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6,173 results on '"Zupanc, A"'

4. Identification with possibly invalid IVs

Author

Bruneel-Zupanc, Christophe and Beyhum, Jad

Subjects
Economics - Econometrics
Abstract

This paper proposes a novel identification strategy relying on quasi-instrumental variables (quasi-IVs). A quasi-IV is a relevant but possibly invalid IV because it is not exogenous or not excluded. We show that a variety of models with discrete or continuous endogenous treatment which are usually identified with an IV - quantile models with rank invariance, additive models with homogenous treatment effects, and local average treatment effect models - can be identified under the joint relevance of two complementary quasi-IVs instead. To achieve identification, we complement one excluded but possibly endogenous quasi-IV (e.g., "relevant proxies" such as lagged treatment choice) with one exogenous (conditional on the excluded quasi-IV) but possibly included quasi-IV (e.g., random assignment or exogenous market shocks). Our approach also holds if any of the two quasi-IVs turns out to be a valid IV. In practice, being able to address endogeneity with complementary quasi-IVs instead of IVs is convenient since there are many applications where quasi-IVs are more readily available. Difference-in-differences is a notable example: time is an exogenous quasi-IV while the group assignment acts as a complementary excluded quasi-IV.

Published
2024

5. Impact on survival of sarcopenia, systemic inflammatory response and anthropometric factors after pancreatectomy for resectable pancreatic adenocarcinoma

Author

Kaja Balcer, Jonathan Garnier, Yasmina Richa, Christophe Bruneel-Zupanc, Guillaume Piessen, Olivier Turrini, Stephanie Truant, and Mehdi El Amrani

Subjects
Pancreatic adenocarcinoma, Sarcopenia, Systemic inflammatory response, Obesity, Surgery, RD1-811, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Abstract Introduction Pancreatic adenocarcinoma (PDAC) is becoming a public health issue with a 5-years survival rate around 10%. Patients with PDAC are often sarcopenic, which impacts postoperative outcome. At the same time, overweight population is increasing and adipose tissue promotes tumor related-inflammation. With several studies supporting independently these data, we aimed to assess if they held an impact on survival when combined. Methods We included 232 patients from two university hospitals (CHU de Lille, Institut Paoli Calmette), from January 2011 to December 2018, who underwent Pancreaticoduodenectomy (PD) for resectable PDAC. Preoperative CT scan was used to measure sarcopenia and visceral fat according to international cut-offs. Neutrophil to lymphocyte (NLR) and platelet to lymphocyte ratios (PLR) were used to measure inflammation. For univariate and multivariate analyses, the Cox proportional-hazard model was used. P-values below 0.05 were considered significant. Results Sarcopenic patients with visceral obesity were less likely to survive than the others in multivariate analysis (OS, HR 1.65, p= 0.043). Cutaneous obesity did not influence survival. We also observed an influence on survival when we studied sarcopenia with visceral obesity (OS, p= 0.056; PFS, p = 0.014), sarcopenia with cutaneous obesity (PFS, p= 0.005) and sarcopenia with PLR (PFS, p= 0.043). This poor prognosis was also found in sarcopenic obese patients with high PLR (OS, p= 0.05; PFS, p= 0.01). Conclusion Sarcopenic obesity was associated with poor prognosis after PD for PDAC, especially in patients with systemic inflammation. Pre operative management of these factors should be addressed in pancreatic cancer patients.

Published
2024
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6. Degradation of hydroxypropyl methylcellulose (HPMC) by acoustic and hydrodynamic cavitation

Author

Andraž Zupanc, Martin Petkovšek, Blaž Zdovc, Ema Žagar, and Mojca Zupanc

Subjects
Hydroxypropyl methylcellulose, Acoustic cavitation, Hydrodynamic cavitation, Degradation, Oxidation, Chemistry, QD1-999, Acoustics. Sound, QC221-246
Abstract

The present study aims to investigate the degradation of HPMC on a laboratory scale by acoustic and hydrodynamic cavitation. The effects of temperature and the addition of an external oxidizing agent on the effectiveness of HPMC degradation were systematically investigated by SEC/MALS-RI, FTIR and 1H NMR. The results of the experiments without cavitation show that an external oxidizing agent alone reduces the weight-average molar mass at 60 °C in 30 min for 45.1 % (from 335 to 184 kg mol−1). However, the weight-average molar mass of HPMC decreased significantly more in the cavitation treatment, for 98.8 % (from 335 to 4 kg mol−1) in 30 min at optimal operating conditions of hydrodynamic cavitation (i.e. addition of external oxidant and 60 °C) with a concomitant narrowing of the molar mass distribution, as shown by the dispersity value, which decreased from 2.24 to 1.31. Compared to acoustic cavitation, hydrodynamic cavitation also proved to be more energy efficient. The FTIR spectra of the cavitated HPMC samples without the addition of H2O2 show negligible oxidation of the hydroxyl groups and the glycosidic bonds, confirming that mechanical effects predominate in HPMC degradation in these cases. In contrast, when H2O2 was added, FTIR and 1H NMR show typical signals for cellulose oxidation products, especially when the experiments were performed at 60 °C, confirming that chemical as well as mechanical effects are responsible for the extensive HPMC degradation in these cases. Since treatment methods that lead to lower molar masses and narrower molar mass distributions of the polymers are lacking or require longer treatment times (e.g. 24 h), mechanochemical treatment methods such as cavitation have great potential, as they enable faster polymer degradation (in our case 30 min) through a combination of mechanical and/or chemical degradation mechanisms.

Published
2024
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18. Don't (fully) exclude me, it's not necessary! Identification with semi-IVs

Author

Bruneel-Zupanc, Christophe

Subjects
Economics - Econometrics
Abstract

This paper proposes a novel tool to nonparametrically identify models with a discrete endogenous variable or treatment: semi-instrumental variables (semi-IVs). A semi-IV is a variable that is relevant but only partially excluded from the potential outcomes, i.e., excluded from at least one, but not necessarily all, potential outcome equations. It follows that standard instrumental variables (IVs), which are fully excluded from all the potential outcomes, are a special (extreme) case of semi-IVs. I show that full exclusion is stronger than necessary because the same objects that are usually identified with an IV (Imbens and Angrist, 1994; Heckman and Vytlacil, 2005; Chernozhukov and Hansen, 2005) can be identified with several semi-IVs instead, provided there is (at least) one semi-IV excluded from each potential outcome. For applied work, tackling endogeneity with semi-IVs instead of IVs should be an attractive alternative, since semi-IVs are easier to find: most selection-specific costs or benefits can be valid semi-IVs, for example. The paper also provides a simple semi-IV GMM estimator for models with homogenous treatment effects and uses it to estimate the returns to education.

Published
2023

19. 3D engineered scaffold for large-scale Vigil immunotherapy production

Author

Fabienne Kerneis, Ernest Bognar, Laura Stanbery, Seongjun Moon, Do Hoon Kim, Yuxuan Deng, Elliot Hughes, Tae-Hwa Chun, Darron Tharp, Heidi Zupanc, Chris Jay, Adam Walter, John Nemunaitis, and Joerg Lahann

Subjects
Cell expansion, Vigil, Immunotherapy, Autologous tumor cell therapy, Ovarian cancer, Medicine, Science
Abstract

Abstract Previously, we reported successful cellular expansion of a murine colorectal carcinoma cell line (CT-26) using a three-dimensional (3D) engineered extracellular matrix (EECM) fibrillar scaffold structure. CCL-247 were grown over a limited time period of 8 days on 3D EECM or tissue culture polystyrene (TCPS). Cells were then assayed for growth, electroporation efficiency and Vigil manufacturing release criteria. Using EECM scaffolds, we report an expansion of CCL-247 (HCT116), a colorectal carcinoma cell line, from a starting concentration of 2.45 × 105 cells to 1.9 × 106 cells per scaffold. Following expansion, 3D EECM-derived cells were assessed based on clinical release criteria of the Vigil manufacturing process utilized for Phase IIb trial operation with the FDA. 3D EECM-derived cells passed all Vigil manufacturing release criteria including cytokine expression. Here, we demonstrate successful Vigil product manufacture achieving the specifications necessary for the clinical trial product release of Vigil treatment. Our results confirm that 3D EECM can be utilized for the expansion of human cancer cell CCL-247, justifying further clinical development involving human tissue sample manufacturing including core needle biopsy and minimal ascites samples.

Published
2024
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21. A Systematic Review and Characterization of the Major and Most Studied Urban Soil Threats in the European Union

Author

Binner, Hannah, Wojda, Piotr, Yunta, Felipe, Breure, Timo, Schievano, Andrea, Massaro, Emanuele, Jones, Arwyn, Newell, Jennifer, Paradelo, Remigio, Popescu Boajă, Iustina, Baltrėnaitė-Gedienė, Edita, Tuttolomondo, Teresa, Iacuzzi, Nicolò, Bondi, Giulia, Zupanc, Vesna, Mamy, Laure, Pacini, Lorenza, De Feudis, Mauro, Cardelli, Valeria, Kicińska, Alicja, Stock, Michael J., Liu, Hongdou, Demiraj, Erdona, and Schillaci, Calogero

Published
2024
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22. Investigating the public perception of green, hybrid and grey flood risk management measures in Europe

Author

Nejc Bezak, Pavel Raška, Jan Macháč, Jiří Louda, Vesna Zupanc, and Lenka Slavíková

Subjects
Public perception, Flood risk management, Green measures, Grey measures, Acceptability, Feasibility, Environmental sciences, GE1-350, Social sciences (General), H1-99
Abstract

Climate change is expected to affect the frequency and magnitude of floods, which are among the costliest hazards in Europe. As natural hazards have a significant impact on infrastructure and people's lives and their habitats, novel measures to cope with climate change need to be considered. Different types of measures, such as green, grey and hybrid solutions, can be used to mitigate the impacts of natural hazards. Green measures (also referred to as nature-based solutions) are currently being promoted in the European Union, but several barriers to implementing these measures exist. The question arises as to what hinders the wider implementation of green measures and therefore results in a preference for conventional grey measures in some countries. This study examines the differences in the perceived effectiveness, feasibility and acceptance of different types of flood risk management measures in three European countries (Slovenia, Czechia, and the Netherlands). The results show statistically significant differences in the perceived effectiveness, feasibility and acceptance of the studied measures. With respect to individual measures, respondents in all three countries tend to view conventional grey measures (dams and cisterns) as more effective and acceptable than green and hybrid measures. However, grey measures are perceived as difficult to implement. The results reveal that the perceived effectiveness and acceptability of the measures are related. The major drivers affecting the differences in the perceptions of different measures are the countries of the respondents and the sociodemographic variables of income and age. In contrast to other studies, experiences with past floods and private insurance are not statistically significant. Our results thus indicate that, along with individual behaviour, aggregate social drivers should be considered when implementing flood risk management measures across the EU.

