تحلیل QCD تابع ساختار غیریکتای xF3 در پراکندگی ناکشسان ژرف نوترینو-نوکلئون

نوع مقاله: مقاله پژوهشی کامل

نویسندگان

1 گروه فیزیک، دانشکده علوم پایه، دانشگاه سمنان

2 گروه فیزیک ، دانشکده فیزیک ، دانشگاه سمنان ، سمنان، ایران

چکیده

در این مقاله با استفاده از داده‌های تجربی گروه‌های ‏‎ CDHSWوCHORUS‏ ‏CCFR, NuTeV,‎‏ برآنیم تا توابع توزیع ‏ظرفیتی کوارک‌های ‏‎ u ‎و ‏d‏ را در طیف گسترده‌ای از ‏x‏ و2^Q‏ تعیین و آن‌ها را به‌همراه خطاهای همبسته در چارچوب ‏xFitter‏ استخراج کنیم. ما نتایج را برای توابع توزیع کوارک ظرفیتی به‌همراه عدم قطعیت آن‌ها استخراج نموده و با دیگر ‏مدل‌های مختلف مقایسه می‌کنیم. نتایج محاسبات ما برای ثابت جفت‌شدگی قوی در دو تقریب ‏NLO‏ و ‏NNLO‏ با نتایج ‏مدل‌های مختلف و نتایج اخیرPDG ‎‏ در توافق است. نتایج استخراج شده برای توزیع کوارک ظرفیتی با مدل‌های نظری ‏موجود سازگاری خوبی دارد.‏

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

QCD analysis of non-singlet structure function xF3 in deep inelastic neutrino-nucleon scattering

نویسندگان [English]

  • azam ghaffari tooran 1
  • Ali Khorramian 2
1 Physics Department, Semnan University, P.O. Box: 35131-19111, Semnan- Iran
2 Physics Department, Semnan University, P.O. Box: 35131-19111, Semnan- Iran
چکیده [English]

In this paper we intend to determine valence quarks distribution functions u ,d in a wide ‎range of x and Q‏2‏‎, with using experimental data groups such as CCFR, NuTeV, CHORUS ‎and CDHSW , and‏ ‏determine their correlated errors using xFitter framework. We ‎extracted‎ the results for valence quarks distribution functions‎‏ ‏with their uncertainties‎ and ‎compared them with other models. Our results are in agreement with the results of other ‎various models and recent PDG results for strong coupling‏ ‏constant in two approximations ‎NLO and NNLO. The extracted results for valence-quark distributions are in good ‎agreement with available theoretical models.‎

کلیدواژه‌ها [English]

  • QCD Analysis
  • Non-singlet Structure Function
  • Valence Quark
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