Belle Collaboration reported a new observed value of K＊- （892） mass by studying τ^- → Ksπ^-vτ decay, which is significantly different from the current world average value given by Particle Data Group 2006. Moti...Belle Collaboration reported a new observed value of K＊- （892） mass by studying τ^- → Ksπ^-vτ decay, which is significantly different from the current world average value given by Particle Data Group 2006. Motivated by this new data, we revisit the issue on the K^＊0（892）- K^＊±（892） mass splitting. Our theoretical estimation favors the new measurement by Belle Collaboration. Therefore further experimental efforts are urgently needed to improve our understanding of these issues.展开更多
基金Supported by NSFC (10275059, 10775124, 90403021)CAS (KJCX2-SW-N10)
文摘Belle Collaboration reported a new observed value of K＊- （892） mass by studying τ^- → Ksπ^-vτ decay, which is significantly different from the current world average value given by Particle Data Group 2006. Motivated by this new data, we revisit the issue on the K^＊0（892）- K^＊±（892） mass splitting. Our theoretical estimation favors the new measurement by Belle Collaboration. Therefore further experimental efforts are urgently needed to improve our understanding of these issues.
