Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 천병구 | - |
dc.date.accessioned | 2018-04-03T00:36:00Z | - |
dc.date.available | 2018-04-03T00:36:00Z | - |
dc.date.issued | 2013-02 | - |
dc.identifier.citation | Physical Review D, Feb 2013, 87(3), 031101 | en_US |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.issn | 1550-2368 | - |
dc.identifier.uri | https://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.031101 | - |
dc.description.abstract | We have made a precise measurement of the absolute branching fractions of B-s(0) -> D-s(()*()+) D-s(()*()-) decays using 121.4 fb(-1) of data recorded by the Belle experiment running at the Upsilon(5S) resonance. The results are B(B-s(0) -> D-s(+) D-s(-)) = 0.58(-0.09)(+0.11) +/- 0.13)%, B(B-s(0) -> D-s*(+/-) D-s(-/+)) = (1.76(-0.22)(+0.23) +/- 0.40)%, and B(B-s(0) -> D-s*(+) D-s*(-)) = (1.98(-0.31-0.50)(+0.33+0.52))%; the sum is B(B-s(0) -> D-s(()*()+) D-s(()*()-)) = (4.32(-0.39-1.03)(+0.42+1.04))%. Assuming B-s(0) -> D-s(()*()+) D-s(()*()-) saturates decays to CP-even final states, the branching fraction constrains the ratio Delta Gamma(s)/cos phi(12), where Delta Gamma(s) is the difference in widths between the two B-s-(B) over bar (s) mass eigenstates, and phi(12) is the CP-violating phase in B-s-(B) over bar (s) mixing. We also measure for the first time the longitudinal polarization fraction of B-s(0) -> D-s*(+) D-s*(-); the result is 0.06(-0.17)(+0.18) +/- 0.03. DOI: 10.1103/PhysRevD.87.031101 | en_US |
dc.description.sponsorship | We thank R. Aleksan and L. Oliver for useful discussions. We thank the KEKB group for excellent operation of the accelerator; the KEK cryogenics group for efficient solenoid operations; and the KEK computer group, the NII, and PNNL/EMSL 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 (Czech Republic); DST (India); INFN (Italy); MEST, NRF, GSDC 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 | Amer Physical SOC | en_US |
dc.subject | DECAYS | en_US |
dc.title | Precise measurement of the branching fractions for B-s(0) -˃ D-s(()*()+) D-s(()*()-) and first measurement of the D-s*(+) D-s*(-) polarization using e(+)e(-) collisions | en_US |
dc.type | Article | en_US |
dc.relation.no | 3 | - |
dc.relation.volume | 87 | - |
dc.identifier.doi | 10.1103/PhysRevD.87.031101 | - |
dc.relation.page | 31101-31101 | - |
dc.relation.journal | PHYSICAL REVIEW D | - |
dc.contributor.googleauthor | Wang, C. H. | - |
dc.contributor.googleauthor | O. Nitoh | - |
dc.contributor.googleauthor | T.-A. Shibata | - |
dc.contributor.googleauthor | Y. Watanabe | - |
dc.contributor.googleauthor | Kim, K. T. | - |
dc.contributor.googleauthor | S. Okuno | - |
dc.contributor.googleauthor | Cheon, B. G. | - |
dc.contributor.googleauthor | Kim, Y. J. | - |
dc.contributor.googleauthor | H. Miyata | - |
dc.contributor.googleauthor | Cheon, B. G. | - |
dc.relation.code | 2013011682 | - |
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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