Neutrino-deuteron reactions at solar neutrino energies in pionless effective field theory with dibaryon fields
Neutrino-deuteron reactions at solar neutrino energies in pionless effective field theory with dibaryon fields
复制标题
二重子场无介子有效场理论中太阳中微子能量的中微子-氘核反应
DOI：
10.1103/physrevc.101.054001
复制
发表时间：
2019
影响因子：
3.1
通讯作者：
C. H. Hyun
中科院分区：
文献类型：
--
作者：
S. Ando;Young;C. H. Hyun
研究了中微子在中性的$\nu d\to \nu np$，$\bar{\nu} d\to \bar{\nu} np$和带电的$\bar{\nu} d\to e^+ nn $，$\nu d\to e^- pp$过程中引起的氘核分裂.本文用含重子场的无介子有效场理论计算了中微子能量从阈到20 MeV的总截面。振幅被扩展到次超前阶，并且部分波被截断在$P $波。将两质子间的库仑相互作用非微扰地包含在反应振幅中，得到了反应振幅的解析表达式。在E_nu = 20$ MeV时，次领先级对总截面的贡献在5.2$-9.9%之间，P $波对总截面的贡献在2.4$-2.8%之间。由轴向等矢量低能常数引起的不确定性估计约为1%。
We study breakup of the deuteron induced by neutrinos in the neutral $\nu d\to \nu np$, $\bar{\nu} d\to \bar{\nu} np$ and the charged $\bar{\nu} d\to e^+ n n$, $\nu d\to e^- pp$ processes. Pionless effective field theory with dibaryon fields is used to calculate the total cross sections for neutrino energies $E_\nu$ from threshold to 20 MeV. Amplitudes are expanded up to next-to-leading order, and the partial wave is truncated at $P$-waves. The Coulomb interaction between two protons is included nonperturbatively in the reaction amplitudes, and an analytic expression of the amplitudes is obtained. The contribution of the next-to-leading order to the total cross section is in the range of 5.2$-$9.9\% in magnitude, and that of the $P$-wave is 2.4$-$2.8\% at $E_\nu = 20$ MeV. Uncertainty arising from an axial isovector low-energy constant is estimated to be on the order of 1\%.
3He有效场论
影响因子：
1.6
作者：
Ando S
通讯作者：
Ando S
影响因子：
4.4
作者：
S. Ando;J. W. Shin;C. H. Hyun;S. W. Hong;U. K.KuboderaSungkyunkwan;U. Manchester;U. Daegu;U. O. N. Carolina
通讯作者：
S. Ando;J. W. Shin;C. H. Hyun;S. W. Hong;U. K.KuboderaSungkyunkwan;U. Manchester;U. Daegu;U. O. N. Carolina