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Search for CP violation and observation of P violation in Lambda(0)(b) -> p pi(-) pi(+) pi(-) decays

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成果类型:
期刊论文
作者:
Aaij, R.*;Beteta, C. Abellan;Ackernley, T.;Adeva, B.;Adinolfi, M.;...
通讯作者:
Aaij, R.
作者机构:
[Ketel, T.; Mulder, M.; Tuning, N.; Hynds, D.; van Tilburg, J.; Hart, R.; Kuindersma, H. S.; de Vries, J. A.; Heijhoff, K.; Veronesi, M.; Aaij, R.; Snoch, A.; Greim, R.; van Beuzekom, M.; Martinez, M. Lucio; Kostiuk, I; Jans, E.; Bel, L. J.; Esen, S.; Dall'Occo, E.; Pellegrino, A.; Vitkovskiy, A.; Merk, M.; Onderwater, C. J. G.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Akiba, K. Carvalho; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Sierra, C. Vazquez; Govorkova, E.; Schubiger, M.; Benson, S.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Massafferri, A.; De Miranda, J. M.; Torres, M. Cruz; Gomes, A.; Lavra, L. Soares; dos Reis, A. C.; Bediaga, I] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.
[De Paula, B. Souza; de Oliveira, L. Silva; Lopes, J. H.; Goicochea, J. M. Otalora; Polycarpo, E.; Gandelman, M.; Rangel, M. S.; Ferreira Rodrigues, F.; Hicheur, A.; Nasteva, I; Sellam, S.; De Paula, L.; Amato, S.] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil.
[Yang, Z.; Cai, H.; Zhang, S.; Jiang, F.; Fan, J.; Xu, A.; Liu, G.; Ren, Z.; Xu, L.; Tang, Z.; Li, H.; Wang, J.; Xu, Z.; Wang, M.; Zhang, W. C.; Gu, C.; Sun, J.; Xing, H.; Chen, C.; Zhu, X.; Sun, L.; Luo, Y.; Mu, H.; Zeng, M.; Zhang, L.; Gan, Y.; Liu, X.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Gao, Y.] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China.
通讯机构:
[Aaij, R.] N
Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2020
卷:
102
期:
5
基金类别:
CAPES (Brazil)CAPES; CNPq (Brazil)National Council for Scientific and Technological Development (CNPq); FAPERJ (Brazil)Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro (FAPERJ); FINEP (Brazil)Ciencia Tecnologia e Inovacao (FINEP); MOST (China)Ministry of Science and Technology, China; NSFC (China)National Natural Science Foundation of China (NSFC); CNRS/IN2P3 (France)Centre National de la Recherche Scientifique (CNRS); BMBF (Germany)Federal Ministry of Education & Research (BMBF); MPG (Germany)Max Planck Society; DFG (Germany)German Research Foundation (DFG); INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); NWO (Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; MNiSW (Poland)Ministry of Science and Higher Education, Poland; NCN (Poland); MEN/IFA (Romania); MSHE (Russia); MinECo (Spain); SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom)Science & Technology Facilities Council (STFC); DOE NP (USA); NSF (USA)National Science Foundation (NSF); AvH Foundation (Germany)Alexander von Humboldt Foundation; EPLANET (European Union)European Union (EU); Marie Sklodowska-Curie Actions (European Union)European Union (EU); ERC (European Union)European Union (EU)European Research Council (ERC); ANR (France)French National Research Agency (ANR); Labex P2IO and OCEVU (France); Region Auvergne-Rhone-Alpes (France)Region Auvergne-Rhone-Alpes; Key Research Program of Frontier Sciences of CAS (China); CAS PIFI (China); Thousand Talents Program (China); RFBR (Russia)Russian Foundation for Basic Research (RFBR); RSF (Russia)Russian Science Foundation (RSF); Yandex LLC (Russia); GVA (Spain); XuntaGal (Spain); GENCAT (Spain); Royal Society (United Kingdom)Royal Society of London; Leverhulme Trust (United Kingdom)Leverhulme Trust; CERN
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
A search for CP violation in the Lambda(0)(b) -> p pi(-) pi(+) pi(-) decay is performed using LHCb data corresponding to an integrated luminosity of 6.6 fb(-1) collected in pp collisions at center-of-mass energies of 7, 8 and 13 TeV. The analysis uses both triple product asymmetries and the unbinned energy test method. The highest significances of CP asymmetry are 2.9 standard deviations from triple product asymmetries and 3.0 standard deviations for the energy test method. Once the global p-value is considered, all results are consistent with no CP violation. Parity violation is observed at a...

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