Constraints on short-lived axions from the decay π+→e+e−e+ν
Constraints on short-lived axions from the decay π+→e+e−e+ν
复制标题
衰变 π+→e+e−e+ν 对短命轴子的约束
DOI:
10.1016/0370-2693(86)90201-7
复制
发表时间:
1986
影响因子:
4.4
通讯作者:
M. Wise
中科院分区:
文献类型:
--
作者:
L. Krauss;M. Wise
Using chiral lagrangian techniques an expected branching ratio of 3×10−6(mu/md)(ma/1.8 MeV)2is calculated for the decay mode π+→ ae+ν, where a is a recently proposed short-lived axion variant, and thus earlier estimates of this rate are corrected. A recent measurement limits the decay π+→ e+e−e+ν at the 10−10level, which clearly rules out such an axion.