论文标题
由弱磁力和质子后坐力引起的O(E^2_e/m^2_n)的命令(E^2_e/m^2_n)的校正,为中子β衰变的中子寿命和相关系数
Corrections of order O(E^2_e/m^2_N), caused by weak magnetism and proton recoil, to the neutron lifetime and correlation coefficients of the neutron beta decay
论文作者
论文摘要
我们计算O(e^2_e/m^2_n)〜10^{ - 5}的弱磁力和质子后坐力的贡献,即,在大细胞核质量扩张中对近代到领先顺序,对中子寿命和中性β衰减的相关系数,e_e and e_e and e__n和m _ nsection and ectos and e e e e e_e and s s e e e e e e e_e and s s e e e e e e and section and s e e e e e_e and s e e e ect and s e e nece and ecte and。我们分析了具有偏振中子,偏振电子和非极化质子的中子β衰减的电子能量和角分布。以及威尔金森的校正(Nucl。Phys。A377,474(1982)和O级O(alpha e_e/m_n)〜10^{ - 5}的辐射校正(Phys。D99,093006(2019)),计算为下一至领先的nucreon Mass $ m_n $ M_N $ M_N $ M_N $ M_N $ M_N O(Alpha/pi)(物理学修订版164,1767(1967)),o(e^2_e/m^2_n)〜10^{ - 5}的校正提供了改进的中性β衰减理论背景的精度,在标准模型中计算出标准互动的实验搜索。
We calculate the contributions of weak magnetism and proton recoil of order O(E^2_e/m^2_N)~10^{-5}, i.e. to next-to-next-to-leading order in the large nucleon mass expansion, to the neutron lifetime and correlation coefficients of the neutron beta decay, where E_e and m_N are the electron energy and the nucleon mass, respectively. We analyze the electron-energy and angular distribution for the neutron beta decay with a polarized neutron, a polarized electron and an unpolarized proton. Together with Wilkinson's corrections (Nucl. Phys. A 377, 474 (1982) and radiative corrections of order O(alpha E_e/m_N) ~ 10^{-5} (Phys. Rev. D 99, 093006 (2019)), calculated as next--to--leading order corrections in the large nucleon mass $m_N$ expansion to Sirlin's corrections of order O(alpha/pi) (Phys. Rev. 164, 1767 (1967)), the corrections of order O(E^2_e/m^2_N) ~ 10^{-5} provide an improved level of precision of the theoretical background of the neutron beta decay, calculated in the Standard Model, for experimental searches of contributions of interactions beyond the Standard Model.