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Measurement of branching fractions of hadronic decays of the $$Omega_c^0$$ baryon

$$Omega_c^0$$バリオンの崩壊分岐比の測定

Yelton, J.*; 谷田 聖; Belle Collaboration*; 他187名*

Yelton, J.*; Tanida, Kiyoshi; Belle Collaboration*; 187of others*

Using a data sample of 980 $${rm fb}^{-1}$$ of $$e^+e^-$$ annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy $$e^+e^-$$ collider, we report the results of a study of the decays of the $$Omega_c^0$$ charmed baryon into hadronic final states. We report the most precise measurements to date of the relative branching fractions of the $$Omega_c^0$$ into $$Omega^-pi^+pi^0$$, $$Omega^-pi^+pi^-pi^+$$, $$Xi^-K^-pi^+pi^+$$, and $$Xi^0K^-pi^+$$, as well as the first measurements of the branching fractions of the $$Omega_c^0$$ into $$Xi^-bar{K}^0pi^+$$, $$Xi^0bar{K}^0$$, and $$Lambda bar{K}^0bar{K}^0$$, all with respect to the $$Omega^-pi^+$$ decay. In addition, we investigate the resonant substructure of these modes. Finally, we present a limit on the branching fraction for the decay $$Omega_c^0toSigma^+K^-K^-pi^+$$.

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パーセンタイル:64.74

分野:Astronomy & Astrophysics

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