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DC Field | Value | Language |
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dc.date.accessioned | 2023-09-08T06:42:31Z | - |
dc.date.available | 2023-09-08T06:42:31Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | Ablikim, M. vd. (2017). ''Improved measurements of two-photon widths of the chi(cJ) states and helicity analysis for chi(c2) -> gamma gamma''. Physical Review D, 96(9). | en_US |
dc.identifier.issn | 2470-0010 | - |
dc.identifier.issn | 2470-0029 | - |
dc.identifier.uri | https://doi.org/10.1103/PhysRevD.96.092007 | - |
dc.identifier.uri | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.092007 | - |
dc.identifier.uri | http://hdl.handle.net/11452/33793 | - |
dc.description | Çalışmada 442 yazar bulunmaktadır. Bu yazarlardan sadece Bursa Uludağ Üniversitesi mensuplarının girişleri yapılmıştır. | tr_TR |
dc.description.abstract | Based on 448.1 x 10(6) Psi(3686) events collected with the BESIII detector, the decays Psi(3686) -> gamma chi(cJ), chi(cJ) -> gamma gamma(J = 0, 1, 2) are studied. The decay branching fractions of chi(c0,2) -> gamma gamma are measured to be B(chi(c0) -> gamma gamma) = (1.93 +/- 0.08 +/- 0.05 +/- 0.05) x 10(-4) and B(chi(c2) -> gamma gamma) = (3.10 +/- 0.09 +/- 0.07 +/- 0.11) x 10(-4) which correspond to two-photon decay widths of Gamma(gamma gamma)(chi(c0)) = 2.03 +/- 0.08 +/- 0.06 +/- 0.13 keV and Gamma(gamma gamma)(chi(c2)) = 0.60 +/- 0.02 +/- 0.01 +/- 0.04 keV with a ratio of R = Gamma(gamma gamma)(chi(c2))/Gamma(gamma gamma)(chi(c0)) = 0.295 +/- 0.014 +/- 0.007 +/- 0.027, where the uncertainties are statistical, systematic and associated with the uncertainties of B(Psi(3686) -> gamma chi(c0,2)) and the total widths Gamma(chi(c0,2)), respectively. For the forbidden decay of chi(c1) -> gamma gamma, no signal is observed, and an upper limit on the two-photon width is obtained to be Gamma(gamma gamma)(chi(c1)) < 5.3 eV at the 90% confidence level. The ratio of the two-photon widths between helicity-zero and helicity-two components in the decay chi(c2) -> gamma gamma is also measured to be f(0/2) = Gamma(lambda=0)(gamma gamma) (chi(c2))/Gamma(lambda=2)(gamma gamma) (chi(c2)) = (0.0 +/- 0.6 +/- 1.2) x 10(-2), where the uncertainties are statistical and systematic, respectively. | en_US |
dc.description.sponsorship | National Basic Research Program of China - 2015CB856700 | en_US |
dc.description.sponsorship | National Natural Science Foundation of China (NSFC) - 11235011 - 11322544 - 11335008 - 11425524 - 11635010 | en_US |
dc.description.sponsorship | Chinese Academy of Sciences | en_US |
dc.description.sponsorship | CAS Center for Excellence in Particle Physics (CCEPP) | en_US |
dc.description.sponsorship | Collaborative Innovation Center for Particles and Interactions (CICPI) | en_US |
dc.description.sponsorship | Joint Large-Scale Scientific Facility Funds of the NSFC | en_US |
dc.description.sponsorship | Chinese Academy of Sciences - U1232201 - U1332201 - U1532257 - U1532258 - KJCX2-YW-N29 - KJCX2-YW-N45 | en_US |
dc.description.sponsorship | National 1000 Talents Program of China | en_US |
dc.description.sponsorship | INPAC | en_US |
dc.description.sponsorship | Shanghai Key Laboratory for Particle Physics and Cosmology | en_US |
dc.description.sponsorship | German Research Foundation (DFG) - CRC 1044 - FOR 2359 | en_US |
dc.description.sponsorship | Istituto Nazionale di Fisica Nucleare (INFN) | ita |
dc.description.sponsorship | Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) 530-4CDP03 | de |
dc.description.sponsorship | Türkiye Cumhuriyeti Kalkınma Bakanlığı - DPT2006K-120470 | tr_TR |
dc.description.sponsorship | National Science and Technology fund | en_US |
dc.description.sponsorship | The Swedish Resarch Council | en_US |
dc.description.sponsorship | United States Department of Energy (DOE) - DE-FG02-05ER41374 - DE-SC-0010118 - DE-SC-0010504 - DE-SC-0012069 | en_US |
dc.description.sponsorship | University of Groningen (RuG) | en_US |
dc.description.sponsorship | Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt | de |
dc.description.sponsorship | National Research Foundation of Korea - R32-2008-000-10155-0 | en_US |
dc.language.iso | en | en_US |
dc.publisher | Amer Phyical | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.rights | Atıf Gayri Ticari Türetilemez 4.0 Uluslararası | tr_TR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Astronomy & astrophysics | en_US |
dc.subject | Physics | en_US |
dc.subject | Quarkonia | en_US |
dc.subject | E(+)E(-) | en_US |
dc.subject | Rates | en_US |
dc.title | Improved measurements of two-photon widths of the chi(cJ) states and helicity analysis for chi(c2) -> gamma gamma | en_US |
dc.type | Article | en_US |
dc.identifier.wos | 000416315000002 | tr_TR |
dc.identifier.scopus | 2-s2.0-85037683036 | tr_TR |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi | tr_TR |
dc.contributor.department | Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü. | tr_TR |
dc.identifier.volume | 96 | tr_TR |
dc.identifier.issue | 6 | tr_TR |
dc.relation.journal | Physical Review D | en_US |
dc.contributor.buuauthor | Tapan, İlhan | - |
dc.relation.collaboration | Yurt içi | tr_TR |
dc.relation.collaboration | Yurt dışı | tr_TR |
dc.relation.collaboration | Sanayi | tr_TR |
dc.subject.wos | Astronomy & astrophysics | en_US |
dc.subject.wos | Physics, particles & fields | en_US |
dc.indexed.wos | SCIE | en_US |
dc.indexed.scopus | Scopus | en_US |
dc.wos.quartile | Q1 | en_US |
dc.contributor.scopusid | 8905787000 | tr_TR |
dc.subject.scopus | Charmonium; Drift Chambers; Branching | en_US |
Appears in Collections: | Scopus Web of Science |
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