{"title":"The nuclear shadowing effect of gluon at small x","authors":"B. Rezaei","doi":"10.1016/j.nuclphysa.2024.122971","DOIUrl":null,"url":null,"abstract":"<div><div>The ratio of nuclear gluon distribution functions <span><math><mi>x</mi><msup><mrow><mi>g</mi></mrow><mrow><mi>A</mi></mrow></msup><mo>/</mo><mi>A</mi><mi>x</mi><mi>g</mi></math></span> in the saturation region at small <em>x</em> (i.e., <span><math><mi>x</mi><mo>≲</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>3</mn></mrow></msup></math></span>) for light and heavy nuclei is investigated and compared with the HIJING2.0 model. The moments of the nuclear gluon distribution per nucleon, <span><math><mo><</mo><msup><mrow><mi>x</mi></mrow><mrow><mi>A</mi></mrow></msup><msub><mrow><mo>></mo></mrow><mrow><mi>g</mi></mrow></msub><mo>/</mo><mi>A</mi></math></span>, on a wide range of the scale <em>μ</em> with charm contribution are considered and compared with the parametrization groups. The importance of the binding energy for nuclei is also considered.</div></div>","PeriodicalId":19246,"journal":{"name":"Nuclear Physics A","volume":"1053 ","pages":"Article 122971"},"PeriodicalIF":1.7000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Physics A","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0375947424001532","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
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Abstract
The ratio of nuclear gluon distribution functions in the saturation region at small x (i.e., ) for light and heavy nuclei is investigated and compared with the HIJING2.0 model. The moments of the nuclear gluon distribution per nucleon, , on a wide range of the scale μ with charm contribution are considered and compared with the parametrization groups. The importance of the binding energy for nuclei is also considered.
期刊介绍：
Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.
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