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Theoretical determination of K-1(1270,1400) mixing angle in QCD

Dag, Huseyin
Özpineci, Altuğ
Cagil, Ayce
In quark model, the strange axial vector mesons K1(1270) and K1(1400) are defined as the mixtures of orbital angular momentum states K1A and K1B. In this work, by using the orthogonality of the mass eigenstates, we have estimated the K1(1270, 1400) mixing angle θK1, where we have found that θK1 sime −(39 ± 4)°.