标题： 太阳 hep 过程在有效场论中 显示英文标题

标题： The Solar hep Process in Effective Field Theory

摘要： 使用有效场论，我们在完全无参数的框架下计算了hep过程的S因子。 跃迁算符按照手征计数进行组织，其矩阵元通过在关联超球谐方法中获得的真实核波函数进行评估。 考虑了重子手征微扰理论中至下一下一下一阶的项。 通过拟合氚的\beta 衰变率来确定理论中的唯一参数，我们预测的hep S因子精度优于\sim 20%。 显示英文摘要

摘要： Using effective field theory, we calculate the S-factor for the hep process in a totally parameter-free formulation. The transition operators are organized according to chiral counting, and their matrix elements are evaluated using the realistic nuclear wave functions obtained in the correlated-hyperspherical-harmonics method. Terms of up to next-to-next-to-next-to-leading order in heavy-baryon chiral perturbation theory are considered. Fixing the only parameter in the theory by fitting the tritium \beta-decay rate, we predict the hep S-factor with accuracy better than \sim 20 %.