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تسجيل مستخدم جديدCoupling constants of $D^*D_sK$ and $D_s^*DK$ processes
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We calculate the coupling constants of $D^*D_sK$ and $D_s^*DK$ vertices using the QCD sum rules technique. We compare results obtained in the limit of SU(4) symmetry and found that the symmetry is broken on the order of 40%.
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