Strange axial-vector mesons mixing angle

Details Strange axial-vector mesons mixing angle Strange axial-vector mesons mixing angle

2006-06-29

arxiv.org/abs/hep-ph/0606297v1

Eur.Phys.J.A28:369-373,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 papes, to appear in Eur. Phys. J. A

Scientific paper

10.1140/epja/i2006-10067-y

The masses of the $K_1(^3P_1)$ and $K_1(^1P_1)$ are considered in a nonrelativistic constituent quark model, and the absolute value of the $K_1(^3P_1)-K_1(^1P_1)$ mixing angle is determined to be about $59.29^\circ$. Comparison of the theoretical predictions on the strong decay widths of the $K_1(1270)$ and $K_1(1400)$ in the $^3P_0$ decay model as well as the production ratio of these two states in the $\tau$ decay between the available experimental data strongly favors that the $K_1(^3P_1)-K_1(^1P_1)$ mixing angle is about $+59.29^\circ$.

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