Flavor tagged time-dependent angular analysis of the B s 0 ? J / ? ? decay and extraction of ? G s and the weak phase ? s in ATLAS
Flavor tagged time-dependent angular analysis of the B s 0 ? J / ? ? decay and extraction of ? G s and the weak phase ? s in ATLAS
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B s 0 的风味标记的时间依赖性角度分析？
DOI：
10.1103/physrevd.90.052007
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发表时间：
2014
影响因子：
5
通讯作者：
Aad G
中科院分区：
文献类型：
--
作者：
Aad G
据报道，使用ATLAS探测器从2011年大型强子对撞机记录的碰撞中收集的积分光度，对衰变参数进行了测量，更新后包括了风味标签。物理参数的测量值为ϕs=0.12±0.25(stat)±0.05(syst) radΔΓs=0.053±0.021(stat)±0.010(syst) ps-1Γs=0.677±0.007(stat)±0.004(syst) ps-1|A∥(0)|2=0.220±0.008(stat)±0.009(syst)|A0(0)|2=0.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst) radwhere，该参数被约束为正。测量了-波的贡献，发现它与零相容。结果也以68%和95%的似然等值线表示，显示出与标准模型预期的一致性。
A measurement of thedecay parameters, updated to include flavor tagging is reported usingof integrated luminosity collected by the ATLAS detector fromcollisions recorded in 2011 at the LHC. The values measured for the physical parameters are ϕs=0.12±0.25(stat)±0.05(syst) radΔΓs=0.053±0.021(stat)±0.010(syst) ps-1Γs=0.677±0.007(stat)±0.004(syst) ps-1|A∥(0)|2=0.220±0.008(stat)±0.009(syst)|A0(0)|2=0.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst) radwhere the parameteris constrained to be positive. The-wave contribution was measured and found to be compatible with zero. Results forandare also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.