...
首页> 外文期刊>Physics Letters, B. Nuclear Physics and High Energy Physics >Measurement of the (B)over-bar(0)-B-0 and (B)over-bars(0)-B-s(0) production asymmetries in pp collisions at root s=7 TeV
【24h】

Measurement of the (B)over-bar(0)-B-0 and (B)over-bars(0)-B-s(0) production asymmetries in pp collisions at root s=7 TeV

机译:在根s = 7 TeV的pp碰撞中测量(B)横杠(0)-B-0和(B)横杠(0)-B-s(0)的生产不对称性

获取原文
获取原文并翻译 | 示例

摘要

The (B) over bar (0)-B-0 and (B) over bar (0)(s)-B-s(0) production asymmetries, A(P)(B-0) and A(P)(B-s(0)), are measured by means of a time-dependent analysis of B-0 -> J/Psi K-*0, B-0 -> D-pi(+) and B-s(0) -> D-s(-)pi(+) decays, using a data sample corresponding to an integrated luminosity of 1.0 fb(-1), collected by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B-0 and B-s(0) mesons within the LHCb acceptance. The production asymmetries, integrated over p(T) and eta in the range 4 < p(T) < 30 GeV/c and 2.5 < eta < 4.5, are determined to be A(P)(B-0) = (-0.35 +/- 0.76 +/- 0.28)% and A(P)(B-s(0)) = (1.09 +/- 2.61 +/- 0.66)%, where the first uncertainties are statistical and the second systematic. (C) 2014 The Authors. Published by Elsevier B.V.
机译:条(0)-B-0上的(B)和条(0)-sBs(0)上的(B)生产不对称性A(P)(B-0)和A(P)(Bs( 0))是通过对B-0-> J / Psi K- * 0,B-0-> D-pi(+)和Bs(0)-> Ds(-)进行时变分析来测量的pi(+)使用与LHCb在pp碰撞中以7 TeV的质心能量在pp碰撞中收集的积分光度1.0 fb(-1)对应的数据样本衰减。根据LHCb接受范围内B-0和B-s(0)介子的横向动量和伪快速度进行测量。确定在4 (T)<30 GeV / c和2.5

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号