arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0907.4498hep-ph
收藏

$pp$和$AA$碰撞中低质量双轻子的产生

Low-mass dilepton production in $pp$ and $AA$ collisions

Zhong-Bo Kang, Jian-Wei Qiu, Werner Vogelsang

摘要:

采用因子化QCD方法描述了在$pp$碰撞中产生的低质量轻子对的横动量分布,当对的横动量$Q_T \gg Q$,其不变质量$Q$低至$Q \sim Λ_{\mathrm{QCD}}$时.我们将这种形式主义扩展到$AA$碰撞中的双轻子产生,包括部分子多重散射引起的核相关功率校正。

英文摘要:

We adopt a factorized QCD formalism to describe the transverse momentum distribution of low-mass lepton pairs produced in $pp$ collisions, when the pair transverse momentum $Q_T \gg Q$, with the pair's invariant mass $Q$ as low as $Q \sim Λ_{\mathrm{QCD}}$. We extend this formalism to dilepton production in $AA$ collisions by including the nuclear-dependent power correction due to parton multiple scattering.

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。

↑