Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 천병구 | - |
dc.date.accessioned | 2018-03-20T06:17:35Z | - |
dc.date.available | 2018-03-20T06:17:35Z | - |
dc.date.issued | 2012-04 | - |
dc.identifier.citation | Physical Review D, 2012, 85(7), P.071102 | en_US |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.issn | 1550-2368 | - |
dc.identifier.uri | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.85.071102 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/49622 | - |
dc.description.abstract | Using a sample of 158 x 10(6) Y(2S) events collected with the Belle detector, we search for the first time for double-charmonium decays of the P-wave spin-triplet bottomonium states (Y(2S) -> gamma chi(bJ), chi(bJ) -> J/psi J/psi, J/psi psi', psi'psi' for J 0, 1, and 2). No significant chi(bJ) signal is observed in the double-charmonium mass spectra, and we obtain the following upper limits: B(chi(bJ) -> J/psi J/psi) < 7.1 x 10(-5), 2.7 x 10(-5), 4.5 x 10(-5), B(chi(bJ) -> J/psi psi') < 1.2 x 10(-4), 1. 7 x 10(-5), 4.9 x 10(-5), B(chi(bJ) -> psi'psi') < 3.1 x 10(-5), 6.2 x 10(-5), 1.6 x 10(-5) for J = 0, 1, and 2, respectively, at the 90% confidence level. These limits are significantly lower than the central values (with uncertainties of 50% to 70%) predicted using the light cone formalism but are consistent with calculations using the nonrelativistic QCD (NRQCD) factorization approach. | en_US |
dc.description.sponsorship | We thank the KEKB group for excellent operation of the accelerator, the KEK cryogenics group for efficient solenoid operations, and the KEK computer group and the NII for valuable computing and SINET4 network support. We acknowledge support from MEXT, JSPS and Nagoya’s TLPRC (Japan); ARC and DIISR(Australia); NSFC (China); MSMT (Czechia); DST (India); MEST, NRF, NSDC of KISTI, and WCU (Korea); MNiSW (Poland); MES and RFAAE (Russia); ARRS(Slovenia); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE and NSF (USA). | en_US |
dc.language.iso | en | en_US |
dc.publisher | The American Physical Society | en_US |
dc.subject | BELLE | en_US |
dc.subject | IDENTIFICATION | en_US |
dc.subject | KEKB | en_US |
dc.title | Search for double charmonium decays of the P-wave spin-triplet bottomonium states | en_US |
dc.type | Article | en_US |
dc.relation.no | 7 | - |
dc.relation.volume | 85 | - |
dc.identifier.doi | 10.1103/PhysRevD.85.071102 | - |
dc.relation.page | 071102- | - |
dc.relation.journal | PHYSICAL REVIEW D | - |
dc.contributor.googleauthor | Shen, C.P. | - |
dc.contributor.googleauthor | The Belle Collaboration | - |
dc.relation.code | 2012207603 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | bgcheon | - |
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