Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)最新文献

{"title":"Search for BSM physics with neutron beta decay in the BRAND project","authors":"D. Rozpȩdzik","doi":"10.22323/1.380.0432","DOIUrl":"https://doi.org/10.22323/1.380.0432","url":null,"abstract":"K. Bodek, J. Choi, L. De Keukeleere, K. Dhanmeher, M. Engler, G. Gupta, A. Kozela, K. Lojek, K. Pysz, D. Ries, D. Rozpedzik,0,∗ N. Severijns, T. Soldner, 5 N. Yazdandoost, A. R. Young and J. Zejma Institute of Physics, Jagiellonian University, Krakow, Poland Department of Physics and Astronomy, NC State University, Raleigh, USA Institute of Nuclear and Radiation Physics, KU Leuven, Belgium Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland Johannes Gutenberg University Mainz, Germany 5 Institut Laue-Langevin, Grenoble, France E-mail: dagmara.rozpedzik@uj.edu.pl","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125002259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Associated productions with top (t+X, tt+X with X=W,Z,४, heavy-flavours, tt) at the LHC","authors":"T. Dado","doi":"10.22323/1.380.0413","DOIUrl":"https://doi.org/10.22323/1.380.0413","url":null,"abstract":"","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121019583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling the data at the LHC: status and issues (overview including soft QCD and TOP)","authors":"E. Yazgan","doi":"10.22323/1.380.0410","DOIUrl":"https://doi.org/10.22323/1.380.0410","url":null,"abstract":"","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122347521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tagging large-radius $b$-jets from Higgs decays dropping unneeded information","authors":"A. Di Luca, D. Mascione, F. M. Follega, M. Cristoforetti, R. Iuppa","doi":"10.22323/1.380.0399","DOIUrl":"https://doi.org/10.22323/1.380.0399","url":null,"abstract":"Multivariate approaches used in physics analyses by the High Energy Physics community often combine high-level observables estimated by very complex algorithms. The process to select these variables is usually based on a “brute force” approach, where all available event features are tested for multiple combinations of the algorithm hyperparameters. In this work, we propose an original method based on the use of a CancelOut layer to select to give as input to a Fully Connected Neural Network. Promising results are obtained in the development of a DNN classifier to select proton-proton collisions where a boosted Higgs boson decay to two 1-quarks.","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122947031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Results of J/ψ weak decay searching at BESIII","authors":"Chengwei Wang","doi":"10.22323/1.380.0436","DOIUrl":"https://doi.org/10.22323/1.380.0436","url":null,"abstract":"","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122516235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurements of Nuclear Modification Factor of Inclusive Full Jet Measurements in Pb-Pb Collisions at √sNN = 5.02 TeV with LHC-ALICE","authors":"Kumaoka Takuya","doi":"10.22323/1.380.0264","DOIUrl":"https://doi.org/10.22323/1.380.0264","url":null,"abstract":"","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122031576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Some recent advances in the understanding of ${cal N}=4$ supersymmetric Yang-Mills thermodynamics","authors":"Ubaid Tantary, Qianqian Du, M. Strickland","doi":"10.22323/1.380.0225","DOIUrl":"https://doi.org/10.22323/1.380.0225","url":null,"abstract":"The interest in the thermodynamics of supersymmetric Yang-Mills started after Maldacena proposed the duality between string theory on AdS backgrounds and the large-N limit of SYM theories. One of the motivations to study the thermal properties of ${cal N}=4$ supersymmetric Yang-Mills in four dimensions (SYM$_{4,4}$) is that at high temperatures, the weak-coupling limit of this theory has many similarities with high temperature quantum chromodynamics (QCD). In this proceedings contribution, we review recent calculations of the resummed perturbative free energy of ${cal N}=4$ supersymmetric Yang-Mills in four spacetime dimensions through second order in the 't Hooft coupling $lambda$ at finite temperature and zero chemical potential. We compare our final result with prior results obtained in the weak and strong-coupling limits and construct a generalized Pad'{e} approximant that interpolates between the weak-coupling result and the large-$N_c$ strong-coupling result.","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129511694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Twist-3 gluon fragmentation contribution to transversely polarized hyperon production in semi-inclusive deep-inelastic scattering","authors":"Riku Ikarashi, Y. Koike, Kenta