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403 results on '"Torelli, M."'

51. Passive galaxies in the early Universe: ALMA confirmation of z ∼ 3−5 candidates in the CANDELS GOODS-South field.

Author

Santini, P, Merlin, E, Fontana, A, Magnelli, B, Paris, D, Castellano, M, Grazian, A, Pentericci, L, Pilo, S, and Torelli, M

Subjects
GALAXIES, DWARF galaxies, STAR formation, STATISTICAL sampling, GALAXY formation, GALACTIC evolution
Abstract

The selection of red, passive galaxies in the early Universe is very challenging, especially beyond z ∼ 3, and it is crucial to constrain theoretical modelling of the processes responsible for their rapid assembly and abrupt shut-down of the star formation. We present here the analysis of ALMA archival observations of 26 out of the 30 galaxies in the deep CANDELS GOODS-South field that we identified as passive at z ∼ 3−5 by means of a careful and conservative SED fitting analysis. ALMA data are used to verify the potential contamination from red, dusty but star-forming sources that could enter the sample due to similar optical–near-IR colours. With the exception of a few marginal detections at <3σ, we could only infer upper limits, both on individual sources and on the stacks. We translated the ALMA continuum measurements into corresponding SFRs, using a variety of far-IR models. These SFRs are compared with those predicted by secondary star-forming solutions of the optical fits and with the expected position of the star formation main sequence. This analysis confirms the passive nature of nine candidates with high confidence and suggests that the classification is correct for at least half of the sample in a statistical sense. For the remaining sources the analysis remain inconclusive because available ALMA data are not deep enough, although the stacking results corroborate their passive nature. Despite the uncertainties, this work provides decisive support to the existence of passive galaxies beyond z ∼ 3. [ABSTRACT FROM AUTHOR]

Published
2019
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52. O PROCESSO DE REESTRUTURAÇÃO DA AVICULTURA NO MATO GROSSO DO SUL: A RELAÇÃO ENTRE AS EMPRESAS JBS E BRF E OS PRODUTORES INTEGRADOS.

Author

de Lima, Fábio and Torelli M. Faccin, Ana Carolina

Subjects
*POULTRY industry, *MUTUAL funds, *PRODUCTION increases, *POULTRY, *CHICKENS, *DECENTRALIZATION in government
Abstract

The objective of this article is characterize of process the agro-industrial restructuring of the poultry industry in south-central Mato Grosso do Sul, from the relations between JBS and BRF companies and integrated producers. The presence of these groups internationalized, has provoked a process of restructuring of the local poultry industry. For poultry farmers, it has been discussed a new production scale, known as "Dark House" system, requiring a high degree of investment. Thus, the actuation of these internationalized companies with BNDES investments can generate the concentration and centralization of chicken production, causing some producers automate and increase their production scales, making the best capitalized and may result in decrease in integrated poultry farmers dissatisfied with the new logic of actuation of these companies. [ABSTRACT FROM AUTHOR]

Published
2019
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53. pH-Driven Conformational Switching of Quinoxaline Cavitands in Polymer Matrices.

Author

Torelli, M., Domenichelli, I., Pedrini, A., Guagnini, F., Pinalli, R., Terenziani, F., Artoni, F., Brighenti, R., and Dalcanale, E.

Subjects
*PH effect, *QUINOXALINES, *SOLUTION (Chemistry)
Abstract

While pH-driven interconversion of tetraquinoxaline cavitands (QxCav) from vase to kite conformation has been extensively studied both in solution and at interfaces, cavitands behavior in solid matrices is still unexplored. Therefore, the synthesis of a new class of quinoxaline cavitand based copolymers is here reported; a soluble linear poly(butyl methacrylate) (PBMA) and an insoluble cross-linked polydimethylsiloxane (PDMS), ensuring a convenient incorporation of the switchable unit, were chosen as polymer matrices. Conformational studies, performed both in solution and at the solid state, confirmed the retention of vase ? kite switching behavior when moving from monomeric units to polymeric structures. [ABSTRACT FROM AUTHOR]

Published
2018
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58. Multicenter observational study on practices of blastocyst culture in Italy following modifications in IVF law

Author

Artini, P, De Santis, L, Parmegiani, L, Filicori, M, Ghamayou, S, Vigana, P, Guglielmino, A, Carletti, E, Volpes, A, Sammartano, F, Omes, C, Varetto, G, Battioli, A, Cantarelli, M, Torelli, M, Micara, Giulietta, Boninsegna, C, Scaruffi, P, Casciani, I, Scaravelli, G, Vigiliano, V, Tesoriere, G, Vacca, M, Miceli, A, Bologna, F, Levi Sette, P, Albani, E, Lagalla, C, Sciajno, R, Dal Canto, M, Coticchio, G, Sulpizio, P, Dusi, L, Trevisan, C, Barbaro, R, Bulletti, C, De Stefani, S, and Ciriminna, R.

