Measurement of cp asymmetry in b-s(0) -> (dsk +/-)-k--/+ decays
文献类型：期刊论文
| 作者 | Aaij, R.41; Adeva, B.40; Adinolfi, M.49; Ajaltouni, Z.5; Akar, S.60; Albrecht, J.10; Alessio, F.41; Alexander, M.54; Alfonso Albero, A.39; Ali, S.44 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2018-03-12 |
| 期号 | 3页码:28 |
| 关键词 | Ckm angle gamma Cp violation B physics Flavor physics Hadron-hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep03(2018)059 |
| 通讯作者 | Aaij, r.(giulia.tellarini@cern.ch) |
| 英文摘要 | We report the measurements of the cp-violating parameters in b-s(0) -> (dsk +/-)-k--/+ decays observed in pp collisions, using a data set corresponding to an integrated luminosity of 3.0 fb(-1) recorded with the lhcb detector. we measure c-f = 0.73 +/- 0.14 +/- 0.05, a(f)(delta gamma) = 0.39 +/- 0.28 +/- 0.15, a(<(f)over) (delta gamma)(bar>) = 0.31 +/- 0.28 +/- 0.15, s-f = -0.52 +/- 0.20 +/- 0.07, s-(f) over bar = -0.49 +/- 0.20 +/- 0.07, where the uncertainties are statistical and systematic, respectively. these parameters are used together with the world-average value of the b-s(0) mixing phase, -2 beta(s), to obtain a measurement of the ckm angle gamma from b-s(0) -> (dsk +/-)-k--/+ decays, yielding gamma - (128 (+17)(-22))degrees modulo 180 degrees, where the uncertainty contains both statistical and systematic contributions. this corresponds to 3.8 sigma evidence for cp violation in the interference between decay and decay after mixing. |
| WOS关键词 | VIOLATION ; GAMMA ; TOOL |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000428689300001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178204 |
| 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, Peoples R China 4.Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, IN2P3,LAPP, Annecy, France 5.Univ Blaise Pascal, Clermont Univ, CNRS, IN2P3,LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France 7.Univ Paris Saclay, Univ Paris Sud, LAL, CNRS,IN2P3, Orsay, France 8.Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, CNRS,IN2P3, Paris, France 9.Rhein Westfal TH Aachen, Physikal Inst 1, Aachen, Germany 10.Tech Univ Dortmund, Fak Phys, Dortmund, Germany |
| 推荐引用方式 GB/T 7714 | Aaij, R.,Adeva, B.,Adinolfi, M.,et al. Measurement of cp asymmetry in b-s(0) -> (dsk +/-)-k--/+ decays[J]. Journal of high energy physics,2018(3):28. |
| APA | Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2018).Measurement of cp asymmetry in b-s(0) -> (dsk +/-)-k--/+ decays.Journal of high energy physics(3),28. |
| MLA | Aaij, R.,et al."Measurement of cp asymmetry in b-s(0) -> (dsk +/-)-k--/+ decays".Journal of high energy physics .3(2018):28. |
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来源：高能物理研究所
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