Measurements of the s-wave fraction in b-0 -> k+ pi(-) mu(+) mu(-) decays and the b-0 -> k*(892)(0) mu(+) mu(-) differential branching fraction
文献类型：期刊论文
| 作者 | Aaij, R.; Adeva, B.; Adinolfi, M.49; Ajaltouni, Z.5; Akar, S.6; Albrecht, J.10; Alessio, F.; Alexander, M.54; Ali, S.43; Alkhazov, G.31 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2016-11-08 |
| 期号 | 11页码:30 |
| ISSN号 | 1029-8479 |
| 关键词 | B physics Hadron-hadron scattering (experiments) Rare decay |
| DOI | 10.1007/jhep11(2016)047 |
| 通讯作者 | Petridis, k.(konstantinos.petridis@cern.ch) |
| 英文摘要 | A measurement of the differential branching fraction of the decay b-0 -> k* (892)(0) mu(+)mu(-) is presented together with a determination of the s-wave fraction of the k+ pi(-) system in the decay b-0 -> k+ pi-mu(+)mu(-). the analysis is based on pp-collision data corresponding to an integrated luminosity of 3 fb(-1) collected with the lhcb experiment. the measurements are made in bins of the invariant mass squared of the dimuon system, q(2). precise theoretical predictions for the differential branching fraction of b-0 -> k* (892)(0) mu(+) mu(-) decays are available for the q(2) region 1.1 < q(2) < 6.0 gev2/c(4). in this q(2) region, for the k+pi(-) invariant mass range 796 < m(k pi) < 996mev/c(2), the s-wave fraction of the k+pi(-) system in b-0 -> k+pi(-)mu(+)mu(-) decays is found to be f-s - 0.101 +/- 0.017(stat) +/- 0: 009(syst), and the differential branching fraction of b-0 -> k* (892)(0) mu(+)mu(-) decays is determined to be db/dq(2) = (0.392(-0.019)(+ 0.020)(stat) +/- 0.010(syst) +/- 0.027(norm)) x 10(-7) c(4)/gev2. the differential branching fraction measurements presented are the most precise to date and are found to be in agreement with standard model predictions. |
| WOS关键词 | PHYSICS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000388175800001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176625 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Petridis, K. |
| 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, LAPP, CNRS IN2P3, Annecy Le Vieux, France 5.Univ Clermont Ferrand, Clermont Univ, CNRS IN2P3, LPC, Clermont Ferrand, France 6.Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France 7.Univ Paris 11, CNRS IN2P3, LAL, Orsay, France 8.Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, CNRS IN2P3, 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. Measurements of the s-wave fraction in b-0 -> k+ pi(-) mu(+) mu(-) decays and the b-0 -> k*(892)(0) mu(+) mu(-) differential branching fraction[J]. Journal of high energy physics,2016(11):30. |
| APA | Aaij, R..,Adeva, B..,Adinolfi, M..,Ajaltouni, Z..,Akar, S..,...&Zucchelli, S..(2016).Measurements of the s-wave fraction in b-0 -> k+ pi(-) mu(+) mu(-) decays and the b-0 -> k*(892)(0) mu(+) mu(-) differential branching fraction.Journal of high energy physics(11),30. |
| MLA | Aaij, R.,et al."Measurements of the s-wave fraction in b-0 -> k+ pi(-) mu(+) mu(-) decays and the b-0 -> k*(892)(0) mu(+) mu(-) differential branching fraction".Journal of high energy physics .11(2016):30. |
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