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arXiv 1006.3015nucl-exhep-ex
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在RHIC上极化p+p碰撞中的$W$玻色子产生

$W$ Boson Production in Polarized p+p Collisions at RHIC

Justin R. Stevens

摘要:

在RHIC纵向极化$\vec{p}+\vec{p}$碰撞中产生的$W^{\pm}$玻色子为研究质子海夸克分布的自旋味不对称性提供了一种新的手段。详细的$W^{\pm}$事件选择中快度的$e^{\pm}$衰变通道,随着生产截面和宇称违反单自旋不对称性,$A_L$,从星合作的2009年数据在$\sqrt{s}=500$ GeV的初步结果。

英文摘要:

The production of $W^{\pm}$ bosons in longitudinally polarized $\vec{p}+\vec{p}$ collisions at RHIC provides a new means of studying the spin-flavor asymmetries of the proton sea quark distributions. Details of the $W^{\pm}$ event selection in the $e^{\pm}$ decay channel at mid-rapidity are presented, along with preliminary results for the production cross section and parity-violating single-spin asymmetry, $A_L$, from the STAR Collaboration's 2009 data at $\sqrt{s}=500$ GeV.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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