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arXiv 1504.07574hep-phhep-ex
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有限横动量下$Z$ -玻色子强子产生的电弱修正

Electroweak corrections to $Z$-boson hadroproduction at finite transverse momentum

W. Hollik, B. A. Kniehl, E. S. Shcherbakova, O. L. Veretin

摘要:

计算了${\cal O}(α^2α_s)$对有限横动量下单个$Z$ -玻色子包含强子产生截面($p_T$)的全单圈电弱辐射修正.这包括对$Z+j$产生的${\cal O}(α)$修正,对$Z+γ$产生的${\cal O}(α_s)$修正,以及某些涉及单个夸克迹线的QCD-电弱干涉贡献。我们首次恢复了QCD和纯弱修正,并研究了QED修正和QCD-电弱干涉的贡献。我们还考虑了弹性和非弹性散射中的直接和分辨光生。我们目前的$p_T$和快度分布的实验条件下,在费米实验室Tevatron和欧洲核子研究中心LHC和评估的各种贡献的意义。

英文摘要:

We calculate the full one-loop electroweak radiative corrections, of ${\cal O}(α^2α_s)$, to the cross section of single $Z$-boson inclusive hadroproduction at finite transverse momentum ($p_T$). This includes the ${\cal O}(α)$ corrections to $Z+j$ production, the ${\cal O}(α_s)$ corrections to $Z+γ$ production, and certain QCD-electroweak interference contributions involving a single quark trace. We recover the QCD and purely weak corrections and study the QED corrections and the QCD-electroweak interference contributions for the first time. We also consider direct and resolved photoproduction in elastic and inelastic scattering. We present $p_T$ and rapidity distributions for the experimental conditions at the Fermilab Tevatron and the CERN LHC and assess the significance of the various contributions.

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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