Published
2013

59. Chasing passive galaxies in the early Universe: a critical analysis in CANDELS GOODS-South.

Author

Merlin, E., Fontana, A., Castellano, M., Santini, P., Torelli, M., Boutsia, K., Wang, T., Grazian, A., Pentericci, L., Schreiber, C., Ciesla, L., McLure, R., Derriere, S., Dunlop, J. S., and Elbaz, D.

Subjects
GALAXIES, ASTRONOMY, ASTRONOMICAL photometry, ASTRONOMICAL observations, SPECTRAL energy distribution
Abstract

We search for passive galaxies at z > 3 in the GOODS-South field, using different techniques based on photometric data, and paying attention to develop methods that are sensitive to objects that have become passive shortly before the epoch of observation. We use CANDELS HST catalogues, ultra-deep Ks data and new IRAC photometry, performing spectral energy distribution fitting using models with abruptly quenched star formation histories. We then single out galaxies which are best fitted by a passively evolving model, and having only low probability (<5 per cent) star-forming solutions. We verify the effects of including nebular lines emission, and we consider possible solutions at different redshifts. The number of selected sources dramatically depends on the models used in the spectral energy distribution (SED) fitting. Without including emission lines and with photometric redshifts fixed at the CANDELS estimate, we single out 30 candidates; the inclusion of nebular lines emission reduces the sample to 10 objects; allowing for solutions at different redshifts, only two galaxies survive as robust candidates. Most of the candidates are not far-infrared emitters, corroborating their association with passive galaxies. Our results translate into an upper limit in the number density of ∼0.173 arcmin2 above the detection limit. However, we conclude that the selection of passive galaxies at z > 3 is still subject to significant uncertainties, being sensitive to assumptions in the SED modelling adopted and to the relatively low S/N of the objects. By means of dedicated simulations, we show that JWST will greatly enhance the accuracy, allowing for a much more robust classification. [ABSTRACT FROM AUTHOR]

Published
2018
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62. Status of APE projects

Author

Alfieri, R, DI RENZO, R, Onofri, E, Bartoloni, A, Battista, C, Cabibbo, N, Cosimi, M, Lonardo, A, Michelotti, A, Proietti, B, Rapuano, F, Rossetti, D, Sacco, G, Tassa, S, Torelli, M, Vicini, P, Boucaud, P, Pene, O, Errico, W, Magazzu, G, Sartori, L, Schifano, Sebastiano Fabio, Tripiccione, Raffaele, DE RISO, P, Petronzio, R, Destri, C, Frezzotti, R, Marchesini, G, Gensch, U, Jansen, K, Kretzschmann, A, Leich, H, Paschedag, N, Pleiter, D, Schwendicke, U, Simma, H, Sommer, R, Sulanke, K, Wegner, P, Fucci, A, Martin, B, Pech, J, Panizzi, E, Petricola, A, CA APE COLLABORATION, Alfieri, R, Di Renzo, R, Onofri, E, Bartoloni, A, Battista, C, Cabibbo, N, Cosimi, M, Lonardo, A, Michelotti, A, Proietti, B, Rapuano, F, Rossetti, D, Sacco, G, Tassa, S, Torelli, M, Vicini, P, Boucaud, P, Pène, O, Errico, W, Magazzù, G, Sartori, L, Schifano, F, Tripiccione, R, De Riso, P, Petronzio, R, Destri, C, Frezzotti, R, Marchesini, G, Gensch, U, Jansen, K, Kretzschmann, A, Leich, H, Paschedag, N, Pleiter, D, Schwendicke, U, Simma, H, Sommer, R, Sulanke, K, Wegner, P, Fucci, A, Martin, B, Pech, J, Panizzi, E, and Petricola, A

Subjects
Rest (physics), FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI, Nuclear and High Energy Physics, lattice qcd, business.industry, Mathematics education, Artificial intelligence, High performance computing, Psychology, business, Atomic and Molecular Physics, and Optics, NO
Abstract

This talk is divided in two parts. In the first part, we will summarize the status of the APEmille project that will be completed by the end of the year. We will then devote the rest of the talk to the description of a new project for a multi-TeraFlop machine, apeNEXT. The interested reader will find a much more detailed discussion of all the items touched upon here in the full proposal of the project that will shortly appear on hep-lat. © 2001 Elsevier Science B.V. All rights reserved.

