Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 천병구 | - |
dc.date.accessioned | 2019-11-25T01:49:11Z | - |
dc.date.available | 2019-11-25T01:49:11Z | - |
dc.date.issued | 2017-05 | - |
dc.identifier.citation | PHYSICAL REVIEW LETTERS, v. 118, no. 21, Article no. 211801 | en_US |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.issn | 1079-7114 | - |
dc.identifier.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.211801 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/113962 | - |
dc.description.abstract | We report the first measurement of the tau lepton polarization P-tau(D*) in the decay (B) over bar -> D* tau(-) (v) over bar (tau) as well as a newmeasurement of the ratio of the branching fractions R(D*) = B((B) over bar -> D* tau(-) (v) over bar (tau)) / B((B) over bar -> D* l(-) (v) over bar (l)), where l(-) denotes an electron or a muon, and the tau is reconstructed in the modes tau(-) -> pi(-) v(tau) and tau(-) -> rho(-) v(tau). We use the full data sample of 772 x 10(6) B (B) over bar pairs recorded with the Belle detector at the (KEKB) over bar electron-positron collider. Our results, P-tau(D*) = -0.38 +/- 0.51 (stat)(-0.16)(+0.21) (syst) and R(D*) = 0.270 +/- 0.035 (stat)(- 0.025)(+0.028) (syst), are consistent with the theoretical predictions of the standard model. | en_US |
dc.description.sponsorship | We acknowledge Y. Sakaki, M. Tanaka, and R. Watanabe for their invaluable suggestions and help. 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 SINET5 network support. We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, BK21Plus, WCU, RSRI, FLRFAS project and GSDC of KISTI (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (USA). This work is supported by a Grant-in-Aid for Scientific Research (S) "Probing New Physics with TauLepton" (No. 26220706) and was partly supported by a Grant-in-Aid for JSPS Fellows (No. 25.3096). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER PHYSICAL SOC | en_US |
dc.subject | Physical Systems | en_US |
dc.subject | Mesons | en_US |
dc.title | Measurement of the tau Lepton Polarization and R(D*) in the Decay (B)over-bar -˃ D* tau(-) (v)over-bar(tau) | en_US |
dc.type | Article | en_US |
dc.relation.no | 21 | - |
dc.relation.volume | 118 | - |
dc.identifier.doi | 10.1103/PhysRevLett.118.211801 | - |
dc.relation.page | 211801-211801 | - |
dc.relation.journal | PHYSICAL REVIEW LETTERS | - |
dc.contributor.googleauthor | Hirose, S. | - |
dc.contributor.googleauthor | Iijima, T. | - |
dc.contributor.googleauthor | Adachi, I. | - |
dc.contributor.googleauthor | Adamczyk, K. | - |
dc.contributor.googleauthor | Aihara, H. | - |
dc.contributor.googleauthor | Al Said, S. | - |
dc.contributor.googleauthor | Asner, D. M. | - |
dc.contributor.googleauthor | Atmacan, H. | - |
dc.contributor.googleauthor | Aulchenko, V. | - |
dc.contributor.googleauthor | Cheon, B. G. | - |
dc.relation.code | 2017001885 | - |
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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