{"title":"Analysis of 1/Nc Corrections in the Quark Model for the Pion Transition Form Factor","authors":"N. A. Savkova, A. E. Radzhabov","doi":"10.1134/S1547477124700596","DOIUrl":null,"url":null,"abstract":"<p><span>\\(1{\\text{/}}{{N}_{c}}\\)</span> corrections in the framework of nonlocal quark model are analyzed. The initial stage of generating diagrams is carried out in the QGRAF program. The data generated by QGRAF is processed and diagrams are selected with <span>\\(1{\\text{/}}{{N}_{c}}\\)</span> counting rules. The diagrams are classified to certain types. Subsequently, the expressions are transferred to the FORM analytical calculation program. The analysis of the Feynman diagrams for the pion transition form factor is performed.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"21 4","pages":"564 - 566"},"PeriodicalIF":0.4000,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei Letters","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1547477124700596","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
引用次数: 0
Abstract
\(1{\text{/}}{{N}_{c}}\) corrections in the framework of nonlocal quark model are analyzed. The initial stage of generating diagrams is carried out in the QGRAF program. The data generated by QGRAF is processed and diagrams are selected with \(1{\text{/}}{{N}_{c}}\) counting rules. The diagrams are classified to certain types. Subsequently, the expressions are transferred to the FORM analytical calculation program. The analysis of the Feynman diagrams for the pion transition form factor is performed.
\分析了非局部夸克模型框架下的（1{text{/}}{N}_{c}}\）修正。生成图表的初始阶段在 QGRAF 程序中进行。对QGRAF生成的数据进行处理，用\(1{text{/}}{{N}_{c}}\)计数规则选择图表。图表被归类为某些类型。随后，这些表达式被转入 FORM 分析计算程序。对先驱转变形式因子的费曼图进行了分析。
期刊介绍：
The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.
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