First Measurement of the Z→μ+μ− Angular Coefficients in the Forward Region of pp Collisions at s=13 TeV
First Measurement of the Z→μ+μ− Angular Coefficients in the Forward Region of pp Collisions at s=13 TeV
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首次测量 s=13–TeV pp 碰撞前向区域的 Z–Δ–Δ角系数
DOI：
10.1103/physrevlett.129.091801
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发表时间：
2022
影响因子：
8.6
通讯作者：
P. Alvarez
中科院分区：
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
本文首次利用LHCb探测器在质心能量为13 TeV时收集的数据，研究了通过Drell-Yan反应在正向快速区产生的对的角分布，对应的综合光度为。角分布中五个主要项的系数被确定为子子横向动量和速度的函数。这些结果与玻色子产生机制的各种理论预测进行了比较，也可用于探测质子内依赖于横向动量的部分子分布。
The first study of the angular distribution ofpairs produced in the forward rapidity region via the Drell-Yan reactionis presented, using data collected with the LHCb detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of. The coefficients of the five leading terms in the angular distribution are determined as a function of the dimuon transverse momentum and rapidity. The results are compared to various theoretical predictions of the-boson production mechanism and can also be used to probe transverse-momentum-dependent parton distributions within the proton.