Evidence for ηc→γγ and measurement of J/ψ→3γ

Publication:
Evidence for ηc→γγ and measurement of J/ψ→3γ

dc.contributor.buuauthor	Tapan, İlhan
dc.contributor.department	Fen Edebiyat Fakültesi
dc.contributor.department	Fizik Bölümü
dc.contributor.researcherid	CCD-9486-2022
dc.contributor.scopusid	8905787000
dc.date.accessioned	2024-02-29T07:27:41Z
dc.date.available	2024-02-29T07:27:41Z
dc.date.issued	2013-02-08
dc.description	Çalışmada 345 yazar bulunmaktadır. Bu yazarlardan sadece Bursa Uludağ Üniversitesi mensuplarının girişleri yapılmıştır
dc.description.abstract	The decay of J/psi to three photons is studied using psi (3686) -> pi(+) pi(-) J/psi in a sample of 1.0641 X 10(8) psi (3686) events collected with the BESIII detector. Evidence of the direct decay of eta(c) to two photons, eta(c) -> gamma gamma, is reported, and the product branching fraction is determined to be B(J/psi -> gamma eta(c,) eta(c) -> gamma gamma = (4.5 +/- 1.2 +/- 0.6) X 10(-6), where the first error is statistical and the second is systematic. The branching fraction for J/psi -> 3 gamma is measured to be (11.3 +/- 1.8 +/- 2.0) X 10(-6) with improved precision.
dc.description.sponsorship	Ministry of Science and Technology, China (2009CB825200)
dc.description.sponsorship	National Natural Science Foundation of China (NSFC) (10625524)
dc.description.sponsorship	Chinese Academy of Sciences (KJCX2-YW-N29)
dc.description.sponsorship	Istituto Nazionale di Fisica Nucleare (INFN)
dc.description.sponsorship	National Science Foundation (NSF)
dc.description.sponsorship	University of Groningen (RuG)
dc.description.sponsorship	Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt
dc.description.sponsorship	National Research Foundation of Korea (R32-2008-000-10155-0)
dc.identifier.citation	Ablikim, M. vd. (2013). ''Evidence for ηc→γγ and measurement of J/ψ→3γ''. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(3).
dc.identifier.doi	https://doi.org/10.1103/PhysRevD.87.032003
dc.identifier.issn	2470-0010
dc.identifier.issn	2470-0029
dc.identifier.issue	3
dc.identifier.scopus	2-s2.0-84873589968
dc.identifier.uri	https://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.032003
dc.identifier.uri	https://hdl.handle.net/11452/40067
dc.identifier.volume	87
dc.identifier.wos	000314765100001
dc.indexed.wos	SCIE
dc.language.iso	en
dc.publisher	American Physical Society
dc.relation.collaboration	Yurt dışı
dc.relation.collaboration	Yurt içi
dc.relation.collaboration	Sanayi
dc.relation.journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	Astronomy & astrophysics
dc.subject	Physics
dc.subject	Decay-rate
dc.subject	Positronium
dc.subject	Precision
dc.subject.scopus	Charmonium; Drift Chambers; Branching
dc.subject.wos	Astronomy & astrophysics
dc.subject.wos	Physics, particles & fields
dc.title	Evidence for ηc→γγ and measurement of J/ψ→3γ
dc.type	Article
dspace.entity.type	Publication
local.contributor.department	Fen Edebiyat Fakültesi/Fizik Bölümü
local.indexed.at	Scopus
local.indexed.at	WOS