Published
2024
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27. Identifying risk factors for blood culture negative infective endocarditis: An international ID-IRI study

Author

Mine Filiz, Hakan Erdem, Handan Ankarali, Edmond Puca, Yvon Ruch, Lurdes Santos, Teresa Fasciana, Anna M. Giammanco, Nesrin Ghanem-Zoubi, Xavier Argemi, Yves Hansmann, Rahmet Guner, Gilda Tonziello, Jean-Philippe Mazzucotelli, Najada Como, Sukran Kose, Ayse Batirel, Asuman Inan, Necla Tulek, Abdullah Umut Pekok, Ejaz Ahmed Khan, Atilla Iyisoy, Meliha Meric-Koc, Ayse Kaya-Kalem, Pedro Palma Martins, Imran Hasanoglu, André Silva-Pinto, Nefise Oztoprak, Raquel Duro, Fahad Almajid, Mustafa Dogan, Nicolas Dauby, Jesper Damsgaard Gunst, Recep Tekin, Deborah Konopnicki, Nicola Petrosillo, Ilkay Bozkurt, Jamal Wadi Al Ramahi, Corneliu Popescu, Ilker Inanc Balkan, Safak Ozer-Balin, Tatjana Lejko Zupanc, Antonio Cascio, Irina Magdalena Dumitru, Aysegul Erdem, Gulden Ersoz, Meltem Tasbakan, Oday Abu Ajamieh, Fatma Sirmatel, Simin Florescu, Serda Gulsun, Hacer Deniz Ozkaya, Sema Sari, Selma Tosun, Meltem Avci, Yasemin Cag, Guven Celebi, Ayse Sagmak-Tartar, Sumeyra Karakus, Alper Sener, Arjeta Dedej, Serkan Oncu, Rosa Fontana Del Vecchio, Derya Ozturk-Engin, and Canan Agalar

Subjects
Infective endocarditis, Blood culture negative endocarditis, Rheumatic heart disease, Prosthetic valves, Cardiac disorders, Infectious and parasitic diseases, RC109-216
Abstract

Background: Blood culture-negative endocarditis (BCNE) is a diagnostic challenge, therefore our objective was to pinpoint high-risk cohorts for BCNE. Methods: The study included adult patients with definite endocarditis. Data were collected via the Infectious Diseases International Research Initiative (ID-IRI). The study analysing one of the largest case series ever reported was conducted across 41 centers in 13 countries. We analysed the database to determine the predictors of BCNE using univariate and logistic regression analyses. Results: Blood cultures were negative in 101 (11.65 %) of 867 patients. We disclosed that as patients age, the likelihood of a negative blood culture significantly decreases (OR 0.975, 95 % CI 0.963–0.987, p

Published
2024
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28. A Report on the Round Table 'Are You Here All Alone?: The Experiences, Challenges, and Successes of Female Researchers in Fieldwork'

Author

Simona Kuntarič Zupanc, Petra Hamer, and Tina Ivnik

Subjects
ethnography, feminism, Ethnology. Social and cultural anthropology, GN301-674
Abstract

The round table titled “A ti pa kar sama tukaj?: Izkušnje, izzivi in uspehi raziskovalk na terenskem delu” (“Are You Here All Alone?: The Experiences, Challenges, and Successes of Female Researchers in Fieldwork”) took place on 21 May 2024 at the Department of Ethnology and Cultural Anthropology at the Faculty of Arts, University of Ljubljana, and so concluded a series of events part of the Dnevi enakosti spolov FF 2024 (Days of Gender Equality FF 2024). The organisers of the round table and researchers of the ERC project DEAGENCY, Simona K. Zupanc, Tina Ivnik, and Petra Hamer, encouraged the participants to reflect on two key questions: how gender influences fieldwork and which safety strategies participants use and recommend in fieldwork.

Published
2024
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29. Preliminary analysis: Effect of a rotary generator of hydrodynamic cavitation on rheology and methane yield of wastewater sludge

Author

Marko Blagojevič, Benjamin Bizjan, Mojca Zupanc, Jurij Gostiša, Lidija Slemenik Perše, Urška Gradišar Centa, Blaž Stres, Uroš Novak, Blaž Likozar, Gašper Rak, and Sabina Kolbl Repinc

Subjects
Waste sludge, Hydrodynamic cavitation, Pinned disc, Rheology, Surface tension, Dewaterability, Chemistry, QD1-999, Acoustics. Sound, QC221-246
Abstract

Slightly acidic (pH 5.1) waste sludge with 4.7 % Total Solids (TS) was treated on a laboratory scale pined disc rotary generator of hydrodynamic cavitation (PD RGHC). Influence of four rotor discs with different number of cavitation generation units (CGUs) was investigated: 8-pins, 12-pins, 16-pins and 8-prism elements. The effect of hydrodynamic cavitation (HC) was investigated by analyzing rheological properties, surface tension, dewaterability, and particle size distribution. After subjecting the sludge to 30 cavitation passes, the dewatering ability of the sludge significantly decreased, resulting in a more than two-fold increase in Capillary Suction Time (CST). All regimes were successful in disintegrating particles to smaller sizes. A slight increase of sludge surface tension was measured post cavitation. Cavitated samples displayed a zero-shear viscosity, in contrast to the untreated sample, where viscosity noticeably increased as shear stress decreased. HC did not improve methane yield. Statistically significant correlations between physio-chemical properties and apparent viscosity at low shear stress were identified. Although there were no discernible statistical differences in sludge characteristics, some trends are visible among investigated CGU designs and warrant further research.

Published
2024
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34. The Effect of the Loading Frequency on the Dynamic Bending Strength of Spruce Wood

Author

Enej Lipovec Zupanc, Miha Humar, and Gorazd Fajdiga

Subjects
dynamic strength, frequency, fatigue, spruce, wood, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85
Abstract

Wood is increasingly being used in construction as an alternative to steel and concrete. As wood is an inhomogeneous material, this has a strong effect on its static and dynamic properties. When timber is used as a load-bearing component, there is a possibility that it will be exposed to unfavourable weather conditions (wind) or dynamic environments (vibrations), leading to fatigue of the material. In this article, the effects of load frequency and load magnitude on the durability of Norway spruce wood (Picea abies) were investigated. The frequencies of 5 and 10 Hz were compared at three load levels of 70%, 80% and 90% of the static breaking force. The research results show that the load magnitude has a major influence on the dynamic strength at the same fatigue frequency. Each increase in load means a lower dynamic strength of the spruce, which is reflected in the load cycles achieved. In addition, the dynamic properties of spruce wood deteriorate with an increasing loading frequency, which is more pronounced at higher loading forces. These test results are the basis for determining the Wöhler curve, which is required as input data for the material properties in numerical calculations to determine the durability of the material.

Published
2024
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36. Punzi-loss: A non-differentiable metric approximation for sensitivity optimisation in the search for new particles

Author

Feichtinger, P., Haigh, H., Inguglia, G., Kahn, J., Abudinén, F., Bertemes, M., Bilokin, S., Campajola, M., Casarosa, G., Cunliffe, S., Corona, L., De Nuccio, M., De Pietro, G., Dey, S., Eliachevitch, M., Ferber, T., Gemmler, J., Goldenzweig, P., Gottmann, A., Graziani, E., Hohmann, M., Humair, T., Keck, T., Komarov, I., Krohn, J. -F., Kuhr, T., Lacaprara, S., Lieret, K., Maiti, R., Martini, A., Meier, F., Metzner, F., Milesi, M., Park, S. -H., Prim, M., Pulvermacher, C., Ritter, M., Sato, Y., Schwanda, C., Sutcliffe, W., Tamponi, U., Tenchini, F., Urquijo, P., Zani, L., Žlebčík, R., and Zupanc, A.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

We present the novel implementation of a non-differentiable metric approximation and a corresponding loss-scheduling aimed at the search for new particles of unknown mass in high energy physics experiments. We call the loss-scheduling, based on the minimisation of a figure-of-merit related function typical of particle physics, a Punzi-loss function, and the neural network that utilises this loss function a Punzi-net. We show that the Punzi-net outperforms standard multivariate analysis techniques and generalises well to mass hypotheses for which it was not trained. This is achieved by training a single classifier that provides a coherent and optimal classification of all signal hypotheses over the whole search space. Our result constitutes a complementary approach to fully differentiable analyses in particle physics. We implemented this work using PyTorch and provide users full access to a public repository containing all the codes and a training example., Comment: submitted to EPJC

Published
2021
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37. $B$-flavor tagging at Belle II