Published
2001

63. Progress of the APEmille project

Author

Aglietti, F, Bartoloni, A, Cabibbo, N, Cosimi, M, D'Auria, I, DE RISO, P, Errico, W, Friebel, W, Gensch, U, Kretzschmann, A, Leich, H, Lonardo, A, Magazzu, G, Menchikov, A, Michelotti, A, Panizzi, E, Paschedag, N, Rapuano, F, Rossetti, D, Sacco, G, Schifano, Sebastiano Fabio, Schwendicke, U, Simma, H, Sulanke, Kh, Torelli, M, Tripiccione, Raffaele, Vicini, P, Wegner, P, CA APE COLLABORATION, Aglietti, F, Bartoloni, A, Cabibbo, N, Cosimi, M, D'Auria, I, De Riso, P, Errico, W, Friebel, W, Gensch, U, Kretzschmann, A, Leich, H, Lonardo, A, Magazzú, G, Menchikov, A, Michelotti, A, Panizzi, E, Paschedag, N, Rapuano, F, Rossetti, D, Sacco, G, Schifano, F, Schwendicke, U, Simma, H, Sulanke, K, Torelli, M, Tripiccione, R, Vicini, P, and Wegner, P

Subjects
high performance computing, FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI, Nuclear and High Energy Physics, Parallel computing, SIMD, Atomic and Molecular Physics, and Optics, Simulation, Mathematics, NO
Abstract

We report on the progress and status of the integration and test of APEmille, a SIMD parallel computer optimised for Lattice Gauge Theory (LGT) with a peak performance in the TeraFlops range. After extensive development and testing of the design, a first 128-node system has quickly and successfully been integrated. Tests with physics production runs are to be started soon.

Published
2000

64. Rationale and design for the Vaginal Erbium Laser Academy Study (VELAS): an international multicenter observational study on genitourinary syndrome of menopause and stress urinary incontinence

Author

Gambacciani, M., primary, Torelli, M. G., additional, Martella, L., additional, Bracco, G. L., additional, Casagrande, A. G., additional, Albertin, E., additional, Tabanelli, S., additional, Viglietta, M., additional, D’Ambrogio, G., additional, Garone, G., additional, and Cervigni, M., additional

Published
2015
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65. Informatics Education in Italian Secondary Schools

Author

Bellettini, C, Lonati, V, Malchiodi, D, Monga, M, Morpurgo, A, Torelli, M, Zecca, L, ZECCA, LUISA, Bellettini, C, Lonati, V, Malchiodi, D, Monga, M, Morpurgo, A, Torelli, M, Zecca, L, and ZECCA, LUISA

Abstract

This article describes the state of informatics education in the Italian secondary schools, highlighting how the learning objectives set up by the Ministry of Education are difficult to meet, due to the fact that the subject is often taught by teachers not holding an informatics degree, the lack of suitable teaching material and the expectations of pupils and families, who tend to identify informatics with the use of computer applications

Published
2014

67. THE APE-100 COMPUTER: (I) THE ARCHITECTURE

Author

Battista, C, Cabasino, S, Marzano, F, Paolucci, P, Pech, J, Rapuano, F, Sarno, R, Todesco, G, Torelli, M, Tross, W, Vicini, P, Cabibbo, N, Marinari, E, Parisi, G, Salina, G, Prete, F, Lai, A, Lombardo, M, Tripiccione, R, Fucci, A, Battista,C, Marzano,F, Paolucci, P., Pech, J., Todesco, GM, Torelli,M, Marinari,E, Prete, FD, Lombardo, MP, Fucci A., RAPUANO, FEDERICO, Battista, C, Cabasino, S, Marzano, F, Paolucci, P, Pech, J, Rapuano, F, Sarno, R, Todesco, G, Torelli, M, Tross, W, Vicini, P, Cabibbo, N, Marinari, E, Parisi, G, Salina, G, Prete, F, Lai, A, Lombardo, M, Tripiccione, R, Fucci, A, Battista,C, Marzano,F, Paolucci, P., Pech, J., Todesco, GM, Torelli,M, Marinari,E, Prete, FD, Lombardo, MP, Fucci A., and RAPUANO, FEDERICO

Published
1993

71. Scintigrafic Probe

Author

Scarponi, Claudio, Torelli, M, and Morelli, M.

Published
2008

74. B -> K* gamma decay on APE

Author

Abada, A., Boucaud, Philippe, Crisafulli, M., Leroy, J.P., Lubicz, V., Martinelli, G., Rapuano, F., Serone, M., Stella, N., Bartoloni, A., Battista, C., Cabasino, S., Cabibbo, N., Panizzi, E., Paolucci, P.S., Sarno, R., Todesco, G.M., Torelli, M., Vicini, P., Abada, A, Boucaud, P, Crisafulli, M, Leroy, Jp, Lubicz, Vittorio, Martinelli, G, Rapuano, F, Serone, M, Stella, N, Bartoloni, A, Battista, C, Cabasino, S, Cabibbo, N, Panizzi, E, Paolucci, P, Sarno, R, Todesco, Gm, Torelli, M, and Vicini

Subjects
High Energy Physics::Lattice, High Energy Physics::Phenomenology, Particle Physics - Lattice
Abstract

We present results for the radiative decay B\rightarrow K^* \gamma, obtained by using the Clover action at \beta = 6.0 on APE. The compatibility between the scaling laws predicted by the Heavy Quark Effective Theory (HQET) and pole dominance is discussed. The final result depends crucially on the assumed q^2-dependence of the form factors.

