expected from the geometry of the target nuclei and increase with the target mass as proportional to A(Target)(1/3) . Even in proton induced reactions the whole target nucleus is involved. The dependence of the radii on centrality, polar angle theta(lab), and energy, and their relation to measured proton yields are presented.

Published
1995

38. Intermittency and Correlation in 200 GeV/nucleon S+S and S+Au Collisions

Author

Albrecht, R., Antonenko, A., Awes, T.C., Berger, F., Bloomer, M.A., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Fokin, S., Franz, A., Garpman, S., Glasow, R., Gustafsson, H.A., Gutbrod, H.H., Hartig, M., He, X., Holker, G., Idh, J., Ippolitov, M., Jacobs, P., Kampert, K.H., Karadjev, K., Kolb, B.W., Lebedev, A., Lohner, H., Lund, I., Manko, V., Nikolaev, S., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A.M., Purschke, M., Ritter, Hans G., Roters, B., Saini, S., Santo, R., Schmidt, H.R., Soderstrom, K., Sorensen, S.P., Steffens, K., Steinhauser, P., Stenlund, E., Stuken, D., Vinogradov, A., and Young, G.R.

Published
1994

39. EFFECTIVE SOURCE SIZES OF LOW RAPIDITY SOFT PARTICLE-EMISSION

Author

Thomas Peitzmann, Albrecht, R., Awes, T. C., Beckmann, P., Berger, F., Bloomer, M., Blume, C., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. A., Gutbrod, H. H., Holker, G., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Lohner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Plasil, F., Poskanzer, A. M., Purschke, M., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Sorensen, S. P., Steffens, K., Steinhaeuser, P., Stenlund, E., Stuken, D., Young, G. R., and KVI - Center for Advanced Radiation Technology

Subjects
TARGET FRAGMENTATION REGION, Nuclear Theory, NUCLEAR COLLISIONS, Nuclear Experiment
Abstract

Correlations of positive pions and protons measured with the Plastic Ball detector in ultrarelativistic nucleus-nucleus collisions are studied. Source parameters are extracted for various projectile-target combinations. While the proton source can be explained by geometry, the pion source shows more subtle effects, which may be related to a very large source component. A comparison with the RQMD model for 200 AGeV S-32 + Au reactions reveals discrepancies for the pion source.

Published
1994

40. SINGLE-PHOTON AND NEUTRAL MESON DATA FROM WA80

Author

Santo, R., Albrecht, R., Awes, T. C., Barlag, C., Berger, F., Bloomer, M., Blume, C., Bock, D., Bock, R., Bucher, D., Claesson, G., Clewing, G., Debbe, R., Dragon, L., Eklund, A., Fokin, S., Garpman, S., Glasow, R., Gustafsson, H. A., Gutbrod, H. H., Hansen, O., Holker, G., Idh, J., Ippolitov, M., Jacobs, P., Kampert, K. H., Karadjev, K., Kolb, B. W., Lebedev, A., Lohner, H., Lund, I., Manko, V., Moskowitz, B., Obenshain, F. E., Oskarsson, A., Otterlund, I., Thomas Peitzmann, Plasil, F., Poskanzer, A. M., Purschke, M., Roters, B., Saini, S., Schmidt, H. R., Soderstrom, K., Sorensen, S. P., Steffens, K., Steinhaeuser, P., Stenlund, E., Stuken, D., Vinogradov, A., Wegner, H., Young, G. R., and KVI - Center for Advanced Radiation Technology

Subjects
PP-COLLISIONS, PI-0, GEV/C, TRANSVERSE-MOMENTUM, DILEPTON EMISSION, INCLUSIVE ETA-PRODUCTION, MATTER, QUARK-GLUON PLASMA, HIGH-ENERGY PHOTONS
Published
1994

41. MULTIPLICITY AND PSEUDORAPIDITY DISTRIBUTIONS OF CHARGED-PARTICLES FROM S-32 INDUCED HEAVY-ION INTERACTIONS AT 200-A GEV

Author

ALBRECHT, R, AWES, TC, BAKTASH, C, BECKMANN, P, BERGER, F, BLOOMER, MA, BOCK, D, BOCK, R, CLAESSON, G, CLEWING, G, DRAGON, L, EKLUND, A, FERGUSON, R, FRANZ, A, GARPMAN, SIA, GLASOW, R, GUSTAFSSON, HA, GUTBROD, HH, HOLKER, G, IDH, J, JACOBS, P, KAMPERT, KH, KOLB, BW, LOHNER, H, LUND, [No Value], OBENSHAIN, FE, OSKARSSON, A, OTTERLUND, [No Value], PEITZMANN, T, PLASIL, F, POSKANZER, AM, PURSCHKE, ML, RITTER, HG, ROTERS, B, SAINI, S, SANTO, R, SCHMIDT, HR, SORENSEN, SP, STEINHAEUSER, P, STEFFENS, K, STENLUND, E, STUKEN, D, YOUNG, GR, and KVI - Center for Advanced Radiation Technology

