| Measurement of the cp violation parameter a(r) in d-0 -> k+k- and d-0 -> pi(+)pi(-) decays | |
| Aaij, R.40; Adeva, B.39; Adinolfi, M.48; Ajaltouni, Z.5; Akar, S.59; Albrecht, J.10; Alessio, F.40; Alexander, M.53; Ali, S.43; Alkhazov, G.31 | |
| 刊名 | Physical review letters
 |
| 2017-06-28 | |
| 卷号 | 118期号:26页码:9 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.118.261803 |
| 通讯作者 | Aaij, r.() |
| 英文摘要 | Asymmetries in the time-dependent rates of d-0 -> k+k- and d-0 -> pi(+)pi(-)decays are measured in a pp collision data sample collected with the lhcb detector during lhc run 1, corresponding to an integrated luminosity of 3 fb(-1). the asymmetries in effective decay widths between d-0 and (d) over bar (0) decays, sensitive to indirect cp violation, are measured to be a(r)(k+k-) = (-0.30 +/- 0.32 0.10) x 10(-3) and a(r) pi(+)pi(-)) = (0.46 +/- 0.58 +/- 0.12) x 10(-3), where the first uncertainty is statistical and the second systematic. these measurements show no evidence for cp violation and improve on the precision of the previous best measurements by nearly a factor of two. |
| WOS关键词 | MESON |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000404345800001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177303 |
| 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, CNRS, IN2P3, LAPP, Annecy Le Vieux, France 5.Clermont Univ, Univ Blaise Pascal, IN2P3, CNRS,LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CPPM, IN2P3, CNRS, Marseille, France 7.Univ Paris 11, LAL, IN2P3, CNRS, Orsay, France 8.Univ Paris Diderot, Univ Pierre & Marie Curie, IN2P3, CNRS,LPNHE, Paris, France 9.Rhein Westfal TH Aachen, Phys 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 the cp violation parameter a(r) in d-0 -> k+k- and d-0 -> pi(+)pi(-) decays[J]. Physical review letters,2017,118(26):9. |
| APA | Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2017).Measurement of the cp violation parameter a(r) in d-0 -> k+k- and d-0 -> pi(+)pi(-) decays.Physical review letters,118(26),9. |
| MLA | Aaij, R.,et al."Measurement of the cp violation parameter a(r) in d-0 -> k+k- and d-0 -> pi(+)pi(-) decays".Physical review letters 118.26(2017):9. |
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