Published
1995

75. STUDY OF CHARM CORRELATIONS IN PI(-)-N INTERACTIONS AT ROOT-S-APPROXIMATE-TO-26 GEV

Author

Adamovich, M, Adinolfi, M, Alexandrov, Y, Angelini, Carlo, Antinori, E, Bacci, C, Barberis, D, Barney, D, Batten, J, Beusch, W, Bruschini, C, Cardarelli, R, Cardini, A, Casanova, V, Ceradini, F, Ciapetti, G, Dameri, M, Darbo, G, Diciaccio, A, Duane, A, Dufey, Jp, Farthouat, P, Flaminio, V, Forino, A, French, Br, Frenkel, A, Gemme, C, Gessaroli, R, Harrison, K, Hurst, R, Jank, W, Kirk, A, Lacava, F, Lassalle, Jc, Lazzeroni, C, Malferrari, L, Maljukov, S, Martellotti, G, Martinengo, P, Mazzanti, P, Mcewen, Jg, Minashvili, I, Nechaeva, P, Nisati, A, Orestano, D, Osculati, B, Passaseo, M, Penso, G, Petrolo, E, Pontecorvo, L, Quareni, A, Ragni, P, Rotscheidt, H, Ryzhov, V, Roda, CHIARA MARIA ANGELA, Rossi, L, Russakovich, N, Salvo, C, Santonico, R, Schuler, G, Semenov, A, Solovjev, A, Torelli, M, Veneziano, S, Verzocchi, M, Websdale, D, Weymann, M, Zanello, L, Zavertyaev, M., Adamovich, M, Adinolfi, M, Alexandrov, Y, Angelini, C, Antinori, E, Bacci, C, Barberis, D, Barney, D, Batten, J, Beusch, W, Bruschini, C, Cardarelli, R, Cardini, A, Casanova, V, Ceradini, Filippo, Ciapetti, G, Dameri, M, Darbo, G, Diciaccio, A, Duane, A, Dufey, Jp, Farthouat, P, Flaminio, V, Forino, A, French, Br, Frenkel, A, Gemme, C, Gessaroli, R, Harrison, K, Hurst, R, Jank, W, Kirk, A, Lacava, F, Lassalle, Jc, Lazzeroni, C, Malferrari, L, Maljukov, S, Martellotti, G, Martinengo, P, Mazzanti, P, Mcewen, Jg, Minashvili, I, Nechaeva, P, Nisati, A, Orestano, Domizia, Osculati, B, Passaseo, M, Penso, G, Petrolo, E, Pontecorvo, L, Quareni, A, Ragni, P, Rotscheidt, H, Ryzhov, V, Roda, C, Rossi, L, Russakovich, N, Salvo, C, Santonico, R, Schuler, G, Semenov, A, Solovjev, A, Torelli, M, Veneziano, S, Verzocchi, M, Websdale, D, Weymann, M, Zanello, L, and Zavertyaev, M.

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

We report on the associated production of charmed hadrons in pi(-)-nucleon interactions at root s approximate to 26 GeV at the CERN Omega' spectrometer. Results on the azimuthal correlation of charmed particle pairs are presented and compared to the predictions of Next-to-Leading-Order QCD calculations.

Published
1995

76. Quenched BK-parameter with the Wilson and Clover actions at beta=6.0

Author

Crisafulli M, Donini A, Martinelli G, Rapuano F, Ungarelli C, Vladikas A, Bartoloni A, Battista C, Cabasino S, Cabibbo N, Marzano F, Panizzi E, Paolucci PS, Sarno R, Todesco GM, Torelli M, Vicini P., LUBICZ, Vittorio, Crisafulli, M, Donini, A, Lubicz, Vittorio, Martinelli, G, Rapuano, F, Ungarelli, C, Vladikas, A, Bartoloni, A, Battista, C, Cabasino, S, Cabibbo, N, Marzano, F, Panizzi, E, Paolucci, P, Sarno, R, Todesco, Gm, Torelli, M, and Vicini, P.

Abstract

We present results for the kaon B parameter obtained by APE-100 from a sample of 100 configurations using the Wilson action and 200 configurations using the Clover action, on a 18(3) x 64 lattice at beta = 6.0. We have also compared the results for B-K using two different values for the effective coupling constant g. We observe a strong dependence of B-K on the prescription adopted for g in the Wilson case, contrary to the results of the Clover case which are almost unaffected by the choice of g.

Published
1995

77. Light-quark physics on different lattices

Author

Allton CR, Crisafulli M, Martinelli G, Bartoloni A, Battista C, Cabasino S, Cabibbo N, Marzano F, Paolucci PS, Pech J, Rapuano F, Sarno R, Todesco GM, Torelli M, Tross W, Vicini P., LUBICZ, Vittorio, Allton, Cr, Crisafulli, M, Lubicz, Vittorio, Martinelli, G, Bartoloni, A, Battista, C, Cabasino, S, Cabibbo, N, Marzano, F, Paolucci, P, Pech, J, Rapuano, F, Sarno, R, Todesco, Gm, Torelli, M, Tross, W, and Vicini, P.

