Updated determination of d-0-(d)over-bar(0) mixing and cp violation parameters with d-0 -> k+ pi(-) decays
文献类型：期刊论文
| 作者 | Aaij, R.40; Adeva, B.39; Adinolfi, M.48; Ajaltouni, Z.5; Akar, S.59; Albrecht, J.10; Alessio, F.40; Alexander, M.53; Alfonso Albero, A.38,49,60; Ali, S.43 |
| 刊名 | Physical review d
 |
| 出版日期 | 2018-02-22 |
| 卷号 | 97期号:3页码:11 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.97.031101 |
| 通讯作者 | Aaij, r.() |
| 英文摘要 | We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of d-0 -> k+pi(-) to d-0 -> k-pi(+) rates. the analysis uses a data sample of proton-proton collisions corresponding to an integrated luminosity of 5.0 fb(-1) recorded by the lhcb experiment from 2011 through 2016. assuming charge-parity (cp) symmetry, the mixing parameters are determined to be x'(2) = (3.9 +/- 2.7) x 10(-5), y' = (5.28 +/- 0.52) x 10(-3), and r-d = (3.454 +/- 0.031) x 10(-3). without this assumption, the measurement is performed separately for d-0 and (d) over bar (0) mesons, yielding a direct cp-violating asymmetry a(d) = (-0.1 +/- 9.1) x 10(-3), and magnitude of the ratio of mixing parameters 1.00 < vertical bar q/p vertical bar < 1.35 at the 68.3% confidence level. all results include statistical and systematic uncertainties and improve significantly upon previous single-measurement determinations. no evidence for cp violation in charm mixing is observed. |
| WOS关键词 | D-0(D)OVER-BAR(0) ; PHYSICS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000425742600001 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178234 |
| 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 Grenoble Alpes, Univ Savoie Mont Blanc, CNRS, LAPP IN2P3, Annecy, France 5.Clermont Univ, Univ Blaise Pascal, CNRS IN2P3, LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CNRS IN2P3, CPPM, Marseille, France 7.Univ Paris 11, Univ Paris Saclay, CNRS IN2P3, LAL, Orsay, France 8.Univ Paris 06, Univ Paris Diderot, CNRS IN2P3, 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. Updated determination of d-0-(d)over-bar(0) mixing and cp violation parameters with d-0 -> k+ pi(-) decays[J]. Physical review d,2018,97(3):11. |
| APA | Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2018).Updated determination of d-0-(d)over-bar(0) mixing and cp violation parameters with d-0 -> k+ pi(-) decays.Physical review d,97(3),11. |
| MLA | Aaij, R.,et al."Updated determination of d-0-(d)over-bar(0) mixing and cp violation parameters with d-0 -> k+ pi(-) decays".Physical review d 97.3(2018):11. |
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