کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1837043 1527132 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Importance of sea contribution to nucleons
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Importance of sea contribution to nucleons
چکیده انگلیسی

We studied the statistical model of nucleons consisting of sea having various quark–gluon Fock states in addition to valence quarks. Using statistical consideration and taking 86% of the total Fock states contributing to the low energy properties of nucleon, we aim to find the contributions to these properties coming from the scalar, vector and tensor sea. We checked its validity against the assumption where the contributions from scalar and tensor sea have been suppressed and justified to be unimportant. We took the approximation that sea is getting a zero contribution from and in three gluon states. Under the above considerations, the calculated magnetic moment, spin distribution and weak decay coupling constant ratio for proton and neutron states have been tabulated. We hereby confirm that the suppression of the scalar and tensor sea leads to modification in the parameters of the nucleons showing deviation from the experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 889, 1 September 2012, Pages 18-28