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来自大型强子对撞机在[公式：见原文]和13 TeV时前向重夸克产生比率的胶子部分子分布函数约束。

Gluon PDF constraints from the ratio of forward heavy-quark production at the LHC at [Formula: see text] and 13 TeV.

作者信息

Cacciari Matteo, Mangano Michelangelo L, Nason Paolo

机构信息

Université Paris Diderot, 75013 Paris, France.

Sorbonne Universités, UPMC Univ Paris 06, UMR 7589, LPTHE, 75005 Paris, France.

出版信息

Eur Phys J C Part Fields. 2015;75:610. doi: 10.1140/epjc/s10052-015-3814-x. Epub 2015 Dec 22.

DOI:10.1140/epjc/s10052-015-3814-x
PMID:26778917
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4704705/
Abstract

We discuss production of charm and bottom quarks at forward rapidity in collisions at the LHC, updating the QCD predictions for the run at [Formula: see text] TeV. We show that, while the absolute rates suffer from large theoretical systematics, dominated by scale uncertainties, the increase relative to the rates precisely measured at 7 TeV can be predicted with an accuracy of a few percent, sufficient to highlight the sensitivity to the gluon distribution function.

摘要

我们讨论了大型强子对撞机（LHC）碰撞中前向快度下粲夸克和底夸克的产生情况，更新了对[公式：见正文] TeV运行的量子色动力学（QCD）预测。我们表明，虽然绝对产率受到以标度不确定性为主的较大理论系统误差的影响，但相对于在7 TeV精确测量的产率的增加可以以百分之几的精度进行预测，这足以突出对胶子分布函数的敏感性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/59468727820c/10052_2015_3814_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/cb51ef2e22db/10052_2015_3814_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/efda38b981d0/10052_2015_3814_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/693f98722469/10052_2015_3814_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/ee6f4e5113c2/10052_2015_3814_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/fc2d3b5340ef/10052_2015_3814_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/dd303c2303a6/10052_2015_3814_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/48e2cf37ec60/10052_2015_3814_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/28cab72050a0/10052_2015_3814_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/e645237fa07a/10052_2015_3814_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/84b4cdb066c4/10052_2015_3814_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/0270ca8a963c/10052_2015_3814_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/c35e839da475/10052_2015_3814_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/59468727820c/10052_2015_3814_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/cb51ef2e22db/10052_2015_3814_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/efda38b981d0/10052_2015_3814_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/693f98722469/10052_2015_3814_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/ee6f4e5113c2/10052_2015_3814_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/fc2d3b5340ef/10052_2015_3814_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/dd303c2303a6/10052_2015_3814_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/48e2cf37ec60/10052_2015_3814_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/28cab72050a0/10052_2015_3814_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/e645237fa07a/10052_2015_3814_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/84b4cdb066c4/10052_2015_3814_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/0270ca8a963c/10052_2015_3814_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/c35e839da475/10052_2015_3814_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e7cd/4704705/59468727820c/10052_2015_3814_Fig13_HTML.jpg

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