Model-independent measurement of the ckm angle gamma using b-0 -> dk*0 decays with d -> k (s) (0) pi (+)pi (-) and k (s) (0) k+k-
文献类型：期刊论文
| 作者 | Aaij, R.40; Abellan Beteta, C.42; Adeva, B.39; Adinolfi, M.48; Ajaltouni, Z.5; Akar, S.6; Albrecht, J.10; Alessio, F.40; Alexander, M.53; Ali, S.43 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2016-06-21 |
| 期号 | 6页码:31 |
| 关键词 | B physics Ckm angle gamma Cp violation Flavor physics Hadron-hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep06(2016)131 |
| 通讯作者 | Aaij, r.() |
| 英文摘要 | A binned dalitz plot analysis of the decays b (0) -> dk*(0), with d -> k (s) (0) pi(+)pi(-) and d -> k (s) (0) k+k-, is performed to measure the observables x(+/-) and y(+/-), which are related to the ckm angle gamma and the hadronic parameters of the decays. the d decay strong phase variation over the dalitz plot is taken from measurements performed at the cleo-c experiment, making the analysis independent of the d decay model. with a sample of proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb(-1), collected by the lhcb experiment, the values of the cp violation parameters are found to be x(+) = 0.05 +/- 0.35 +/- 0.02, x(-) = -0.31 +/- 0.20 +/- 0.04, y(+) = -0.81 +/- 0.28 +/- 0.06 and y(-) = 0.31 +/- 0.21 +/- 0.05, where the first uncertainties are statistical and the second systematic. these observables correspond to values gamma = (71 +/- 20)degrees, gamma(b0) = 0.56 +/- 0.17 and delta(b0) = (204(-20)(+21))degrees. the parameters gamma(b0) and delta(b0) are the magnitude ratio and strong phase difference between the suppressed and favoured b-0 decay amplitudes, and have been measured in a region of +/- 50 mev/c(2) around the k*(892)(0) mass and with the magnitude of the cosine of the k*(892)(0) helicity angle larger than 0.4. |
| WOS关键词 | CP-VIOLATION |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000378712200001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176497 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Aaij, R. |
| 作者单位 | 1.CBPF, Rio De Janeiro, Brazil 2.Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil 3.Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China 4.Univ Savoie Mont Blanc, CNRS, IN2P3, LAPP, Annecy Le Vieux, France 5.Univ Clermont Ferrand, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France 7.Univ Paris 11, CNRS, IN2P3, LAL, Orsay, France 8.Univ Paris 06, Univ Paris Diderot, CNRS, IN2P3,LPNHE, Paris, France 9.Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany 10.Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany |
| 推荐引用方式 GB/T 7714 | Aaij, R.,Abellan Beteta, C.,Adeva, B.,et al. Model-independent measurement of the ckm angle gamma using b-0 -> dk*0 decays with d -> k (s) (0) pi (+)pi (-) and k (s) (0) k+k-[J]. Journal of high energy physics,2016(6):31. |
| APA | Aaij, R..,Abellan Beteta, C..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,...&Zucchelli, S..(2016).Model-independent measurement of the ckm angle gamma using b-0 -> dk*0 decays with d -> k (s) (0) pi (+)pi (-) and k (s) (0) k+k-.Journal of high energy physics(6),31. |
| MLA | Aaij, R.,et al."Model-independent measurement of the ckm angle gamma using b-0 -> dk*0 decays with d -> k (s) (0) pi (+)pi (-) and k (s) (0) k+k-".Journal of high energy physics .6(2016):31. |
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