A note on the mass splitting of K*(892)
- Received Date: 2008-01-09
- Accepted Date: 2008-02-04
- Available Online: 2008-11-05
Belle Collaboration reported a new observed value of K*－(892) mass by studying τ－→ KSπ－ντ 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.