Tests of CP symmetry in entangled ?0- (?)over-bar0 pairs

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dc.authoridCalligaris, Luigi/0000-0002-9951-9448
dc.authoridLiu, Zhiqiang/0000-0003-2982-8381
dc.authoridLu, Xin/0000-0001-9885-6031
dc.authoridChen, Jin/0009-0005-5844-635X
dc.authoridLi, Yuanyuan/0000-0002-4955-1159
dc.authoridLavezzi, Lia/0000-0002-4928-8151
dc.authoridYuncu, Alperen/0000-0001-9696-9331
dc.authorwosidLiu, yuqing/KEI-3260-2024
dc.authorwosidCalligaris, Luigi/K-2018-2017
dc.authorwosidWang, YUJIE/JXY-8442-2024
dc.authorwosidLiu, Zhiqiang/GPX-4293-2022
dc.authorwosidZhao, ZiHao/KHT-4413-2024
dc.authorwosidShi, Yaolin/JXN-8322-2024
dc.authorwosidyang, liu/JXX-5043-2024
dc.contributor.authorAblikim, M.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, P.
dc.contributor.authorAi, X. C.
dc.contributor.authorAliberti, R.
dc.contributor.authorAmoroso, A.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:50:56Z
dc.date.available2024-05-19T14:50:56Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe J/psi -> Xi(0)(Xi) over bar (0) process and subsequent decays are investigated using (10087 +/- 44) x 10(6) J/psi events collected at the BESIII experiment. The decay parameters of Xi(0) and (Xi) over bar (0) are simultaneously measured to be alpha(Xi) = -0.3750 +/- 0.0034 +/- 0.0016, (alpha) over bar (Xi) = 0.3790 +/- 0.0034 +/- 0.0021, phi(Xi) = 0.0051 +/- 0.0096 +/- 0.0018 rad, (phi) over bar (Xi) = -0.0053 +/- 0.0097 +/- 0.0019 rad with unprecedented accuracies, where the first and the second uncertainties are statistical and systematic, respectively. The most precise values for CP asymmetry observables of Xi(0) decay are obtained to be A(CP)(Xi) = (-5.4 +/- 6.5 +/- 3.1) x 10(-3) and Delta phi(Xi)(CP) = (-0.1 +/- 6.9 +/- 0.9) x 10(-3) rad. For the first time, the weak and strong phase differences are determined to be xi(P) - xi(S) = (0.0 +/- 1.7 +/- 0.2) x 10(-2) rad and delta(P) - delta(S) = (-1.3 +/- 1.7 +/- 0.4) x 10(-2) rad, which are the most precise results for any weakly decaying baryon. These results will play important roles in the studies of the CP violations and polarizations for the strange, charmed, and beauty baryons.en_US
dc.description.sponsorshipBESIIen_US
dc.description.sponsorshipThe BESIII Collaboration thanks the staff of BEPCII and the IHEP computing center for their strong support. This work is supported in part by the National Key R&D Program of China under Contracts No. 2020YFA0406300 and No. 2020YFA0406400; the National Natural Science Foundation of China (NSFC) under Contracts No. 11635010, No. 11735014, No. 11835012, No. 11935015, No. 11935016, No. 11935018, No. 11961141012, No. 12022510, No. 12025502, No. 12035009, No. 12035013, No. 12061131003, No. 12192260, No. 12192261, No. 12192262, No. 12192263, No. 12192264 No. 12192265, No. 12221005, No. 12225509, and No. 12235017; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP) ; the CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSWSLH040; 100 Talents Program of CAS; the Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; the ERC under Contract No. 758462; European Union's Horizon 2020 research and innovation program under Marie Sklodowska-Curie grant agreement under Contract No. 894790; the German Research Foundation DFG under Contracts No. 443159800 and No. 455635585, and Collaborative Research Center CRC 1044, FOR5327, GRK 2149; Olle Engkvist Foundation, Contract No. 200-0605; Lundstrom-angstrom man Foundation; Knut and Alice Wallenberg Foundation, Contracts No. 2016.0157 and No. 2021.0299; Swedish Research Council, Contracts No. 2019-04594 and No. 2021-04567; Swedish Foundation for International Cooperation in Research and Higher Education, Contract No. CH2018-7756; Istituto Nazionale di Fisica Nucleare, Italy; Ministry of Development of Turkey under Contract No. DPT2006K120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund of Mongolia; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation of Thailand under Contract No. B16F640076; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; the Swedish Research Council; the U.S. Department of Energy under Contract No. DE-FG02-05ER41374.en_US
dc.identifier.doi10.1103/PhysRevD.108.L031106
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85172884065en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevD.108.L031106
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5840
dc.identifier.volume108en_US
dc.identifier.wosWOS:001091996700001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.ispartofPhysical Review Den_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectDecayen_US
dc.subjectHyperonen_US
dc.subjectViolationen_US
dc.titleTests of CP symmetry in entangled ?0- (?)over-bar0 pairsen_US
dc.typeArticleen_US

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