Author

Abudinén, F., Akopov, N., Aloisio, A., Babu, V., Banerjee, Sw., Bauer, M., Bennett, J. V., Bernlochner, F. U., Bessner, M., Bettarini, S., Bilka, T., Bilokin, S., Biswas, D., Bodrov, D., Borah, J., Bračko, M., Branchini, P., Budano, A., Campajola, M., Casarosa, G., Cecchi, C., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Cho, H. -E., Cunliffe, S., De Nardo, G., De Pietro, G., de Sangro, R., Dey, S., Di Canto, A., Di Capua, F., Dong, T. V., Dujany, G., Ecker, P., Eliachevitch, M., Ferber, T., Forti, F., Ganiev, E., Gaz, A., Gelb, M., Gemmler, J., Godang, R., Goldenzweig, P., Graziani, E., Hara, K., Hershenhorn, A., Higuchi, T., Hill, E. C., Hohmann, M., Humair, T., Inguglia, G., Junkerkalefeld, H., Karl, R., Kato, Y., Keck, T., Kiesling, C., Kim, C. -H., Kohani, S., Komarov, I., Kraetzschmar, T. M. G., Križan, P., Krohn, J. F., Kuhr, T., Kumar, J., Kumara, K., Kurz, S., Lacaprara, S., La Licata, C., Laurenza, M., Lautenbach, K., Lee, S. C., Lieret, K., Gioi, L. Li, Liu, Q. Y., Longo, S., Maggiora, M., Manoni, E., Marinas, C., Martini, A., Meier, F., Merola, M., Metzner, F., Milesi, M., Miyabayashi, K., Mohanty, G. B., Mueller, F., Murphy, C., Oxford, E. R., Park, S. -H., Passeri, A., Pham, F., Piilonen, L. E., Pokharel, S., Prim, M. T., Pulvermacher, C., Rados, P., Ritter, M., Rostomyan, A., Sandilya, S., Santelj, L., Sato, Y., Schwartz, A. J., Sevior, M. E., Soffer, A., Spataro, S., Stroili, R., Sutcliffe, W., Tagnani, D., Takizawa, M., Tamponi, U., Tenchini, F., Torassa, E., Urquijo, P., Vitale, L., Yusa, Y., Zani, L., Zhou, Q. D., Žlebčík, R., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We report on new flavor tagging algorithms developed to determine the quark-flavor content of bottom ($B$) mesons at Belle II. The algorithms provide essential inputs for measurements of quark-flavor mixing and charge-parity violation. We validate and evaluate the performance of the algorithms using hadronic $B$ decays with flavor-specific final states reconstructed in a data set corresponding to an integrated luminosity of $62.8$ fb$^{-1}$, collected at the $\Upsilon$(4$S$) resonance with the Belle II detector at the SuperKEKB collider. We measure the total effective tagging efficiency to be $\varepsilon_{\rm eff} = \big(30.0 \pm 1.2(\text{stat}) \pm 0.4(\text{syst})\big)\%$ for a category-based algorithm and $\varepsilon_{\rm eff} = \big(28.8 \pm 1.2(\text{stat}) \pm 0.4(\text{syst})\big)\%$ for a deep-learning-based algorithm.

Published
2021
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38. Angular analysis of $B^+ \to \rho^+\rho^0$ decays reconstructed in 2019-2020 Belle II data

Author

Belle II collaboration, Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Ahlburg, P., Ahn, J. K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Ky, N. Anh, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Baehr, S., Bahinipati, S., Bakich, A. M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Beaulieu, A., Becker, J., Behera, P. K., Bender, M., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Brač, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Brown, D. N., Budano, A., Burmistrov, L., Bussino, S., Campajola, M., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Č, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Chen, Y. -T., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. -E., Cho, K., Cho, S. -J., Choi, S. -K., Choudhury, S., Cinabro, D., Corona, L., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Czank, T., Dash, N., Dattola, F., De La Cruz-Burelo, E., de Marino, G., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Deschamps, B., Destefanis, M., Dey, S., De Yta-Hernandez, A., Di Canto, A., Di Capua, F., Di Carlo, S., Dingfelder, J., Dolež, Z., Domí, I., Dong, T. V., Dort, K., Dossett, D., Dubey, S., Duell, S., Dujany, G., Eidelman, S., Eliachevitch, M., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fillinger, T., Finocchiaro, G., Fiore, S., Fischer, P., Fodor, A., Forti, F., Frey, A., Friedl, M., Fulsom, B. G., Gabriel, M., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gelb, M., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, K., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Herná, M., Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hollitt, S., Hotta, T., Hsu, C. -L., Hu, Y., Huang, K., Humair, T., Iijima, T., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jackson, P., Jacobs, W. W., Jaegle, I., Jaffe, D. E., Jang, E. -J., Jeandron, M., Jeon, H. B., Jia, S., Jin, Y., Joo, C., Joo, K. K., Junkerkalefeld, H., Kadenko, I., Kahn, J., Kakuno, H., Kaliyar, A. B., Kandra, J., Kang, K. H., Kapusta, P., Karl, R., Karyan, G., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Ketter, C., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. -H., Kim, D. Y., Kim, H. J., Kim, K. -H., Kim, K., Kim, S. -H., Kim, Y. -K., Kim, Y., Kimmel, T. D., Kindo, H., Kinoshita, K., Kirby, B., Kleinwort, C., Knysh, B., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalchuk, N., Kovalenko, E., Kraetzschmar, T. M. G., Krinner, F., Križ, P., Kroeger, R., Krohn, J. F., Krokovny, P., Krüger, H., Kuehn, W., Kuhr, T., Kumar, J., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kunigo, T., Kü, M., Kurz, S., Kuzmin, A., Kvasnič, P., Kwon, Y. -J., Lacaprara, S., Lai, Y. -T., La Licata, C., Lalwani, K., Lanceri, L., Lange, J. S., Laurenza, M., Lautenbach, K., Laycock, P. J., Diberder, F. R. Le, Lee, I. -S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. M., Li, C., Li, L. K., Li, S. X., Li, Y. B., Libby, J., Lieret, K., Gioi, L. Li, Lin, J., Liptak, Z., Liu, Q. Y., Liu, Z. A., Liventsev, D., Longo, S., Loos, A., Lu, P., Lubej, M., Lueck, T., Luetticke, F., Luo, T., Lyu, C., MacQueen, C., Maeda, Y., Maggiora, M., Maity, S., Manfredi, R., Manoni, E., Marcello, S., Marinas, C., Martini, A., Masuda, M., Matsuda, T., Matsuoka, K., Matvienko, D., McNeil, J., Meggendorfer, F., Mei, J. C., Meier, F., Merola, M., Metzner, F., Milesi, M., Miller, C., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Azmi, K., Mohanty, G. B., Moon, H., Moon, T., Grimaldo, J. A. Mora, Morii, T., Moser, H. -G., Mrvar, M., Mueller, F., Mü, F. J., Muller, Th., Muroyama, G., Murphy, C., Mussa, R., Nakagiri, K., Nakamura, I., Nakamura, K. R., Nakano, E., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Natochii, A., Nayak, M., Nazaryan, G., Neverov, D., Niebuhr, C., Niiyama, M., Ninkovic, J., Nisar, N. K., Nishida, S., Nishimura, K., Nishimura, M., Nouxman, M. H. A., Oberhof, B., Ogawa, K., Ogawa, S., Olsen, S. L., Onishchuk, Y., Ono, H., Onuki, Y., Oskin, P., Oxford, E. R., Ozaki, H., Pakhlov, P., Pakhlova, G., Paladino, A., Pang, T., Panta, A., Paoloni, E., Pardi, S., Park, H., Park, S. -H., Paschen, B., Passeri, A., Pathak, A., Patra, S., Paul, S., Pedlar, T. K., Peruzzi, I., Peschke, R., Pestotnik, R., Piccolo, M., Piilonen, L. E., Podesta-Lerma, P. L. M., Polat, G., Popov, V., Praz, C., Prell, S., Prencipe, E., Prim, M. T., Purohit, M. V., Rad, N., Rados, P., Raiz, S., Rasheed, R., Reif, M., Reiter, S., Remnev, M., Resmi, P. K., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Rizzuto, L. B., Robertson, S. H., Rodrí, D., Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sanders, D. A., Sandilya, S., Sangal, A., Santelj, L., Sartori, P., Sasaki, J., Sato, Y., Savinov, V., Scavino, B., Schram, M., Schreeck, H., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seddon, R. M., Seino, Y., Selce, A., Senyo, K., Seong, I. S., Serrano, J., Sevior, M. E., Sfienti, C., Shebalin, V., Shen, C. P., Shibuya, H., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Skambraks, S., Smith, K., Sobie, R. J., Soffer, A., Sokolov, A., Soloviev, Y., Solovieva, E., Spataro, S., Spruck, B., Starič, M., Stefkova, S., Stottler, Z. S., Stroili, R., Strube, J., Stypula, J., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sutcliffe, W., Suzuki, K., Suzuki, S. Y., Svidras, H., Tabata, M., Takahashi, M., Takizawa, M., Tamponi, U., Tanaka, S., Tanida, K., Tanigawa, H., Taniguchi, N., Tao, Y., Taras, P., Tenchini, F., Tonelli, D., Torassa, E., Trabelsi, K., Tsuboyama, T., Tsuzuki, N., Uchida, M., Ueda, I., Uehara, S., Ueno, T., Uglov, T., Unger, K., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y. V., Vahsen, S. E., van Tonder, R., Varner, G. S., Varvell, K. E., Vinokurova, A., Vitale, L., Vorobyev, V., Vossen, A., Wach, B., Waheed, E., Wakeling, H. M., Wan, K., Abdullah, W. Wan, Wang, B., Wang, C. H., Wang, M. -Z., Wang, X. L., Warburton, A., Watanabe, M., Watanuki, S., Webb, J., Wehle, S., Welsch, M., Wessel, C., Wiechczynski, J., Wieduwilt, P., Windel, H., Won, E., Wu, L. J., Xu, X. P., Yabsley, B. D., Yamada, S., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yeo, I., Yin, J. H., Yonenaga, M., Yook, Y. M., Yoshihara, K., Yoshinobu, T., Yuan, C. Z., Yuan, G., Yusa, Y., Zani, L., Zhang, J. Z., Zhang, Y., Zhang, Z., Zhilich, V., Zhou, J., Zhou, Q. D., Zhou, X. Y., Zhukova, V. I., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

We report on the first Belle II measurement of the branching fraction ($\mathcal{B}$) and longitudinal polarization fraction ($f_L$) of $B^+\to \rho^+\rho^0$ decays. We reconstruct $B^+\to \rho^+(\to \pi^+\pi^0(\to \gamma\gamma))\rho^0(\to \pi^+\pi^-)$ decays in a sample of SuperKEKB electron-positron collisions collected by the Belle II experiment in 2019 and 2020 at the $\Upsilon$(4S) resonance and corresponding to $62.8$ fb$^{-1}$ of integrated luminosity. We fit the distributions of the difference between expected and observed $B$ candidate energy, continuum-suppression variable, dipion masses, and angular distributions of the resulting samples, to determine a signal yield of $104\pm16$ events. The signal yields are corrected for efficiencies determined from simulation and control data samples to obtain $\mathcal{B}(B^+ \to \rho^+\rho^0) = [20.6 \pm 3.2(\rm stat) \pm 4.0(\rm syst)]\times 10^{-6}$, and $f_L(B^+ \to \rho^+\rho^0) = 0.936 ^{+0.049}_{-0.041}(\rm stat)\pm 0.021(\rm syst)$. This first Belle II $B^+ \to \rho^+\rho^0$ angular analysis yields results compatible with previous determinations, and indicates Belle II performance superior to early Belle results.

