Search for C-Parity Violation in J/ψ → γγ and γϕ
| dc.contributor.ORCID | 0000-0003-0867-2189 (Lou, X) | |
| dc.contributor.author | Ablikim, M. | en_US |
| dc.contributor.author | Achasov, M. N. | en_US |
| dc.contributor.author | Ai, X. C. | en_US |
| dc.contributor.author | Albayrak, O. | en_US |
| dc.contributor.author | Albrecht, M. | en_US |
| dc.contributor.author | Ambrose, D. J. | en_US |
| dc.contributor.author | Amoroso, A. | en_US |
| dc.contributor.author | Lou, Xinchou | en_US |
| dc.contributor.author | BESIII Collaboration | en_US |
| dc.contributor.utdAuthor | Lou, Xinchou | en_US |
| dc.date.accessioned | 2015-01-28T21:49:27Z | |
| dc.date.available | 2015-01-28T21:49:27Z | |
| dc.date.created | 2014-11-03 | en_US |
| dc.date.issued | 2014-11-03 | en_US |
| dc.description.abstract | Using 1.06 x 10⁸ ψ(3686) events recorded in e⁺e⁻ collisions at √s = 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity violation in J/ψ → γγ and γϕ decays via ψ(3686) → J/ψ π⁺π⁻. No significant signals are observed in either channel. Upper limits on the branching fractions are set to be ℬ(J/ψ → γγ) < 2.7 x 10⁻⁷ and ℬ(J/ψ → γϕ) < 1.4 x 10⁻⁶ at the 90% confidence level. The former is one order of magnitude more stringent than the previous upper limit, and the latter represents the first limit on this decay channel. | en_US |
| dc.description.sponsorship | National Key Basic Research Program of China (2015CB856700); Joint Funds of the National Natural Science Foundation of China (11079008, 11179007, U1232201, U1332201); National Natural Science Foundation of China (NSFC) (11205082, 11475090, 10935007, 11121092, 11125525, 11235011, 11322544, 11335008); Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program (KJCX2-YW-N29, KJCX2-YW-N45); German Research Foundation DFG under Contract No. Collaborative Research Center (CRC-1044); Ministry of Development of Turkey (DPT2006K-120470); Russian Foundation for Basic Research (14-07-91152); US Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118); WCU Program of the National Research Foundation of Korea (32-2008-000-10155-0). | en_US |
| dc.identifier.bibliographicCitation | Ablikim, M., M. N. Achasov, X. C. Ai, O. Albayrak, et al. 2014. "Search for C-parity violation in J/ψ → γγ and γϕ." Physical Review D 90(9), doi:10.1103/PhysRevD.90.092002 | en_US |
| dc.identifier.issn | 1550-7998 | en_US |
| dc.identifier.issue | 9 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10735.1/4293 | |
| dc.identifier.volume | 90 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Amer Physical Soc | en_US |
| dc.relation.uri | http://dx.doi.org/10.1103/PhysRevD.90.092002 | |
| dc.rights | ©2014 American Physical Society | en_US |
| dc.source | Physical Review D | |
| dc.subject | J/ψ Mesons (J/psi) | en_US |
| dc.subject | Branching fractions (Nuclear physics) | en_US |
| dc.subject | Photons | en_US |
| dc.title | Search for C-Parity Violation in J/ψ → γγ and γϕ | en_US |
| dc.type.genre | Article | en_US |