1Faculty of Science, Xi’an Jiaotong University, Xi’an
710049
2Department of Physics, Fudan University, Shanghai 200433
3Department of Physics, Portland State University, Portland, OR 97207 USA
Lifetime of Polarized Fermions in Flight
SHI Zhi-Qiang1;NI Guang-Jiong2,3
1Faculty of Science, Xi’an Jiaotong University, Xi’an
710049
2Department of Physics, Fudan University, Shanghai 200433
3Department of Physics, Portland State University, Portland, OR 97207 USA
Abstract： Based on the parity violation in the standard model, we study the dependence of the lifetime on the helicity of an initial-state fermion in weak interactions. It is pointed out that if initial fermions in decays are longitudinally polarized, then the lifetime of right-handed polarized fermions is greater than that of left-handed polarized fermions in flight with the same speed in any one of inertial systems.
SHI Zhi-Qiang;NI Guang-Jiong;. Lifetime of Polarized Fermions in Flight[J]. 中国物理快报, 2002, 19(10): 1427-1429.
SHI Zhi-Qiang, NI Guang-Jiong,. Lifetime of Polarized Fermions in Flight. Chin. Phys. Lett., 2002, 19(10): 1427-1429.
2002, Vol. 19 
