Measurement of the transverse polarization of ? and ? ¯ hyperons produced in proton-proton collisions at s = 7 TeV using the ATLAS detector
Measurement of the transverse polarization of ? and ? ¯ hyperons produced in proton-proton collisions at s = 7 TeV using the ATLAS detector
复制标题
横向偏振的测量？
DOI：
10.1103/physrevd.91.032004
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发表时间：
2015
影响因子：
5
通讯作者：
Aad G
中科院分区：
文献类型：
--
作者：
Aad G
测量了质子-质子碰撞中质心能量为 7 TeV 时产生的超子和超子的横向极化。分析使用了 LHC 的 ATLAS 探测器于 2010 年收集的最小偏差数据。测量到的费曼横向偏振平均为 0.01，横向动量为 0.8 至 15 GeV。它也被测量为 和 的函数，但没有观察到对这些变量的显着依赖性。在此测量之前，在固定目标实验中测量了极化，其质心能量高达约 40 GeV。 ATLAS 结果与从先前测量到本次测量所覆盖范围的拟合外推兼容。
The transverse polarization ofandhyperons produced in proton-proton collisions at a center-of-mass energy of 7 TeV is measured. The analysis usesof minimum bias data collected by the ATLAS detector at the LHC in the year 2010. The measured transverse polarization averaged over Feynmanfromto 0.01 and transverse momentumfrom 0.8 to 15 GeV isforandfor. It is also measured as a function ofand, but no significant dependence on these variables is observed. Prior to this measurement, the polarization was measured at fixed-target experiments with center-of-mass energies up to about 40 GeV. The ATLAS results are compatible with the extrapolation of a fit from previous measurements to therange covered by this measurement.