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与一个粲夸克喷注相关联的W玻色子产生的精确量子色动力学预测。

Precise QCD predictions for W-boson production in association with a charm jet.

作者信息

Ridder A Gehrmann-De, Gehrmann T, Glover E W N, Huss A, Garcia A Rodriguez, Stagnitto G

机构信息

Institute for Theoretical Physics, ETH, 8093 Zurich, Switzerland.

Department of Physics, University of Zürich, 8057 Zurich, Switzerland.

出版信息

Eur Phys J C Part Fields. 2024;84(4):361. doi: 10.1140/epjc/s10052-024-12715-8. Epub 2024 Apr 4.

DOI:10.1140/epjc/s10052-024-12715-8
PMID:39050985
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11266306/
Abstract

The production of a -boson with a charm quark jet provides a highly sensitive probe of the strange quark distribution in the proton. Employing a novel flavour dressing procedure to define charm quark jets, we compute +charm-jet production up to next-to-next-to-leading order (NNLO) in QCD. We study the perturbative stability of production cross sections with same-sign and opposite-sign charge combinations for the boson and the charm jet. A detailed breakdown according to different partonic initial states allows us to identify particularly suitable observables for the study of the quark parton distributions of different flavours.

摘要

伴随一个含魅夸克喷注的玻色子产生过程为质子中奇异夸克分布提供了一个高灵敏度的探针。采用一种新颖的味修饰程序来定义魅夸克喷注，我们在量子色动力学（QCD）中计算了伴随魅喷注产生过程至次下一个领先阶（NNLO）。我们研究了玻色子和魅喷注具有同号和异号电荷组合时产生截面的微扰稳定性。根据不同的部分子初始态进行详细分解，使我们能够确定特别适合用于研究不同味夸克部分子分布的可观测量。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/d0fb8f8b4555/10052_2024_12715_Fig15_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/52a4aced4441/10052_2024_12715_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/9ddd7fe1c75e/10052_2024_12715_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/aa10d09b0933/10052_2024_12715_Fig3_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/e6780bdf1086/10052_2024_12715_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/e73cd5f41488/10052_2024_12715_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/e49315b477c2/10052_2024_12715_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/be4a050b9d64/10052_2024_12715_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/b679158df547/10052_2024_12715_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/1c2cb28029c6/10052_2024_12715_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/2af40eb3bde3/10052_2024_12715_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/7559148fe893/10052_2024_12715_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/fcadd5019059/10052_2024_12715_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/a5c04339551c/10052_2024_12715_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/347f/11266306/d0fb8f8b4555/10052_2024_12715_Fig15_HTML.jpg

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