https://doi.org/10.1140/epja/i2006-10067-y
Hadron Physics
Strange axial-vector mesons mixing angle
Department of Physics, Zhengzhou University, 450052, Henan, PRC
* e-mail: lidm@zzu.edu.cn
Received:
26
April
2006
Accepted:
27
June
2006
Published online:
11
July
2006
The masses of K 1(3 P 1) and K 1(1 P 1) are considered in a nonrelativistic constituent quark model, and the absolute value of the K 1(3 P 1)- K 1(1 P 1) mixing angle is determined to be about 59.29°. The comparison of the theoretical predictions on the strong decay widths of K 1(1270) and K 1(1400) in the 3 P 0 decay model as well as the production ratio of these two states in the τ decay between the available experimental data strongly favors that the K 1(3 P 1)- K 1(1 P 1) mixing angle is about +59.29°.
PACS: 14.40.Ev Other strange mesons – / 12.39.Jh Nonrelativistic quark model – / 13.25.-k Hadronic decays of mesons – / 13.35.Dx Decays of taus –
© Società Italiana di Fisica and Springer-Verlag, 2006
