Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 천병구 | - |
dc.date.accessioned | 2018-02-14T04:19:26Z | - |
dc.date.available | 2018-02-14T04:19:26Z | - |
dc.date.issued | 2011-11 | - |
dc.identifier.citation | Physical Review Letters, NOV 21 2011, 107 22 | en_US |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.107.221801 | - |
dc.description.abstract | We report the first observation of the doubly Cabibbo-suppressed decays D+ -> K+eta(()'()) using a 791 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D+ -> pi(+)eta(()'()) decays are B(D+ -> K+eta) / B(D+ -> pi(+)eta) =(3.06 +/- 0.43 +/- 0.14)% and B(D+ -> K+eta')/B(D+->pi(+)eta') = (3.77 +/- 0.39 +/- 0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D+ decays, delta(TA), is (72 +/- 9)degrees or (288 +/- 9)degrees. We also report the most precise measurements of CP asymmetries to date: A(CP)(D+->pi+eta) = (+1.74 +/- 1.13 +/- 0.19)% and A(CP)(D+->pi+eta') = (-0.12 +/- 1.12 +/- 0.17)%. | 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 (USA). E. Won acknowledges support by NRF Grant No. 2011-0027652 and B. R. Ko acknowledges support by NRF Grant No. 2011-0025750. | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER Physical SOC | en_US |
dc.subject | BELLE | en_US |
dc.title | Observation of D+ -˃ K+eta(()'()) and Search for CP Violation in D+ -˃ pi(+)eta(()'()) Decays | en_US |
dc.type | Article | en_US |
dc.relation.no | 22 | - |
dc.relation.volume | 107 | - |
dc.relation.page | 1-6 | - |
dc.relation.journal | PHYSICAL REVIEW LETTERS | - |
dc.contributor.googleauthor | Won, Eunil | - |
dc.contributor.googleauthor | Aihara, Hiroaki | - |
dc.contributor.googleauthor | Nitoh, Osamu | - |
dc.contributor.googleauthor | Kim, Sun Kee | - |
dc.contributor.googleauthor | Pakhlov, Pavel | - |
dc.contributor.googleauthor | Uglov, Timofey | - |
dc.contributor.googleauthor | Danilov, Mikhail | - |
dc.contributor.googleauthor | Mizuk, Roman | - |
dc.contributor.googleauthor | Chilikin, Kirill | - |
dc.contributor.googleauthor | Cheon, B. G. | - |
dc.relation.code | 2011207605 | - |
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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