Published
2021

39. Measurements of branching fractions and CP-violating charge asymmetries in multibody charmless $B$ decays reconstructed in 2019-2020 Belle II data

Author

Belle II collaboration, Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Ahlburg, P., Ahn, J. K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Ky, N. Anh, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Baehr, S., Bahinipati, S., Bakich, A. M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Beaulieu, A., Becker, J., Behera, P. K., Bender, M., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Brač, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Brown, D. N., Budano, A., Burmistrov, L., Bussino, S., Campajola, M., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Č, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Chen, Y. -T., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. -E., Cho, K., Cho, S. -J., Choi, S. -K., Choudhury, S., Cinabro, D., Corona, L., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Czank, T., Dash, N., Dattola, F., De La Cruz-Burelo, E., de Marino, G., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Deschamps, B., Destefanis, M., Dey, S., De Yta-Hernandez, A., Di Canto, A., Di Capua, F., Di Carlo, S., Dingfelder, J., Dolež, Z., Domí, I., Dong, T. V., Dort, K., Dossett, D., Dubey, S., Duell, S., Dujany, G., Eidelman, S., Eliachevitch, M., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fillinger, T., Finocchiaro, G., Fiore, S., Fischer, P., Fodor, A., Forti, F., Frey, A., Friedl, M., Fulsom, B. G., Gabriel, M., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gelb, M., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, K., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Herná, M., Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hollitt, S., Hotta, T., Hsu, C. -L., Hu, Y., Huang, K., Humair, T., Iijima, T., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jackson, P., Jacobs, W. W., Jaegle, I., Jaffe, D. E., Jang, E. -J., Jeandron, M., Jeon, H. B., Jia, S., Jin, Y., Joo, C., Joo, K. K., Junkerkalefeld, H., Kadenko, I., Kahn, J., Kakuno, H., Kaliyar, A. B., Kandra, J., Kang, K. H., Kapusta, P., Karl, R., Karyan, G., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Ketter, C., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. -H., Kim, D. Y., Kim, H. J., Kim, K. -H., Kim, K., Kim, S. -H., Kim, Y. -K., Kim, Y., Kimmel, T. D., Kindo, H., Kinoshita, K., Kirby, B., Kleinwort, C., Knysh, B., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalchuk, N., Kovalenko, E., Kraetzschmar, T. M. G., Krinner, F., Križ, P., Kroeger, R., Krohn, J. F., Krokovny, P., Krüger, H., Kuehn, W., Kuhr, T., Kumar, J., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kunigo, T., Kü, M., Kurz, S., Kuzmin, A., Kvasnič, P., Kwon, Y. -J., Lacaprara, S., Lai, Y. -T., La Licata, C., Lalwani, K., Lanceri, L., Lange, J. S., Laurenza, M., Lautenbach, K., Laycock, P. J., Diberder, F. R. Le, Lee, I. -S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. M., Li, C., Li, L. K., Li, S. X., Li, Y. B., Libby, J., Lieret, K., Gioi, L. Li, Lin, J., Liptak, Z., Liu, Q. Y., Liu, Z. A., Liventsev, D., Longo, S., Loos, A., Lu, P., Lubej, M., Lueck, T., Luetticke, F., Luo, T., Lyu, C., MacQueen, C., Maeda, Y., Maggiora, M., Maity, S., Manfredi, R., Manoni, E., Marcello, S., Marinas, C., Martini, A., Masuda, M., Matsuda, T., Matsuoka, K., Matvienko, D., McNeil, J., Meggendorfer, F., Mei, J. C., Meier, F., Merola, M., Metzner, F., Milesi, M., Miller, C., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Azmi, K., Mohanty, G. B., Moon, H., Moon, T., Grimaldo, J. A. Mora, Morii, T., Moser, H. -G., Mrvar, M., Mueller, F., Mü, F. J., Muller, Th., Muroyama, G., Murphy, C., Mussa, R., Nakagiri, K., Nakamura, I., Nakamura, K. R., Nakano, E., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Natochii, A., Nayak, M., Nazaryan, G., Neverov, D., Niebuhr, C., Niiyama, M., Ninkovic, J., Nisar, N. K., Nishida, S., Nishimura, K., Nishimura, M., Nouxman, M. H. A., Oberhof, B., Ogawa, K., Ogawa, S., Olsen, S. L., Onishchuk, Y., Ono, H., Onuki, Y., Oskin, P., Oxford, E. R., Ozaki, H., Pakhlov, P., Pakhlova, G., Paladino, A., Pang, T., Panta, A., Paoloni, E., Pardi, S., Park, H., Park, S. -H., Paschen, B., Passeri, A., Pathak, A., Patra, S., Paul, S., Pedlar, T. K., Peruzzi, I., Peschke, R., Pestotnik, R., Piccolo, M., Piilonen, L. E., Podesta-Lerma, P. L. M., Polat, G., Popov, V., Praz, C., Prell, S., Prencipe, E., Prim, M. T., Purohit, M. V., Rad, N., Rados, P., Raiz, S., Rasheed, R., Reif, M., Reiter, S., Remnev, M., Resmi, P. K., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Rizzuto, L. B., Robertson, S. H., Rodrí, D., Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sanders, D. A., Sandilya, S., Sangal, A., Santelj, L., Sartori, P., Sasaki, J., Sato, Y., Savinov, V., Scavino, B., Schram, M., Schreeck, H., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seddon, R. M., Seino, Y., Selce, A., Senyo, K., Seong, I. S., Serrano, J., Sevior, M. E., Sfienti, C., Shebalin, V., Shen, C. P., Shibuya, H., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Skambraks, S., Smith, K., Sobie, R. J., Soffer, A., Sokolov, A., Soloviev, Y., Solovieva, E., Spataro, S., Spruck, B., Starič, M., Stefkova, S., Stottler, Z. S., Stroili, R., Strube, J., Stypula, J., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sutcliffe, W., Suzuki, K., Suzuki, S. Y., Svidras, H., Tabata, M., Takahashi, M., Takizawa, M., Tamponi, U., Tanaka, S., Tanida, K., Tanigawa, H., Taniguchi, N., Tao, Y., Taras, P., Tenchini, F., Tonelli, D., Torassa, E., Trabelsi, K., Tsuboyama, T., Tsuzuki, N., Uchida, M., Ueda, I., Uehara, S., Ueno, T., Uglov, T., Unger, K., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y. V., Vahsen, S. E., van Tonder, R., Varner, G. S., Varvell, K. E., Vinokurova, A., Vitale, L., Vorobyev, V., Vossen, A., Wach, B., Waheed, E., Wakeling, H. M., Wan, K., Abdullah, W. Wan, Wang, B., Wang, C. H., Wang, M. -Z., Wang, X. L., Warburton, A., Watanabe, M., Watanuki, S., Webb, J., Wehle, S., Welsch, M., Wessel, C., Wiechczynski, J., Wieduwilt, P., Windel, H., Won, E., Wu, L. J., Xu, X. P., Yabsley, B. D., Yamada, S., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yeo, I., Yin, J. H., Yonenaga, M., Yook, Y. M., Yoshihara, K., Yoshinobu, T., Yuan, C. Z., Yuan, G., Yusa, Y., Zani, L., Zhang, J. Z., Zhang, Y., Zhang, Z., Zhilich, V., Zhou, J., Zhou, Q. D., Zhou, X. Y., Zhukova, V. I., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

We report on measurements of branching fractions ($\mathcal{B}$) and CP-violating charge asymmetries ($\mathcal{A}_{\rm CP}$) of multibody charmless $B$ decays reconstructed by the Belle II experiment at the SuperKEKB electron-positron collider. We use a sample of collisions collected in 2019 and 2020 at the $\Upsilon(4S)$ resonance and corresponding to $62.8$ fb$^{-1}$ of integrated luminosity. We use simulation to determine optimized event selections. The $\Delta E$ and $M_{\rm bc}$ distributions of the resulting samples are fit to determine signal yields of approximately 690, 840, and 380 decays for the channels $B^+ \to K^+K^-K^+$, $B^+ \to K^+\pi^-\pi^+$, and $B^0 \to K^+\pi^-\pi^0$, respectively. These yields are corrected for efficiencies determined from simulation and control data samples to obtain $\mathcal{B}(B^+ \to K^+K^-K^+) = [35.8 \pm 1.6(\rm stat) \pm 1.4 (\rm syst)]\times 10^{-6}$, $\mathcal{B}(B^+ \to K^+\pi^-\pi^+) = [67.0 \pm 3.3 (\rm stat)\pm 2.3 (\rm syst)]\times 10^{-6}$, $\mathcal{B}(B^0 \to K^+\pi^-\pi^0) = [38.1 \pm 3.5 (\rm stat)\pm 3.9 (\rm syst)]\times 10^{-6}$, $\mathcal{A}_{\rm CP}(B^+ \to K^+K^-K^+) = -0.103 \pm 0.042(\rm stat) \pm 0.020 (\rm syst)$, $\mathcal{A}_{\rm CP}(B^+ \to K^+\pi^-\pi^+) = -0.010 \pm 0.050 (\rm stat)\pm 0.021(\rm syst)$, and $\mathcal{A}_{\rm CP}(B^0 \to K^+\pi^-\pi^0) = 0.207 \pm 0.088 (\rm stat)\pm 0.011(\rm syst)$. Results are consistent with previous measurements and demonstrate detector performance comparable with the best Belle results.