Yabe, S. Yoshida","doi":"10.22323/1.380.0370","DOIUrl":"https://doi.org/10.22323/1.380.0370","url":null,"abstract":"Riku Ikarashi,a,∗ Yuji Koike,b Kenta Yabea and Shinsuke Yoshidac,d aGraduate School of Science and Technology, Niigata University, Ikarashi, Niigata 950-2181, Japan bDepartment of Physics, Niigata University, Ikarashi, Niigata 950-2181, Japan cGuangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China dGuangdong-Hong Kong Joint Laboratory of Quantum Matter, Southern Nuclear Science Computing Center, South China Normal University, Guangzhou 510006, China E-mail: rick.ikatarashi@gmail.com, koike@phys.sc.niigata-u.ac.jp,","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116323000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of isospin symmetry for fragmentation functions","authors":"Kai-bao Chen","doi":"10.22323/1.380.0360","DOIUrl":"https://doi.org/10.22323/1.380.0360","url":null,"abstract":"We make an analysis of the isospin symmetry for fragmentation functions assuming isospin symmetry in strong interactions. Taking hadron decay contributions into account, we show that the isospin symmetry is held for unpolarized Λ fragmentation functions. Only tiny violations are allowed for the polarized Λ fragmentation functions. We show that the recent Belle data on the transverse polarization of Λ can be reproduced if the isospin symmetry is kept in the parameterization of the corresponding polarized fragmentation functions. This isospin symmetry can be checked in future SIDIS experiments with different nucleus targets.","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126520586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improvement of systematic uncertainties for the neutron lifetime experiment at J-PARC","authors":"T. Mogi, T. Hasegawa, K. Hirota, G. Ichikawa, S. Ieki, T. Ino, Y. Iwashita, S. Kajiwara, Yu Kato, M. Kitaguchi, R. Kitahara, J. Koga, S. Makise, Shun Matsuzaki, K. Mishima, Koki Morikawa, N. Nagakura, H. Okabe, H. Otono, Y. Seki, D. Sekiba, T. Shima, Haruki Shimizu, H. Shimizu, Y. Sugisawa, N. Sumi, H. Sumino, T. Tanabe, T. Tomita, H. Uehara, T. Yamada, Satoru Yamashita, K. Yano, T. Yoshioka","doi":"10.22323/1.380.0458","DOIUrl":"https://doi.org/10.22323/1.380.0458","url":null,"abstract":"T. Mogi,a,∗ T. Hasegawa, K. Hirota, G. Ichikawa, S. Ieki, T. Ino, Y. Iwashita, S. Kajiwara, Y. Kato, M. Kitaguchi, f R. Kitahara, J. Koga, S. Makise, S. Matsuzaki, K. Mishima, K. Morikawa, N. Nagakura, H. Okabe, H. Otono, Y. Seki, j D. Sekiba, T. Shima, H. E. Shimizu, H. M. Shimizu, Y. Sugisawa, N. Sumi, H. Sumino, T. Tanabe, T. Tomita, H. Uehara, T. Yamada, S. Yamashita, K. Yano and T. Yoshioka Department of Physics, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan Department of Physics, Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan KEK, High Energy Accelerator Research Organization, Tsukuba, 305-0801, Japan Research Centre for Neutrino Science, Tohoku University, Miyagi, 980-8578, Japan Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, 590-0494, Japan f Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University, Nagoya, 464-8602, Japan Department of Physics, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan Department of Physics, Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan Research Center for Advanced Particle Physics (RCAPP), Kyushu University, Fukuoka, 819-0395, Japan Center for Physics and Mathematics, Osaka Electro-Communication University, Osaka, 572-8530, Japan Institute of Applied Physics, University of Tsukuba, Tsukuba, 305-8573, Japan Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, 567-0047, Japan School of High Energy Accelerator Science, The Graduate University for Advanced Studies, Tsukuba, 305-0801, Japan Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan International Center for the Elementary Particle Physics (ICEPP), The University of Tokyo, Tokyo, 113-0033, Japan E-mail: mogi@icepp.s.u-tokyo.ac.jp The neutron lifetime is one of the important parameters for particle physics and astrophysics. There is a 4.6σ (9.5 s) discrepancy between the results of the two typical methods. To solve this discrepancy, a new neutron lifetime experiment with a different method is in progress at J-PARC, and this experiment published the first result in 2020 of 898±10(stat.) +15/−18(syst.) s. We have performed improvements to reduce systematic uncertainties towards 1 s accuracy. The methods to measure the amount of 3He injected and in the working gas have been upgraded, and a new model for the space charge effect in the Monte Carlo simulation has been implemented.","PeriodicalId":135659,"journal":{"name":"Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021)","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130292085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}