B-hadron production at the LHC from bottom-quark pair production at NNLO plus PS

被引：7
|
作者：
Mazzitelli, Javier [1 ]
Ratti, Alessandro [2 ]
Wiesemann, Marius [2 ]
Zanderighi, Giulia [2 ,3 ]
机构：
[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[2] Max Planck Inst Phys & Astrophys, Fohnnger Ring 6, D-80805 Munich, Germany
[3] Tech Univ Munich, James Franck Str 1, D-85748 Garching, Germany
来源：
PHYSICS LETTERS B | 2023年 / 843卷
关键词：
PRODUCTION CROSS-SECTION; PP COLLISIONS; HEAVY QUARKS; ROOT-S=7 TEV; HADROPRODUCTION; FRAGMENTATION; DECAYS;
D O I：
10.1016/j.physletb.2023.137991
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The production of B hadrons is among the most abundant fundamental QCD processes measured at the LHC. We present for the first time predictions for this process accurate to next-to-next-to-leading order in QCD perturbation theory by simulating bottom-quark pair production at this accuracy matched to parton showers. Our novel results are in good agreement with experimental data for the production of different types of B hadrons from ATLAS, CMS and LHCb at 7 TeV and/or 13 TeV, including various fiducial cross sections as well as single- and double-differential distributions, and 13 TeV/7 TeV cross-section ratios.& COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.
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页数：10
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