Subjects
TRANSVERSE ENERGY, CERN, EXPERIMENT WA80, O-16, NUCLEUS COLLISIONS, FLUCTUATIONS, CALORIMETER, Nuclear Experiment, GEV/NUCLEON, EMULSION
Abstract

Multiplicity and pseudorapidity distributions have been measured for S-32 + Al, Cu, Ag and Au at 200 A GeV. The widths of the pseudorapidity distributions increase from central to peripheral collisions. The main contribution is assumed to come from the increasing fraction of charged particles stemming from the fragmentation of the target for peripheral collisions as compared to central collisions. On the average 170-180 charged particles per unit of pseudorapidity are attained for the most central S-32 + Au events at the maximum of the distribution. The target dependence of the yield of charged particles for central collisions is investigated. In the target rapidity region the yield is directly proportional to the target mass. The transverse energy per charged particle has been studied as a function of centrality and pseudorapidity. The experimental results are compared to the results from the Monte-Carlo model VENUS 3.11 which includes rescattering among secondaries. A comparison between different centrality triggers is made.

Published
1992

42. INTERMITTENCY IN S-32+S AND S-32+AU COLLISIONS AT THE CERN SPS

Author

Bloomer, M. A., Jacobs, P., Albrecht, R., Awes, T. C., Beckmann, P., Berger, F., Bock, D., Bock, R., Claesson, G., Clewing, G., Debbe, R., Dragon, L., Eklund, A., Ferguson, R. L., Fokin, S., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. A., Gutbrod, H. H., Hansen, O., Hartig, M., Holker, G., Idh, J., Ippolitov, M., Kampert, K. H., Karadjev, K., Kolb, B. W., Lebedev, A., Lohner, H., Lund, I., Manko, V., Moskowitz, B., Obenshain, F. E., Oskarsson, A., Otterlund, I., Thomas Peitzmann, Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Soderstrom, K., Sorensen, S. P., Steffens, K., Steinhauser, P., Stenlund, E., Stuken, D., Twyhues, A., Vinogradov, A., Young, G. R., and KVI - Center for Advanced Radiation Technology

Subjects
Physics::Instrumentation and Detectors, Nuclear Theory, PATTERNS, High Energy Physics::Experiment, FLUCTUATIONS, Nuclear Experiment, HIGH-ENERGY COLLISIONS
Abstract

Nonstatistical or "intermittent" fluctuations of charged particle multiplicities have been investigated at the CERN SPS with the WA80 multiplicity array for S-32+S and S-32+Au collisions of varying centrality. Within the phase space domain studied there is no evidence for intermittency in these collisions beyond that accounted for by FRITIOF filtered through a full detector simulation.

Published
1992

43. Intermittency in 200 GeV/nucleom S+S Collisions

Author

Jacobs, P., Bloomer, M.A., Albrecht, R., Awes, T.C., Beckmann, P., Berger, F., Bock, D., Bock, R., Claesson, G., Clewing, G., Debbe, R., Dragon, L., Eklund, A., Ferguson, R.L., Fokin, S., Franz, A., Garpman, S., Glasow, R., Gustafsson, H.A., Gutbrod, H.H., Hansen, O., Hartig, M., Holker, G., Idh, J., Ippolitov, M., Kampert, K.H., Karadjev, K., Kolb, B.W., Lebedev, A., Lohner, H., Lund, I., Manko, V., Moskowitz, B., Obenshain, F.E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A.M., Purschke, M., Ritter, Hans G., Roters, B., Saini, S., Santo, R., Schmidt, H.R., Soderstrom, K., Sorensen, S.P., Steffens, K., Steinhauser, P., Stenlund, E., Stuken, D., Twyhues, A., Vinogradov, A., and Young, G.R.

Published
1992

44. Intermittency in {sup 32}S+S and {sup 32}S+Au Collisions

Author

Bloomer, M.A., Jacobs, P., Awes, T.C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Clewing, G., Debbe, R., Dragon, L., Eklund, A., Ferguson, R.L., Fokin, S., Franz, A., Garpman, S., Glasow, R., Gustafsson, H.A., Gutbrod, H.H., Hansen, O., Hartig, M., Holker, G., Idh, J., Ippolitov, M., Kampert, K.H., Karadjev, K., Kolb, B.W., Lebedev, A., Lohner, H., Lund, I., Manko, V., Moskowitz, B., Obenshain, F.E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A.M., Purschke, M., Ritter, Hans G., Roters, B., Saini, S., Santo, R., Schmidt, H.R., Stuken, D., Twyhues, A., Vinogradov, A., and Young, G.R.

