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Strong decays of $K_1$ resonances

Abstract : We investigate the K1--> K pi pi strong interaction decays. Using the 3P0 quark-pair-creation model to derive the basic parametrization, we discuss in detail how to obtain the various partial wave amplitudes into the possible quasi-two-body decay channels as well as their relative phases from the currently available experimental data. We obtain the K1 mixing angle to be thetaK1= 60 deg, in agreement with previous works. Our study can be applied to extract the information needed for the photon polarization determination of the radiative B--> K1 gamma decay.
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http://hal.in2p3.fr/in2p3-00646055
Contributor : Sabine Starita <>
Submitted on : Tuesday, November 29, 2011 - 10:07:36 AM
Last modification on : Wednesday, September 16, 2020 - 4:21:36 PM

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A. Tayduganov, E. Kou, A. Le Yaouanc. Strong decays of $K_1$ resonances. Physical Review D, American Physical Society, 2012, 85, pp.074011. ⟨10.1103/PhysRevD.85.074011⟩. ⟨in2p3-00646055⟩

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