Published
2021

40. Identifying risk factors for blood culture negative infective endocarditis: An international ID-IRI study

Author

Filiz, Mine, Erdem, Hakan, Ankarali, Handan, Puca, Edmond, Ruch, Yvon, Santos, Lurdes, Fasciana, Teresa, Giammanco, Anna M., Ghanem-Zoubi, Nesrin, Argemi, Xavier, Hansmann, Yves, Guner, Rahmet, Tonziello, Gilda, Mazzucotelli, Jean-Philippe, Como, Najada, Kose, Sukran, Batirel, Ayse, Inan, Asuman, Tulek, Necla, Pekok, Abdullah Umut, Khan, Ejaz Ahmed, Iyisoy, Atilla, Meric-Koc, Meliha, Kaya-Kalem, Ayse, Martins, Pedro Palma, Hasanoglu, Imran, Silva-Pinto, André, Oztoprak, Nefise, Duro, Raquel, Almajid, Fahad, Dogan, Mustafa, Dauby, Nicolas, Gunst, Jesper Damsgaard, Tekin, Recep, Konopnicki, Deborah, Petrosillo, Nicola, Bozkurt, Ilkay, Al Ramahi, Jamal Wadi, Popescu, Corneliu, Balkan, Ilker Inanc, Ozer-Balin, Safak, Zupanc, Tatjana Lejko, Cascio, Antonio, Dumitru, Irina Magdalena, Erdem, Aysegul, Ersoz, Gulden, Tasbakan, Meltem, Ajamieh, Oday Abu, Sirmatel, Fatma, Florescu, Simin, Gulsun, Serda, Ozkaya, Hacer Deniz, Sari, Sema, Tosun, Selma, Avci, Meltem, Cag, Yasemin, Celebi, Guven, Sagmak-Tartar, Ayse, Karakus, Sumeyra, Sener, Alper, Dedej, Arjeta, Oncu, Serkan, Del Vecchio, Rosa Fontana, Ozturk-Engin, Derya, and Agalar, Canan

Published
2024
Full Text
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45. Study of $\chi_{bJ}(nP) \rightarrow \omega \Upsilon(1S)$ at Belle

Author

Belle Collaboration, Abdesselam, A., Adachi, I., Adamczyk, K., Ahn, J. K., Aihara, H., Said, S. Al, Arinstein, K., Arita, Y., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Babu, V., Bahinipati, S., Bakich, A. M., Ban, Y., Barberio, E., Barrett, M., Bauer, M., Behera, P., Beleño, C., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Besson, D., Bhardwaj, V., Bhuyan, B., Bilka, T., Bilokin, S., Biswal, J., Bloomfield, T., Bobrov, A., Bodrov, D., Bondar, A., Bonvicini, G., Bozek, A., Bra\v, M., Branchini, P., Braun, N., Breibeck, F., Browder, T. E., Budano, A., Campajola, M., Cao, L., Caria, G., \v, D., Chang, M. -C., Chang, P., Chao, Y., Chekelian, V., Chen, A., Chen, K. -F., Chen, Y., Chen, Y. -T., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S. -J., Chobanova, V., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Das, S., Dash, N., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Dole\v, Z., Dong, T. V., Dossett, D., Drásal, Z., Dubey, S., Ecker, P., Eidelman, S., Epifanov, D., Feindt, M., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Goldenzweig, P., Golob, B., Gong, G., Graziani, E., Greenwald, D., Perdekamp, M. Grosse, Grygier, J., Gu, T., Guan, Y., Gudkova, K., Guido, E., Guo, H., Haba, J., Hadjivasiliou, C., Halder, S., Hamer, P., Hara, K., Hara, T., Hartbrich, O., Hasenbusch, J., Hayasaka, K., Hayashii, H., Hazra, S., He, X. H., Heck, M., Hedges, M. T., Heffernan, D., Heider, M., Heller, A., Villanueva, M. Hernandez, Higuchi, T., Hirose, S., Hoshina, K., Hou, W. -S., Hsiung, Y. B., Hsu, C. -L., Huang, K., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jacobs, W. W., Jaegle, I., Jang, E. -J., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, C. W., Joo, K. K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A. B., Kang, J. H., Kang, K. H., Kapusta, P., Karyan, G., Kataoka, S. U., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, H. -J., Kim, J. B., Kim, K. -H., Kim, K. T., Kim, S. H., Kim, S. K., Kim, Y. J., Kim, Y. -K., Kimmel, T., Kindo, H., Kinoshita, K., Kleinwort, C., Klucar, J., Kobayashi, N., Kody\v, P., Koga, Y., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Kri\v, P., Kroeger, R., Krohn, J. -F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kurihara, E., Kuroki, Y., Kuzmin, A., Kvasni\v, P., Kwon, Y. -J., Lai, Y. -T., Lalwani, K., Lange, J. S., Laurenza, M., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C. H., Li, H., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Metzner, F., Miyabayashi, K., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Moon, T. J., Mori, T., Morii, T., Moser, H. -G., Mrvar, M., Müller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K. R., Nakano, E., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Ng, C., Niebuhr, C., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Ohshima, T., Okuno, S., Olsen, S. L., Ono, H., Onuki, Y., Oskin, P., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Panzenböck, E., Pardi, S., Park, C. -S., Park, C. W., Park, H., Park, K. S., Park, S. -H., Passeri, A., Patra, S., Paul, S., Pedlar, T. K., Peng, T., Pes\', L., Pestotnik, R., Peters, M., Piilonen, L. E., Podobnik, T., Popov, V., Prasanth, K., Prencipe, E., Prim, M. T., Prothmann, K., Purohit, M. V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P. K., Ribe\v, E., Ritter, M., R\", M., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Salehi, M., Sandilya, S., Santel, D., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schmolz, P., Schneider, O., Schnell, G., Schram, M., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I. S., Sevior, M. E., Shang, L., Shapkin, M., Sharma, C., Shebalin, V., Shen, C. P., Shibata, T. -A., Shibuya, H., Shinomiya, S., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Smith, K., Sokolov, A., Soloviev, Y., Solovieva, E., Stani\v, S., Stari\v, M., Steder, M., Stottler, Z. S., Strube, J. F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Suzuki, K., Suzuki, S., Suzuki, S. Y., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Taniguchi, N., Tao, Y., Taylor, G. N., Tenchini, F., Teramoto, Y., Thampi, A., Tiwary, R., Trabelsi, K., Tsuboyama, T., Uchida, M., Ueda, I., Uehara, S., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Vanhoefer, P., Varner, G., Varvell, K. E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Waheed, E., Wang, B., Wang, C. H., Wang, D., Wang, E., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Werbycka, O., Widmann, E., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yamada, S., Yamamoto, H., Yamashita, Y., Yan, W., Yang, S. B., Yashchenko, S., Ye, H., Yelton, J., Yin, J. H., Yook, Y., Yuan, C. Z., Yusa, Y., Zhang, C. C., Zhang, J., Zhang, L. M., Zhang, Z. P., Zhao, L., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., and Zwahlen, N.

Subjects
High Energy Physics - Experiment
Abstract

We report results from a study of hadronic transitions of the $\chi_{bJ}(nP)$ states of bottomonium at Belle. The $P$-wave states are reconstructed in transitions to the $\Upsilon(1S)$ with the emission of an $\omega$ meson. The transitions of the $n=2$ triplet states provide a unique laboratory in which to study nonrelativistic quantum chromodynamics, as the kinematic threshold for production of an $\omega$ and $\Upsilon(1S)$ lies between the $J=0$ and $J=1$ states. A search for the $\chi_{bJ}(3P)$ states is also reported.

Published
2021

46. Measurement of the branching fraction for $B^{0} \rightarrow \pi^{0} \pi^{0}$ decays reconstructed in 2019-2020 Belle II data