Abstract

The light quark results from three different simulations are summarized. We get consistent results, within our statistics, between smeared and non smeared data. A comparison is performed with similar results from the UKQCD collaboration. All runs have been performed on two 6.4 GF APE computers [1].

Published
1994

78. D-meson and B-meson semileptonic decays

Author

Abada A, Allton CR, Bartoloni A, Battista C, Boucaud P, Cabasino S, Cabibbo N, Carpenter DB, Crisafulli M, Gusken S, Hernandez P, Martinelli G, Marzano F, Paolucci PS, Pech J, Pene O, Rapuano F, Sachrajda CT, Sarno R, Schilling K, Siegert G, Stella N, Todesco GM, Torelli M, Tross W, Vicini P, Vladikas A., LUBICZ, Vittorio, Abada, A, Allton, Cr, Bartoloni, A, Battista, C, Boucaud, P, Cabasino, S, Cabibbo, N, Carpenter, Db, Crisafulli, M, Gusken, S, Hernandez, P, Lubicz, Vittorio, Martinelli, G, Marzano, F, Paolucci, P, Pech, J, Pene, O, Rapuano, F, Sachrajda, Ct, Sarno, R, Schilling, K, Siegert, G, Stella, N, Todesco, Gm, Torelli, M, Tross, W, Vicini, P, and Vladikas, A.

Subjects
High Energy Physics::Lattice, High Energy Physics::Phenomenology, food and beverages, High Energy Physics::Experiment
Abstract

Recent results for semi-leptonic decays of D and B mesons at beta = 6.4, using the Wilson action, and at beta = 6.0, using the Clover action, are reported.

Published
1994

79. A high statistics lattice calculation of fB(static) at beta=6.2 using the Clover action

Author

Allton CR, Crisafulli M, Martinelli G, Salina G, Vladikas A, Bartoloni A, Battista C, Cabasino S, Cabibbo N, Marzano F, Paolucci PS, Pech J, Rapuano F, Sarno R, Todesco GM, Torelli M, Tross W, Vicini P., LUBICZ, Vittorio, Allton, Cr, Crisafulli, M, Lubicz, Vittorio, Martinelli, G, Salina, G, Vladikas, A, Bartoloni, A, Battista, C, Cabasino, S, Cabibbo, N, Marzano, F, Paolucci, P, Pech, J, Rapuano, F, Sarno, R, Todesco, Gm, Torelli, M, Tross, W, and Vicini, P.

Subjects
High Energy Physics::Lattice, High Energy Physics::Experiment
Abstract

We present a calculation of f(B) in the static limit, obtained by numerical simulation of quenched QCD, at beta = 6.2 on a 18(3) x 64 lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy (static)-light correlation functions of different smeared operators, on a sample of 220 gauge field configurations. We have obtained f(B)static = (290 +/- 15 +/- 45) MeV, where the first error comes from the uncertainty in the determination of the matrix element and the second comes from the uncertainty in the lattice spacing. We also obtain M(Bs) - M(Bd) = (70 +/- 10) MeV and f(Bs)stat/f(Bd)stat = 1.11 (3). A comparison of our results with other calculations of the same quantity is made.

Published
1994

83. Alla scoperta del pane

Author

Coppola, Raffaele, Sorrentino, A, Succi, Mariantonietta, Reale, A, Torelli, M, Sorrentino, Elena, and Grazia, L.

Published
2001

84. Proposal for a multi-Tflops LGT computing project

Author

Aglietti, F., Bartoloni, A., Battista, C., Cabibbo, N., Cosimi, M., Lonardo, A., Michelotti, A., Rapuano, F., Rossetti, D., Torelli, M., Vicini, P., Alfieri, R., Di Renzo, R., Onofri, E., D'Auria, I., Errico, W., Magazzu, G., Schifano, F., Tripiccione, R., Deriso, P., Petronzio, R., Destri, C., Marchesini, G., Friebel, W., Gensch, U., Kretzschmann, A., Leich, H., Menchikov, A., Paschedag, N., Sacco, G., Schwendicke, U., Simma, H., Sommer, R., Sulanke, K., Wegner, P., Fucci, A., Martin, B., and Panizzi, E.

Subjects
quantum chromodynamics, lattice field theory, microprocessor, communications, costs, computer
Abstract

18 pp. (1999).