Published
1991

45. The aesthetics of absence: Rebuilding Ground Zero.

Author

Stuken, Marita

Subjects
*TERRORISM, *TERRORISTS, *INTERNATIONAL trade, *SEPTEMBER 11 Terrorist Attacks, 2001
Abstract

Examines the narratives and meanings that have been projected onto the space of Ground Zero in New York City since September 11, 2001. Investigations on the changing meanings attributed to the dust and footprints of the World Trade Center buildings; Implications of Ground Zero on nuclear obliteration; Symbolic center of the event and narrative that of the terrorist attack in lower Manhattan.

Published
2004
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46. Background-independent measurement of θ13 in Double Chooz

Author

Abe, Y., Dos Anjos, J. C., Barriere, J. C., Baussan, E., Bekman, I., Bergevin, M., Bezerra, T. J. C., Bezrukov, L., Blucher, E., Buck, C., Busenitz, J., Cabrera, A., Caden, E., Camilleri, L., Carr, R., Cerrada, M., Chang, P.-J., Chauveau, E., Chimenti, P., Collin, A. P., Conover, E., Conrad, J. M., Crespo-Anadon, J. I., Crum, K., Cucoanes, A., Damon, E., Dawson, J. V., Dietrich, D., Djurcic, Z., Dracos, M., Elnimr, M., Etenko, A., Fallot, M., Von Feilitzsch, F., Felde, J., Fernandes, S. M., Fischer, V., Franco, D., Franke, M., Furuta, H., Gil-Botella, I., Giot, L., Göger-Neff, M., Gonzalez, L. F. G., Goodenough, L., Goodman, M. C., Grant, C., Haag, N., Hara, T., Haser, J., Hofmann, M., Horton-Smith, G. A., Hourlier, A., Ishitsuka, M., Jochum, J., Jollet, C., Kaether, F., Kalousis, L. N., Kamyshkov, Y., Kaplan, D. M., Kawasaki, T., Kemp, E., De Kerret, H., Konno, T., Kryn, D., Kuze, M., Lachenmaier, T., Lane, C. E., Lasserre, T., Letourneau, A., Lhuillier, D., Lima Jr., H. P., Lindner, M., Lopez-Castano, J. M., LoSecco, J. M., Lubsandorzhiev, B. K., Lucht, S., Maeda, J., Mariani, C., Maricic, J., Martino, J., Matsubara, T., Mention, G., Meregaglia, A., Miletic, T., Milincic, R., Minotti, A., Nagasaka, Y., Nakajima, K., Nikitenko, Y., Novella, P., Obolensky, M., Oberauer, L., Onillon, A., Osborn, A., Palomares, C., Pepe, I. M., Perasso, S., Pfahler, P., Porta, A., Pronost, G., Reichenbacher, J., Reinhold, B., Röhling, M., Roncin, R., Roth, S., Rybolt, B., Sakamoto, Y., Santorelli, R., Sato, F., Schilithz, A. C., Schönert, S., Schoppmann, S., Shaevitz, M. H., Sharankova, R., Shimojima, S., Sibille, V., Sinev, V., Skorokhvatov, M., Smith, E., Spitz, J., Stahl, A., Stancu, I., Stokes, L. F. F., Strait, M., Stüken, A., Suekane, F., Sukhotin, S., Sumiyoshi, T., Sun, Y., Svoboda, R., Terao, K., Tonazzo, A., Thi, H. H. Trinh, Valdiviesso, G., Vassilopoulos, N., Veyssiere, C., Vivier, M., Wagner, S., Watanabe, H., Wiebusch, C., Winslow, L., Wurm, M., Yang, G., Yermia, F., Zimmer, V., Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), APC - Neutrinos, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Double-CHOOZ, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Abe, Y, Dos Anjos, J, Barriere, J, Baussan, E, Bekman, I, Bergevin, M, Bezerra, T, Bezrukov, L, Blucher, E, Buck, C, Busenitz, J, Cabrera, A, Caden, E, Camilleri, L, Carr, R, Cerrada, M, Chang, P, Chauveau, E, Chimenti, P, Collin, A, Conover, E, Conrad, J, Crespo-Anadon, J, Crum, K, Cucoanes, A, Damon, E, Dawson, J, Dietrich, D, Djurcic, Z, Dracos, M, Elnimr, M, Etenko, A, Fallot, M, Von Feilitzsch, F, Felde, J, Fernandes, S, Fischer, V, Franco, D, Franke, M, Furuta, H, Gil-Botella, I, Giot, L, Goger-Neff, M, Gonzalez, L, Goodenough, L, Goodman, M, Grant, C, Haag, N, Hara, T, Haser, J, Hofmann, M, Horton-Smith, G, Hourlier, A, Ishitsuka, M, Jochum, J, Jollet, C, Kaether, F, Kalousis, L, Kamyshkov, Y, Kaplan, D, Kawasaki, T, Kemp, E, De Kerret, H, Konno, T, Kryn, D, Kuze, M, Lachenmaier, T, Lane, C, Lasserre, T, Letourneau, A, Lhuillier, D, Lima, H, Lindner, M, Lopez-Castano, J, Losecco, J, Lubsandorzhiev, B, Lucht, S, Maeda, J, Mariani, C, Maricic, J, Martino, J, Matsubara, T, Mention, G, Meregaglia, A, Miletic, T, Milincic, R, Minotti, A, Nagasaka, Y, Nakajima, K, Nikitenko, Y, Novella, P, Obolensky, M, Oberauer, L, Onillon, A, Osborn, A, Palomares, C, Pepe, I, Perasso, S, Pfahler, P, Porta, A, Pronost, G, Reichenbacher, J, Reinhold, B, Rohling, M, Roncin, R, Roth, S, Rybolt, B, Sakamoto, Y, Santorelli, R, Sato, F, Schilithz, A, Schonert, S, Schoppmann, S, Shaevitz, M, Sharankova, R, Shimojima, S, Sibille, V, Sinev, V, Skorokhvatov, M, Smith, E, Spitz, J, Stahl, A, Stancu, I, Stokes, L, Strait, M, Stuken, A, Suekane, F, Sukhotin, S, Sumiyoshi, T, Sun, Y, Svoboda, R, Terao, K, Tonazzo, A, Trinh Thi, H, Valdiviesso, G, Vassilopoulos, N, Veyssiere, C, Vivier, M, Wagner, S, Watanabe, H, Wiebusch, C, Winslow, L, Wurm, M, Yang, G, Yermia, F, Zimmer, V, Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and Double Chooz Collaboration

Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], neutrino oscillation, neutrino mixing, High Energy Physics - Experiment
Abstract

Physics letters / B 735, 51-56 (2014). doi:10.1016/j.physletb.2014.04.045, Published by Elsevier, Amsterdam

Published
2014
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47. Genetic and morphologic characterization of four putative cylindrospermopsin producing species of the cyanobacterial genera Anabaena and Aphanizomenon

Author

Rebecca Campbell, Assaf Sukenik, Anke Stüken, Pawan K. Dadheech, Claudia Wiedner, Antonio Quesada, Stuken, Anke, Campbell, Rebecca J, Quesada, Antonio, Sukenik, Assaf, Dadheech, Pawan K, and Wiedner, Claudia

Subjects
Cyanobacteria, Ecology, biology, Phylogenetic tree, Anabaena, Cylindrospermopsis, CYN producers, Australia, Aquatic Science, CYN, biology.organism_classification, Aphanizomenon, phylogeny, Cylindrospermopsis raciborskii, chemistry.chemical_compound, morphotypes, taxonomy, chemistry, Polyphyly, Botany, cylindrospermopsin, Cylindrospermopsin, Ecology, Evolution, Behavior and Systematics
Abstract

Cylindrospermopsin (CYN) is a potent hepatotoxic alkaloid that has been detected in freshwater samples worldwide and is produced by a number of cyanobacterial species, mainly of the genera Cylindrospermopsis, Aphanizomenon and Anabaena. Cylindrospermopsis raciborskii is a morphologically distinctive species which forms a genetically well-defined cluster. In contrast, some species within Aphanizomenon and Anabaena are morphologically not clearly assignable to either genera and both genera are polyphyletic. In the Cylindrospermopsis cluster CYN producing and non-producing strains co-occur, but it is not known if CYN producing and non-producing strains are closely related in Anabaena and Aphanizomenon. Here we attempt to disentangle the phylogenetic relationships of four taxa of the genera Anabaena and Aphanizomenon, some of which are known as CYN producers. We have sequenced and phylogenetically analysed partial sequences of the 16S rRNA gene, cpcBA-IGS and rpoC1 from 31 cyanobacteria isolates of the genera Aphanizomenon and Anabaena and have documented morphotypic characteristics of new and recently isolated strains. Our results do not corroborate the separation of Aph. gracile and Aph. flos-aquae into separate species. In contrast, they support the distinction of Ana. bergii and Aph. ovalisporum into distinct taxa. Further, Ana. bergii is most likely not a CYN producing species. Refereed/Peer-reviewed

Published
2009

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