Author

Belle II Collaboration, Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Ahlburg, P., Ahn, J. K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Ky, N. Anh, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Baehr, S., Bahinipati, S., Bakich, A. M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Beaulieu, A., Becker, J., Behera, P. K., Bender, M., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Brown, D. N., Budano, A., Burmistrov, L., Bussino, S., Campajola, M., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Červenkov, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Chen, Y. -T., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. -E., Cho, K., Cho, S. -J., Choi, S. -K., Choudhury, S., Cinabro, D., Corona, L., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Czank, T., Dash, N., Dattola, F., De La Cruz-Burelo, E., de Marino, G., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Deschamps, B., Destefanis, M., Dey, S., De Yta-Hernandez, A., Di Canto, A., Di Capua, F., Di Carlo, S., Dingfelder, J., Doležal, Z., Jiménez, I. Domínguez, Dong, T. V., Dort, K., Dossett, D., Dubey, S., Duell, S., Dujany, G., Eidelman, S., Eliachevitch, M., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fillinger, T., Finocchiaro, G., Fiore, S., Fischer, P., Fodor, A., Forti, F., Frey, A., Friedl, M., Fulsom, B. G., Gabriel, M., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gelb, M., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, K., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Villanueva, M. Hernández, Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hollitt, S., Hotta, T., Hsu, C. -L., Hu, Y., Huang, K., Humair, T., Iijima, T., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jackson, P., Jacobs, W. W., Jaegle, I., Jaffe, D. E., Jang, E. -J., Jeandron, M., Jeon, H. B., Jia, S., Jin, Y., Joo, C., Joo, K. K., Junkerkalefeld, H., Kadenko, I., Kahn, J., Kakuno, H., Kaliyar, A. B., Kandra, J., Kang, K. H., Kapusta, P., Karl, R., Karyan, G., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Ketter, C., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. -H., Kim, D. Y., Kim, H. J., Kim, K. -H., Kim, K., Kim, S. -H., Kim, Y. -K., Kim, Y., Kimmel, T. D., Kindo, H., Kinoshita, K., Kirby, B., Kleinwort, C., Knysh, B., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalchuk, N., Kovalenko, E., Kraetzschmar, T. M. G., Krinner, F., Križan, P., Kroeger, R., Krohn, J. F., Krokovny, P., Krüger, H., Kuehn, W., Kuhr, T., Kumar, J., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kunigo, T., Künzel, M., Kurz, S., Kuzmin, A., Kvasnička, P., Kwon, Y. -J., Lacaprara, S., Lai, Y. -T., La Licata, C., Lalwani, K., Lanceri, L., Lange, J. S., Laurenza, M., Lautenbach, K., Laycock, P. J., Diberder, F. R. Le, Lee, I. -S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. M., Li, C., Li, C. -H., Li, L. K., Li, S. X., Li, Y. B., Libby, J., Lieret, K., Gioi, L. Li, Lin, J., Liptak, Z., Liu, Q. Y., Liu, Z. A., Liventsev, D., Longo, S., Loos, A., Lu, P., Lubej, M., Lueck, T., Luetticke, F., Luo, T., Lyu, C., MacQueen, C., Maeda, Y., Maggiora, M., Maity, S., Manfredi, R., Manoni, E., Marcello, S., Marinas, C., Martini, A., Masuda, M., Matsuda, T., Matsuoka, K., Matvienko, D., McNeil, J., Meggendorfer, F., Mei, J. C., Meier, F., Merola, M., Metzner, F., Milesi, M., Miller, C., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Azmi, K., Mohanty, G. B., Moon, H., Moon, T., Grimaldo, J. A. Mora, Morii, T., Moser, H. -G., Mrvar, M., Mueller, F., Müller, F. J., Muller, Th., Muroyama, G., Murphy, C., Mussa, R., Nakagiri, K., Nakamura, I., Nakamura, K. R., Nakano, E., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Natochii, A., Nayak, M., Nazaryan, G., Neverov, D., Niebuhr, C., Niiyama, M., Ninkovic, J., Nisar, N. K., Nishida, S., Nishimura, K., Nishimura, M., Nouxman, M. H. A., Oberhof, B., Ogawa, K., Ogawa, S., Olsen, S. L., Onishchuk, Y., Ono, H., Onuki, Y., Oskin, P., Oxford, E. R., Ozaki, H., Pakhlov, P., Pakhlova, G., Paladino, A., Pang, T., Panta, A., Paoloni, E., Pardi, S., Park, H., Park, S. -H., Paschen, B., Passeri, A., Pathak, A., Patra, S., Paul, S., Pedlar, T. K., Peruzzi, I., Peschke, R., Pestotnik, R., Pham, F., Piccolo, M., Piilonen, L. E., Podesta-Lerma, P. L. M., Polat, G., Popov, V., Praz, C., Prell, S., Prencipe, E., Prim, M. T., Purohit, M. V., Rad, N., Rados, P., Raiz, S., Rasheed, R., Reif, M., Reiter, S., Remnev, M., Resmi, P. K., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Rizzuto, L. B., Robertson, S. H., Pérez, D. Rodríguez, Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sanders, D. A., Sandilya, S., Sangal, A., Santelj, L., Sartori, P., Sasaki, J., Sato, Y., Savinov, V., Scavino, B., Schram, M., Schreeck, H., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seddon, R. M., Seino, Y., Selce, A., Senyo, K., Seong, I. S., Serrano, J., Sevior, M. E., Sfienti, C., Shebalin, V., Shen, C. P., Shibuya, H., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Skambraks, S., Smith, K., Sobie, R. J., Soffer, A., Sokolov, A., Soloviev, Y., Solovieva, E., Spataro, S., Spruck, B., Starič, M., Stefkova, S., Stottler, Z. S., Stroili, R., Strube, J., Stypula, J., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sutcliffe, W., Suzuki, K., Suzuki, S. Y., Svidras, H., Tabata, M., Takahashi, M., Takizawa, M., Tamponi, U., Tanaka, S., Tanida, K., Tanigawa, H., Taniguchi, N., Tao, Y., Taras, P., Tenchini, F., Tonelli, D., Torassa, E., Trabelsi, K., Tsuboyama, T., Tsuzuki, N., Uchida, M., Ueda, I., Uehara, S., Ueno, T., Uglov, T., Unger, K., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y. V., Vahsen, S. E., van Tonder, R., Varner, G. S., Varvell, K. E., Vinokurova, A., Vitale, L., Vorobyev, V., Vossen, A., Wach, B., Waheed, E., Wakeling, H. M., Wan, K., Abdullah, W. Wan, Wang, B., Wang, C. H., Wang, M. -Z., Wang, X. L., Warburton, A., Watanabe, M., Watanuki, S., Webb, J., Wehle, S., Welsch, M., Wessel, C., Wiechczynski, J., Wieduwilt, P., Windel, H., Won, E., Wu, L. J., Xu, X. P., Yabsley, B. D., Yamada, S., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yeo, I., Yin, J. H., Yonenaga, M., Yook, Y. M., Yoshihara, K., Yoshinobu, T., Yuan, C. Z., Yuan, G., Yusa, Y., Zani, L., Zhang, J. Z., Zhang, Y., Zhang, Z., Zhilich, V., Zhou, J., Zhou, Q. D., Zhou, X. Y., Zhukova, V. I., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We report the first reconstruction of the $B^{0} \to \pi^{0} \pi^{0}$ decay mode at Belle II using samples of 2019 and 2020 data that correspond to 62.8 fb$^{-1}$ of integrated luminosity. We find $14.0^{+6.8}_{-5.6}$ signal decays, corresponding to a significance of 3.4 standard deviations and determine a branching ratio of $\mathcal{B}(B^{0} \rightarrow \pi^{0} \pi^{0}) = [0.98^{+0.48}_{-0.39} \pm 0.27] \times 10^{-6}$. The results agree with previous determinations and contribute important information to an early assessment of detector performance and Belle II's potential for future determinations of $\alpha/\phi_2$ using $B \rightarrow \pi \pi$ modes., Comment: 19 pages, 4 figures. Supporting material for Moriond 2021 conference