Published
1999

86. Measurement of the beauty production cross-section in 350 GeV/c pi-Cu interaction

Author

Adamovich, M. I., Adinolfi, M, ALEXANDROV YU, A, Angelini, C, Antinori, Federico, Bacci, Cesare, Barberis, Dario, Barney, D, Batten, J, Beusch, Werner, Bruschini, C, Cardarelli, R, Cardini, A, Casanova, V, Ceradini, F, Cianfarani, C, Ciapetti, G, Dameri, M, Darbo, G, DE SANTO, A, DI CIACCIO ANNA, Duane, A, Dufey, J. P., Farthouat, Philippe, Flaminio, Vincenzo, Forino, A, FRENCH BERNARD, R, Frenkel, A, Gemme, C, Gessaroli, R, Harrison, K, Hummadi, N, Hurst, R. B., Kirk, A, Lacava, F, Lassalle, J. C., Lazzeroni, C, Malferrari, L, Maljukov, S, Martellotti, G, Martinengo, P, Mazzanti, P, Mcewen, J. G., Minashvili, I. A., Musico, P, NECHAEVA P., Yu, Nisati, A, Orestano, D, Osculati, BIANCA MARIA, Palutan, M, Passaseo, M, Penso, G, Petrolo, E, Pontecorvo, L, Quareni, A, Rotscheidt, Herbert, Ryzhov, V, Roda, C, Rossi, L, Rusakovitch, N. A., Salvo, C, Santonico, R, Schuler, G. A., Semenov, A. A., Soloviev, A. S., Torelli, M, Veneziano, Stefano, Verzocchi, M, WEBSDALE DAVID, M, Weymann, M, Zanello, L, and Zavertyaev, M. V.

Published
1998

88. A measurement of beauty production cross section

Author

Rossi, L., Adamovich, M., Adinolfi, M., Alexandrov, Y., Angelini, C., Bacci, C., Barberis, D., Barney, D., Batten, J., Beusch, W., Claudio Bruschini, Cardarelli, R., Cardini, A., Casanova, V., Ceradini, F., Ciapetti, G., Dameri, M., Darbo, G., Diciaccio, A., Duane, A., Dufey, Jp, Farthouat, P., Flaminio, V., Forino, A., French, Br, Frenkel, A., Gemme, C., Gessaroli, R., Harrison, K., Hurst, R., Kirk, A., Lacava, F., Lazzeroni, C., Malferrari, L., Maljukov, S., Martellotti, G., Martinengo, P., Mazzanti, P., Mcewen, Jg, Minashvili, I., Nechaeva, P., Nisati, A., Orestano, D., Osculati, B., Passaseo, M., Penso, G., Petrolo, E., Pontecorvo, L., Quareni, A., Ragni, P., Totscheidt, H., Ryzhov, V., Roda, C., Rossi, C., Russakovich, N., Salvo, C., Santonico, R., Schuler, G., Semenov, A., Solovjev, A., Torelli, M., Veneziano, S., Verzocchi, M., Websdale, D., Weymann, M., Zanello, L., and Zavertyaev, M.

Published
1995

89. $B \rightarrow K^\star \gamma$ decay on APE

Author

Abada, As., Boucaud, Ph., Crisafulli, M., Leroy, J. P., Lubicz, V., Martinelli, G., Rapuano, F., Serone, M., Stella, N., Bartoloni, A., Battista, C., Cabasino, S., Cabibbo, N., Panizzi, E., Paolucci, P. S., Sarno, R., Todesco, G. M., Torelli, M., Vicini, P., and The APE Collaboration

Published
1995

90. Results on charm and beauty production from the CERN WA92 experiment

Author

Adamovich, M., Adinolfi, M., Alexandrov, Y., Angelini, C., Antinori, F., Bacci, C., Barberis, D., Barney, D., Batten, J., Beusch, W., Claudio Bruschini, Cardarelli, R., Cardini, A., Casanova, V., Ceradini, F., Ciapetti, G., Dameri, M., Darbo, G., Desanto, A., Diciaccio, A., Duane, A., Dufey, Jp, Farthouat, P., Flaminio, V., Forino, A., French, Br, Frenkel, A., Gemme, C., Gessaroli, R., Harrison, K., Hurst, R., Kirk, A., Lacava, F., Lassalle, Jc, Lazzeroni, C., Malferrari, L., Maljukov, S., Martellotti, G., Martinengo, P., Mazzanti, P., Mcewen, Jg, Minashvili, I., Nechaeva, P., Nisati, A., Novelli, P., Orestano, D., Osculati, B., Passaseo, M., Penso, G., Petrolo, E., Pontecorvo, L., Quareni, A., Ragni, P., Rotscheidt, H., Ryzhov, V., Roda, C., Rossi, L., Russakovich, N., Salvo, C., Santonico, R., Schuler, G., Semenov, A., Solovjev, A., Torelli, M., Veneziano, S., Verzocchi, M., Websdale, D., Weymann, M., Zanello, L., and Zavertyaev, M.

Subjects
Particle Physics - Experiment
Published
1995

91. Quenched $B_K$-parameter with the Wilson and Clover actions at $��= 6.0$

Author

Crisafulli, M., Donini, A., Lubicz, V., Martinelli, G., Rapuano, F., Ungarelli, C., Vladikas, A., Collaboration, the APE, Bartoloni, A., Battista, C., Cabasino, S., Cabibbo, N., Marzano, F., Panizzi, E., Paolucci, P. S., Sarno, R., Todesco, G. M., Torelli, M., and Vicini, P.

