Precision measurement of forward Z boson production in proton-proton collisions at $$ sqrt{mathrm{s}} $$ = 13 TeV

Precision measurement of forward Z boson production in proton-proton collisions at $$ sqrt{mathrm{s}} $$ = 13 TeV
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精确测量 $$ sqrt{mathrm{s}} $$ = 13 TeV 质子-质子碰撞中正向 Z 玻色子的产生

DOI:
10.1007/jhep07(2022)026
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发表时间:
2022
影响因子:
5.4
通讯作者:
P. Alvarez
P. Alvarez
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
R. Aaij;A. S. W. Abdelmotteleb;C. Abellán Beteta;F. Abudinén;T. Ackernley;B. Adeva;M. Adinolfi;H. Afsharnia;C. Agapopoulou;C. A. Aidala;S. Aiola;Z. Ajaltouni;S. Akar;J. Albrecht;F. Alessio;M. Alex;er;A. Alfonso Albero;Z. Aliouche;G. Alkhazov;P. Alvarez

文献摘要

相似文献

摘要 使用 LHCb 探测器收集的 pp 碰撞数据,对前向区域中 $$ sqrt{mathrm{s}} $$ s = 13 TeV 处的 Z 玻色子产生截面进行了精确测量,对应于 5.1 fb − 1 的积分光度。使用定义为伪快速度 2 的基准区域内的 Z → μ + μ − 事件来测量生产横截面。 0 20 GeV /c 对于 μ 子和二 μ 子不变质量 60 σ Z → μ + μ − = 196.4 ± 0.2 ± 1.6 ± 3.9 pb ,其中第一个不确定性是统计的,第二个是系统的,第三个是由于光度确定造成的。在不确定性范围内,测量结果与理论预测一致。
A bstract A precision measurement of the Z boson production cross-section at $$ sqrt{mathrm{s}} $$ s = 13 TeV in the forward region is presented, using pp collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.1 fb − 1 . The production cross-section is measured using Z → μ + μ − events within the fiducial region defined as pseudorapidity 2 . 0 20 GeV /c for both muons and dimuon invariant mass 60 σ Z → μ + μ − = 196.4 ± 0.2 ± 1.6 ± 3.9 pb , where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measured results are in agreement with theoretical predictions within uncertainties.