Published
2021

47. Rediscovery of $B^0\to J\mskip 1mu / \psi\mskip 2mu K^0_{\scriptscriptstyle L}$ at Belle II

Author

Belle II Collaboration, Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Ahlburg, P., Ahn, J. K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Ky, N. Anh, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Baehr, S., Bahinipati, S., Bakich, A. M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Beaulieu, A., Becker, J., Behera, P. K., Bender, M., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Brown, D. N., Budano, A., Burmistrov, L., Bussino, S., Campajola, M., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Červenkov, D., Chang, M. C., Chang, P., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Chen, Y. T., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. E., Cho, K., Cho, S. J., Choi, S. K., Choudhury, S., Cinabro, D., Corona, L., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Czank, T., Dash, N., Dattola, F., De La Cruz-Burelo, E., de Marino, G., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Deschamps, B., Destefanis, M., Dey, S., De Yta-Hernandez, A., Di Canto, A., Di Capua, F., Di Carlo, S., Dingfelder, J., Doležal, Z., Jiménez, I. Domínguez, Dong, T. V., Dort, K., Dossett, D., Dubey, S., Duell, S., Dujany, G., Eidelman, S., Eliachevitch, M., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fillinger, T., Finocchiaro, G., Fiore, S., Fioroni, V., Fischer, P., Fodor, A., Forti, F., Frey, A., Friedl, M., Fulsom, B. G., Gabriel, M., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gelb, M., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Guan, Y., Hadjivasiliou, C., Halder, S., Hara, K., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Villanueva, M. Hernández, Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hollitt, S., Hotta, T., Hsu, C. L., Hu, Y., Huang, K., Humair, T., Iijima, T., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jackson, P., Jacobs, W. W., Jaegle, I., Jaffe, D. E., Jang, E. J., Jeandron, M., Jeon, H. B., Jia, S., Jin, Y., Joo, C., Joo, K. K., Junkerkalefeld, H., Kadenko, I., Kahn, J., Kakuno, H., Kaliyar, A. B., Kandra, J., Kang, K. H., Kapusta, P., Karl, R., Karyan, G., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Ketter, C., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, K. H., Kim, K., Kim, S. H., Kim, Y. K., Kim, Y., Kimmel, T. D., Kindo, H., Kinoshita, K., Kirby, B., Kleinwort, C., Knysh, B., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korpar, S., Kovalchuk, N., Kraetzschmar, T. M. G., Krinner, F., Križan, P., Kroeger, R., Krohn, J. F., Krokovny, P., Krüger, H., Kuehn, W., Kuhr, T., Kumar, J., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kunigo, T., Künzel, M., Kurz, S., Kuzmin, A., Kvasnička, P., Kwon, Y. J., Lacaprara, S., Lai, Y. T., La Licata, C., Lalwani, K., Lanceri, L., Lange, J. S., Lautenbach, K., Laycock, P. J., Diberder, F. R. Le, Lee, I. S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. M., Li, C., Li, L. K., Li, S. X., Li, Y. B., Libby, J., Lieret, K., Gioi, L. Li, Lin, J., Liptak, Z., Liu, Q. Y., Liu, Z. A., Liventsev, D., Longo, S., Loos, A., Lu, P., Lubej, M., Lueck, T., Luetticke, F., Luo, T., Lyu, C., MacQueen, C., Maeda, Y., Maggiora, M., Maity, S., Manfredi, R., Manoni, E., Marcello, S., Marinas, C., Martini, A., Masuda, M., Matsuda, T., Matsuoka, K., Matvienko, D., McNeil, J., Meggendorfer, F., Mei, J. C., Meier, F., Merola, M., Metzner, F., Milesi, M., Miller, C., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Azmi, K., Mohanty, G. B., Moon, H., Moon, T., Grimaldo, J. A. Mora, Morii, T., Moser, H. G., Mrvar, M., Mueller, F., Müller, F. J., Muller, Th., Muroyama, G., Murphy, C., Mussa, R., Nakagiri, K., Nakamura, I., Nakamura, K. R., Nakano, E., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Natochii, A., Nayak, M., Nazaryan, G., Neverov, D., Niebuhr, C., Niiyama, M., Ninkovic, J., Nisar, N. K., Nishida, S., Nishimura, K., Nishimura, M., Nouxman, M. H. A., Oberhof, B., Ogawa, K., Ogawa, S., Olsen, S. L., Onishchuk, Y., Ono, H., Onuki, Y., Oskin, P., Oxford, E. R., Ozaki, H., Pakhlov, P., Pakhlova, G., Paladino, A., Pang, T., Panta, A., Paoloni, E., Pardi, S., Park, H., Park, S. H., Paschen, B., Passeri, A., Pathak, A., Patra, S., Paul, S., Pedlar, T. K., Peruzzi, I., Peschke, R., Pestotnik, R., Piccolo, M., Piilonen, L. E., Podesta-Lerma, P. L. M., Polat, G., Popov, V., Praz, C., Prell, S., Prencipe, E., Prim, M. T., Purohit, M. V., Rad, N., Rados, P., Raiz, S., Rasheed, R., Reif, M., Reiter, S., Remnev, M., Resmi, P. K., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Rizzuto, L. B., Robertson, S. H., Pérez, D. Rodríguez, Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sanders, D. A., Sandilya, S., Sangal, A., Santelj, L., Sartori, P., Sasaki, J., Sato, Y., Savinov, V., Scavino, B., Schram, M., Schreeck, H., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seddon, R. M., Seino, Y., Selce, A., Senyo, K., Seong, I. S., Serrano, J., Sevior, M. E., Sfienti, C., Shebalin, V., Shen, C. P., Shibuya, H., Shiu, J. G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Skambraks, S., Smith, K., Sobie, R. J., Soffer, A., Sokolov, A., Soloviev, Y., Solovieva, E., Spataro, S., Spruck, B., Starič, M., Stefkova, S., Stottler, Z. S., Stroili, R., Strube, J., Stypula, J., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sutcliffe, W., Suzuki, K., Suzuki, S. Y., Svidras, H., Tabata, M., Takahashi, M., Takizawa, M., Tamponi, U., Tanaka, S., Tanida, K., Tanigawa, H., Taniguchi, N., Tao, Y., Taras, P., Tenchini, F., Tonelli, D., Torassa, E., Trabelsi, K., Tsuboyama, T., Tsuzuki, N., Uchida, M., Ueda, I., Uehara, S., Ueno, T., Uglov, T., Unger, K., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y. V., Vahsen, S. E., van Tonder, R., Varner, G. S., Varvell, K. E., Vinokurova, A., Vitale, L., Vorobyev, V., Vossen, A., Wach, B., Waheed, E., Wakeling, H. M., Wan, K., Abdullah, W. Wan, Wang, B., Wang, C. H., Wang, M. Z., Wang, X. L., Warburton, A., Watanabe, M., Watanuki, S., Webb, J., Wehle, S., Welsch, M., Wessel, C., Wiechczynski, J., Wieduwilt, P., Windel, H., Won, E., Wu, L. J., Xu, X. P., Yabsley, B., Yamada, S., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yeo, I., Yin, J. H., Yonenaga, M., Yook, Y. M., Yoshihara, K., Yoshinobu, T., Yuan, C. Z., Yuan, G., Yusa, Y., Zani, L., Zhang, J. Z., Zhang, Y., Zhang, Z., Zhilich, V., Zhou, Q. D., Zhou, X. Y., Zhukova, V. I., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We present preliminary results on the reconstruction of the $B^0\to J\mskip 1mu / \psi\mskip 2mu K^0_{\scriptscriptstyle L}$ decay, where $J\mskip 1mu / \psi\mskip 2mu\to\mu^+\mu^-$ or $e^+e^-$. Using a dataset corresponding to a luminosity of $62.8\pm0.6\mbox{fb}^{-1}$ collected by the Belle II experiment at the SuperKEKB asymmetric energy $e^+e^-$ collider, we measure a total of $267\pm21$ candidates with $J\mskip 1mu / \psi\mskip 2mu\to\mu^+\mu^-$ and $226\pm20$ with with $J\mskip 1mu / \psi\mskip 2mu\to e^+e^-$. The quoted errors are statistical only., Comment: 15 pages, 4 figures

Published
2021

48. Measurements of branching fractions and direct CP asymmetries in $B^{0}\to K^{+} \pi^{-}$, $B^+ \to K_{\rm S}^0\pi^+$ and $B^0 \to \pi^+\pi^-$ using 2019 and 2020 data

Author

Belle II Collaboration, Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Ahlburg, P., Ahn, J. K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Ky, N. Anh, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Baehr, S., Bahinipati, S., Bakich, A. M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Beaulieu, A., Becker, J., Behera, P. K., Bender, M., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Brown, D. N., Budano, A., Burmistrov, L., Bussino, S., Campajola, M., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Červenkov, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Chen, Y. -T., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. -E., Cho, K., Cho, S. -J., Choi, S. -K., Choudhury, S., Cinabro, D., Corona, L., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Czank, T., Dash, N., Dattola, F., De La Cruz-Burelo, E., de Marino, G., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Deschamps, B., Destefanis, M., Dey, S., De Yta-Hernandez, A., Di Canto, A., Di Capua, F., Di Carlo, S., Dingfelder, J., Doležal, Z., Jimé, I. Domínguez, Dong, T. V., Dort, K., Dossett, D., Dubey, S., Duell, S., Dujany, G., Eidelman, S., Eliachevitch, M., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fillinger, T., Finocchiaro, G., Fiore, S., Fischer, P., Fodor, A., Forti, F., Frey, A., Friedl, M., Fulsom, B. G., Gabriel, M., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gelb, M., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, K., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Villanueva, M. Hernández, Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hollitt, S., Hotta, T., Hsu, C. -L., Hu, Y., Huang, K., Humair, T., Iijima, T., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jackson, P., Jacobs, W. W., Jaegle, I., Jaffe, D. E., Jang, E. -J., Jeandron, M., Jeon, H. B., Jia, S., Jin, Y., Joo, C., Joo, K. K., Junkerkalefeld, H., Kadenko, I., Kahn, J., Kakuno, H., Kaliyar, A. B., Kandra, J., Kang, K. H., Kapusta, P., Karl, R., Karyan, G., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Ketter, C., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. -H., Kim, D. Y., Kim, H. J., Kim, K. -H., Kim, K., Kim, S. -H., Kim, Y. -K., Kim, Y., Kimmel, T. D., Kindo, H., Kinoshita, K., Kirby, B., Kleinwort, C., Knysh, B., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalchuk, N., Kovalenko, E., Kraetzschmar, T. M. G., Krinner, F., Križan, P., Kroeger, R., Krohn, J. F., Krokovny, P., Krüger, H., Kuehn, W., Kuhr, T., Kumar, J., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kunigo, T., Künzel, M., Kurz, S., Kuzmin, A., Kvasnička, P., Kwon, Y. -J., Lacaprara, S., Lai, Y. -T., La Licata, C., Lalwani, K., Lanceri, L., Lange, J. S., Laurenza, M., Lautenbach, K., Laycock, P. J., Diberder, F. R. Le, Lee, I. -S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. M., Li, C., Li, L. K., Li, S. X., Li, Y. B., Libby, J., Lieret, K., Gioi, L. Li, Lin, J., Liptak, Z., Liu, Q. Y., Liu, Z. A., Liventsev, D., Longo, S., Loos, A., Lu, P., Lubej, M., Lueck, T., Luetticke, F., Luo, T., Lyu, C., MacQueen, C., Maeda, Y., Maggiora, M., Maity, S., Manfredi, R., Manoni, E., Marcello, S., Marinas, C., Martini, A., Masuda, M., Matsuda, T., Matsuoka, K., Matvienko, D., McNeil, J., Meggendorfer, F., Mei, J. C., Meier, F., Merola, M., Metzner, F., Milesi, M., Miller, C., Miyabayashi, K., Miyake, H., Miyata, H., Mizuk, R., Azmi, K., Mohanty, G. B., Moon, H., Moon, T., Grimaldo, J. A. Mora, Morii, T., Moser, H. -G., Mrvar, M., Mueller, F., Müller, F. J., Muller, Th., Muroyama, G., Murphy, C., Mussa, R., Nakagiri, K., Nakamura, I., Nakamura, K. R., Nakano, E., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Natkaniec, Z., Natochii, A., Nayak, M., Nazaryan, G., Neverov, D., Niebuhr, C., Niiyama, M., Ninkovic, J., Nisar, N. K., Nishida, S., Nishimura, K., Nishimura, M., Nouxman, M. H. A., Oberhof, B., Ogawa, K., Ogawa, S., Olsen, S. L., Onishchuk, Y., Ono, H., Onuki, Y., Oskin, P., Oxford, E. R., Ozaki, H., Pakhlov, P., Pakhlova, G., Paladino, A., Pang, T., Panta, A., Paoloni, E., Pardi, S., Park, H., Park, S. -H., Paschen, B., Passeri, A., Pathak, A., Patra, S., Paul, S., Pedlar, T. K., Peruzzi, I., Peschke, R., Pestotnik, R., Piccolo, M., Piilonen, L. E., Podesta-Lerma, P. L. M., Polat, G., Popov, V., Praz, C., Prell, S., Prencipe, E., Prim, M. T., Purohit, M. V., Rad, N., Rados, P., Raiz, S., Rasheed, R., Reif, M., Reiter, S., Remnev, M., Resmi, P. K., Ripp-Baudot, I., Ritter, M., Ritzert, M., Rizzo, G., Rizzuto, L. B., Robertson, S. H., Pérez, D. Rodríguez, Roney, J. M., Rosenfeld, C., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sanders, D. A., Sandilya, S., Sangal, A., Santelj, L., Sartori, P., Sasaki, J., Sato, Y., Savinov, V., Scavino, B., Schram, M., Schreeck, H., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seddon, R. M., Seino, Y., Selce, A., Senyo, K., Seong, I. S., Serrano, J., Sevior, M. E., Sfienti, C., Shebalin, V., Shen, C. P., Shibuya, H., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Singh, J. B., Skambraks, S., Smith, K., Sobie, R. J., Soffer, A., Sokolov, A., Soloviev, Y., Solovieva, E., Spataro, S., Spruck, B., Starič, M., Stefkova, S., Stottler, Z. S., Stroili, R., Strube, J., Stypula, J., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sutcliffe, W., Suzuki, K., Suzuki, S. Y., Svidras, H., Tabata, M., Takahashi, M., Takizawa, M., Tamponi, U., Tanaka, S., Tanida, K., Tanigawa, H., Taniguchi, N., Tao, Y., Taras, P., Tenchini, F., Tonelli, D., Torassa, E., Trabelsi, K., Tsuboyama, T., Tsuzuki, N., Uchida, M., Ueda, I., Uehara, S., Ueno, T., Uglov, T., Unger, K., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y. V., Vahsen, S. E., van Tonder, R., Varner, G. S., Varvell, K. E., Vinokurova, A., Vitale, L., Vorobyev, V., Vossen, A., Wach, B., Waheed, E., Wakeling, H. M., Wan, K., Abdullah, W. Wan, Wang, B., Wang, C. H., Wang, M. -Z., Wang, X. L., Warburton, A., Watanabe, M., Watanuki, S., Webb, J., Wehle, S., Welsch, M., Wessel, C., Wiechczynski, J., Wieduwilt, P., Windel, H., Won, E., Wu, L. J., Xu, X. P., Yabsley, B. D., Yamada, S., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yeo, I., Yin, J. H., Yonenaga, M., Yook, Y. M., Yoshihara, K., Yoshinobu, T., Yuan, C. Z., Yuan, G., Yusa, Y., Zani, L., Zhang, J. Z., Zhang, Y., Zhang, Z., Zhilich, V., Zhou, J., Zhou, Q. D., Zhou, X. Y., Zhukova, V. I., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We report updated measurements of branching fractions ($\mathcal{B}$) and CP-violating charge asymmetries ($\mathcal{A_{\rm CP}}$) for charmless $B$ decays at Belle II, which operates on or near the $\Upsilon$(4S) resonance at the SuperKEKB asymmetric energy $e^{+}e^{-}$ collider. We use samples of 2019 and 2020 data corresponding to 62.8 fb$^{-1}$ of integrated luminosity. The samples are analysed using two-dimensional fits in $\Delta E$ and $M_{\it bc}$ to determine signal yields of approximately 568, 103, and 115 decays for the channels $B^0 \to K^+\pi^-$, $B^+ \to K_{\rm S}^0\pi^+$, and $B^0 \to \pi^+\pi^-$, respectively. Signal yields are corrected for efficiencies determined from simulation and control data samples to obtain branching fractions and CP-violating asymmetries for flavour-specific channels. The results are compatible with known determinations and contribute important information to an early assessment of Belle II detector performance., Comment: 23 pages, 8 figures. Supporting material for Spring 2021 conferences