Subjects
High Energy Physics - Lattice (hep-lat), FOS: Physical sciences
Abstract

We present results for the Kaon $B$ parameter from a sample of $200$ configurations using the Wilson action and $460$ configurations using the Clover action, on a $18^3 \times 64$ lattice at $��=6.0$. A slight improvement of the chiral behaviour of $B_K$ is observed due to the Clover action. We have also compared the results for $B_K$ obtained from two different procedures for the boosting of the coupling constant $g$. We observe a strong dependence of $B_K$ on the prescription adopted for $g$ in the Wilson case, contrary to the results of the Clover case which are almost unaffected by the choice of $g$. Combining some recently obtained non perturbative estimates for the renormalisation constants with our Clover matrix element, we observe a significant improvement in the chiral behaviour of $B_K$., 3 pages, Latex, Postscript file with figures available at ftp://hpteo.roma1.infn.it/pub/preprints/lat94/donini ; to appear in Lattice '94, Nucl. Phys. (Proc.Suppl.)

Published
1995
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92. Study of charm correlations in $\pi^{-}$-N interactions at $\sqrt{s}$ $\appprox$ 26 GeV

Author

Adamovich, M I, Adinolfi, M, Alexandrov, Yu A, Angelini, C, Antinori, Federico, Bacci, Cesare, Barberis, D, Barney, D, Batten, J, Beusch, Werner, Bruschini, C, Cardarelli, R, Cardini, A, Casanova, V, Ceradini, F, Ciapetti, G, Dameri, M, Darbo, G, Di Ciaccio, Anna, Duane, A, Dufey, J P, Farthouat, Philippe, Flaminio, Vincenzo, Forino, A, French, Bernard R, Frenkel, A, Gemme, C, Gessaroli, R, Harrison, K, Hurst, R B, Jank, Werner, Kirk, A, Lacava, F, Lassalle, J C, Lazzeroni, C, Malferrari, L, Maljukov, S, Martellotti, G, Martinengo, P, Mazzanti, P, McEwen, J G, Minashvili, I A, Nechaeva, P Yu, Nisati, A, Orestano, D, Osculati, B, Passaseo, M, Penso, G, Petrolo, E, Pontecorvo, L, Quareni, A, Ragni, P, Rotscheidt, Herbert, Ryzhov, V, Roda, C, Rossi, L, Rusakovitch, N A, Salvo, C, Santonico, R, Schuler, G A, Semenov, A A, Soloviev, A S, Torelli, M, Veneziano, Stefano, Verzocchi, M, Websdale, David M, Weymann, M, Zanello, L, and Zavertyaev, M V

Subjects
Particle Physics - Experiment
Published
1994

93. The use of a decay detector in the search for beauty decays in the WA92 experiment

Author

Adamovich, M I, Adinolfi, M, Alexandrov, T, Angelini, C, Antinori, Federico, Bacci, Cesare, Barberis, D, Barney, D, Batten, J, Beusch, Werner, Bruschini, C, Cardarelli, R, Cardini, A, Ceradini, F, Ciapetti, G, Dameri, M, Darbo, G, Di Ciaccio, Anna, Duane, A, Dufey, J P, Farthouat, Philippe, Flaminio, Vincenzo, Forino, A, French, Bernard R, Frenkel, A, Gemme, G, Gessaroli, R, Harrison, K, Hummadi, N, Hurst, R B, Kirk, A, Lacava, F, Lassalle, J C, Lazzeroni, C, Malferrari, L, Maljukov, S, Martellotti, G, Martinengo, P, Mazzanti, P, McEwen, J G, Minashvili, I A, Nechaeva, P Yu, Nisati, A, Orestano, D, Osculati, B, Passaseo, M, Penso, G, Petrolo, E, Pontecorvo, L, Quareni, A, Ragni, P, Rotscheidt, Herbert, Ryzhov, V, Roda, C, Rossi, L, Rusakovitch, N A, Salvo, C, Santonico, R, Shuler, G, Semenov, A A, Soloviev, A S, Torelli, M, Veneziano, Stefano, Verzocchi, M, Websdale, David M, Weymann, M, Zanello, L, and Zavertyaev, M V

Subjects
Particle Physics - Experiment
Published
1994

94. A high statistic lattice calculation of $\int_{B}^{static}$ at $\beta$ = 6.2 using the Clover action

Author

Allton, C.R., Crisafulli, M., Lubicz, V., Salina, G., Martinelli, G., Vladikas, A., Bartoloni, A., Battista, C., Cabasino, S., Cabibbo, N., Marzano, F., Paolucci, P.S., Pech, J., Rapuano, F., Sarno, R., Todesco, G.M., Torelli, M., Tross, W., and Vicini, P.