Published
2021

49. Measurement of the time-integrated mixing probability $\chi_d$ with a semileptonic double-tagging strategy and $34.6 {\rm fb}^{-1}$ of Belle II collision data

Author

Belle II Collaboration, Abudinén, F., Adachi, I., Adak, R., Adamczyk, K., Ahlburg, P., Ahn, J. K., Aihara, H., Akopov, N., Aloisio, A., Ameli, F., Andricek, L., Ky, N. Anh, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aushev, V., Aziz, T., Babu, V., Bacher, S., Baehr, S., Bahinipati, S., Bakich, A. M., Bambade, P., Banerjee, Sw., Bansal, S., Barrett, M., Batignani, G., Baudot, J., Beaulieu, A., Becker, J., Behera, P. K., Bender, M., Bennett, J. V., Bernieri, E., Bernlochner, F. U., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Bilokin, S., Biswas, D., Bobrov, A., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Branchini, P., Braun, N., Briere, R. A., Browder, T. E., Brown, D. N., Budano, A., Burmistrov, L., Bussino, S., Campajola, M., Cao, L., Caria, G., Casarosa, G., Cecchi, C., Červenkov, D., Chang, M. -C., Chang, P., Cheaib, R., Chekelian, V., Chen, C., Chen, Y. Q., Chen, Y. -T., Cheon, B. G., Chilikin, K., Chirapatpimol, K., Cho, H. -E., Cho, K., Cho, S. -J., Choi, S. -K., Choudhury, S., Cinabro, D., Corona, L., Cremaldi, L. M., Cuesta, D., Cunliffe, S., Czank, T., Dash, N., Dattola, F., De La Cruz-Burelo, E., de Marino, G., De Nardo, G., De Nuccio, M., De Pietro, G., de Sangro, R., Deschamps, B., Destefanis, M., Dey, S., De Yta-Hernandez, A., Di Canto, A., Di Capua, F., Di Carlo, S., Dingfelder, J., Doležal, Z., Jiménez, I. Domínguez, Dong, T. V., Dort, K., Dossett, D., Dubey, S., Duell, S., Dujany, G., Eidelman, S., Eliachevitch, M., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fillinger, T., Finocchiaro, G., Fiore, S., Fischer, P., Fodor, A., Forti, F., Frey, A., Friedl, M., Fulsom, B. G., Gabriel, M., Gabyshev, N., Ganiev, E., Garcia-Hernandez, M., Garg, R., Garmash, A., Gaur, V., Gaz, A., Gebauer, U., Gelb, M., Gellrich, A., Gemmler, J., Geßler, T., Getzkow, D., Giordano, R., Giri, A., Glazov, A., Gobbo, B., Godang, R., Goldenzweig, P., Golob, B., Gomis, P., Grace, P., Gradl, W., Graziani, E., Greenwald, D., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, K., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hazra, S., Hearty, C., Hedges, M. T., de la Cruz, I. Heredia, Villanueva, M. Hernández, Hershenhorn, A., Higuchi, T., Hill, E. C., Hirata, H., Hoek, M., Hohmann, M., Hollitt, S., Hotta, T., Hsu, C. -L., Hu, Y., Huang, K., Humair, T., Iijima, T., Inami, K., Inguglia, G., Jabbar, J. Irakkathil, Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Iwata, S., Jackson, P., Jacobs, W. W., Jaegle, I., Jaffe, D. E., Jang, E. -J., Jeandron, M., Jeon, H. B., Jia, S., Jin, Y., Joo, C., Joo, K. K., Junkerkalefeld, H., Kadenko, I., Kahn, J., Kakuno, H., Kaliyar, A. B., Kandra, J., Kang, K. H., Kapusta, P., Karl, R., Karyan, G., Kato, Y., Kawai, H., Kawasaki, T., Keck, T., Ketter, C., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. -H., Kim, D. Y., Kim, H. J., Kim, K. -H., Kim, K., Kim, S. -H., Kim, Y. -K., Kim, Y., Kimmel, T. D., Kindo, H., Kinoshita, K., Kirby, B., Kleinwort, C., Knysh, B., Kodyš, P., Koga, T., Kohani, S., Komarov, I., Konno, T., Korobov, A., Korpar, S., Kovalchuk, N., Kovalenko, E., Kraetzschmar, T. M. G., Krinner, F., Križan, P., Kroeger, R., Krohn, J. F., Krokovny, P., Krüger, H., Kuehn, W., Kuhr, T., Kumar, J., Kumar, M., Kumar, R., Kumara, K., Kumita, T., Kunigo, T., Künzel, M., Kurz, S., Kuzmin, A., Kvasnička, P., Kwon, Y. -J., Lacaprara, S., Lai, Y. -T., La Licata, C., Lalwani, K., Lanceri, L., Lange, J. S., Laurenza, M., Lautenbach, K., Laycock, P. J., Diberder, F. R. Le, Lee, I. -S., Lee, S. C., Leitl, P., Levit, D., Lewis, P. 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Z., Zhang, Y., Zhang, Z., Zhilich, V., Zhou, J., Zhou, Q. D., Zhou, X. Y., Zhukova, V. I., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We present the first measurement of the time-integrated mixing probability $\chi_d$ using Belle II data collected at a center-of-mass (CM) energy of 10.58 GeV, corresponding to the mass of the $\Upsilon$(4S) resonance, with an integrated luminosity of $34.6 {\rm fb}^{-1}$ at the SuperKEKB $e^+ e^-$ collider. We reconstruct pairs of B mesons both of which decay to semileptonic final states. Using a novel methodology, we measure $\chi_d = 0.187 \pm 0.010 \text{ (stat.)} \pm 0.019 \text{ (syst.)}$, which is compatible with existing indirect and direct determinations., Comment: 19 pages, 10 figures, conference note Moriond 2021

Published
2021

50. The association of genetic factors with serum calretinin levels in asbestos-related diseases

Author

Zupanc Cita, Franko Alenka, Strbac Danijela, Kovac Viljem, Dolzan Vita, and Goricar Katja

Subjects
malignant mesothelioma, calretinin, calb2, asbestos-related disease, polymorphism, Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

Asbestos exposure is associated with different asbestos-related diseases, including malignant mesothelioma (MM). MM diagnosis is confirmed with immunohistochemical analysis of several markers, including calretinin. Increased circulating calretinin was also observed in MM. The aim of the study was to determine if CALB2 polymorphisms or polymorphisms in genes that can regulate calretinin expression are associated with serum calretinin levels or MM susceptibility.

Published
2023
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