Subjects
Particle Physics - Theory
Abstract

We present a calculation of $f_B$ in the static limit, obtained by numerical simulation of quenched QCD, at $\beta=6.2$ on a $18~3 \times 64$ lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy(static)-light correlation functions of different smeared operators, on a sample of 220 gauge field configurations. We have obtained $f_B~{static}=(290 \pm 15 \pm 45)$ MeV, where the first error comes from the uncertainty in the determination of the matrix element and the second comes from the uncertainty in the lattice spacing. We also obtain $M_{B_s}-M_{B_d}= (70 \pm 10)$ MeV and $f~{stat}_{B_s}/f~{stat}_{B_d}=1.11(3)$. A comparison of our results with other calculations of the same quantity is made. We present a calculation of ƒ B in the static limit, obtained by numerical simulation of quenched QCD, at β =6.2 on a 18 3 × 64 lattice, using the SW-Clover quark action. The decay constant has been extracted by studying heavy (static)-light correlation functions of different smeared operators, on a sample of 220 gauge field configurations. We have obtained ƒ B static =(290±15±45) MeV , where the first error comes from the uncertainty in the determination of the matrix element and the second comes from the uncertainty in the lattice spacing. We also obtain M B s − M B d =(70±10) MeV and ƒ B s stat /ƒ B d stat =1.11 (3) . A comparison of our results with other calculations of the same quantity is made.

Published
1994

95. Status of APEmille

Author

Bartoloni, A, Boucaud, P, Cabibbo, N, Calvayrac, F, Della Morte, M, De Pietri, R, De Riso, P, Di Carlo, F, Di Renzo, F, Errico, W, Frezzotti, R, Giorgino, T, Heitger, J, Lonardo, A, Loukianov, M, Magazzu, G, Micheli, J, Morenas, V, Paschedag, N, Pene, O, Petronzio, R, Pleiter, D, Rapuano, F, Rolf, J, Rossetti, D, Sartori, L, Simma, H, Schifano, F, Torelli, M, Tripiccione, R, Vicini, P, Wegner, P, RAPUANO, FEDERICO, Wegner, P., Bartoloni, A, Boucaud, P, Cabibbo, N, Calvayrac, F, Della Morte, M, De Pietri, R, De Riso, P, Di Carlo, F, Di Renzo, F, Errico, W, Frezzotti, R, Giorgino, T, Heitger, J, Lonardo, A, Loukianov, M, Magazzu, G, Micheli, J, Morenas, V, Paschedag, N, Pene, O, Petronzio, R, Pleiter, D, Rapuano, F, Rolf, J, Rossetti, D, Sartori, L, Simma, H, Schifano, F, Torelli, M, Tripiccione, R, Vicini, P, Wegner, P, RAPUANO, FEDERICO, and Wegner, P.

Abstract

This paper presents the status of the APEmille project, which is essentially completed, as far as machine development and construction is concerned. Several large installations of APEmille are in use for physics production runs leading to many new results presented at this conference. This paper briefly summarizes the APEmille architecture, reviews the status of the installations and presents some performance figures for physics codes.

Published
2002

96. PRELIMINARY-RESULTS FROM APE-100

Author

Bartoloni, A, Battista, C, Cabasino, S, Marzano, F, Paolucci, Ps, Pech, J, Rapuano, F, Sarno, R, Todesco, Gm, Torelli, M, Tross, W, Vicini, P, Tripiccione, Raffaele, Cabibbo, N, Salina, G, Fucci, A, Lubicz, V, Maiani, L, Martinelli, G, and Vladikas, A.

Published
1993

98. First-level trigger systems for LHC experiments

Author

Ellis, Nick, Fensome, I., Garvey, J., Jovanovic, P., Staley, R., Watson, A., Taylor, B.G., Vanuxem, J.P., Hanke, P., Keller, M., Kluge, E.E., Schmitt, K., Wunsch, M., Fent, J., Frochtenicht, W., Kiesling, Christian M., Oberlack, H., Schacht, P., Eisenhandler, E., Landon, M., Thompson, Graham, Perera, V., Quinton, S., Carter, J., Green, B., Strong, J., Nisati, A., Petrolo, E., Torelli, M., Veneziano, S., Zanello, Lucia, Appelquist, G., Bohm, C., Hovander, B., and Yamdagni, N.

Subjects
Detectors and Experimental Techniques
Abstract

We propose to carry out a broad-based programme of R&D on level-1 trigger systems for LHC experiments. We will consider the overall level-1 which coordinates different subtriggers and which interacts with the front end electronics and with the level-2 system. Careful attention will be paid to systems aspects and problems of synchronization within the pipelined processor system. Trigger algorithms for selecting events with high-pt electrons, photons, muons, jets and large missing Et will be evaluated by physics simulation studies. We will study possible implementations of such trigger algorithms in fast electronics by making conceptual design studies and using behavioural simulation models. For critical areas more detailed design studies will be made, and prototypes of some key elements will be constructed and tested. The proposed R&D project builds on existing studies and will complement other R&D projects already funded by the DRDC.

Published
1992

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