Production and sequential decays of charmed hyperons

Abstract

We investigate production and decay of the ${\Lambda }_c^{+}$ hyperon. The production considered is through the $e^{+}{e}^{-}$ annihilation channel, $e^{+}{e}^{-}\to {\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$, with summation over the ${\bar{\Lambda }}_c^{-}$ anti-hyperon spin directions. It is in this situation that the ${\Lambda }_c^{+}$ decay chain is identified. Two kinds of sequential decays are studied. The first one is the doubly weak decay $B_1\to B_2{M}_2$, followed by $B_2\to B_3{M}_3$. The other one is the mixed weak-electromagnetic decay $B_1\to B_2{M}_2$, followed by $B_2\to B_3\gamma$. In both schemes $B$ denotes baryons and $M$ mesons. We should also mention that the initial state of the ${\Lambda }_c^{+}$ hyperon is polarized.

arXiv commentAdded application

References in corpus (3)

• Hadronic structure functions in the $e^{+}{e}^{-}\to \bar{\Lambda }\Lambda$ reaction
• Polarization observables in the $e^{+}{e}^{-}\to \bar{\Lambda }\Lambda$ reaction
• Charmed baryon decay asymmetry in e+e- annihilation

Cited by in corpus (9)

• Polarization observables in $e^{+}{e}^{-}$ annihilation to a baryon-antibaryon pair
• Measurements of Weak Decay Asymmetries of ${\Lambda }_c^{+}\to p{K}_S^0$, $\Lambda {\pi }^{+}$, ${\Sigma }^{+}{\pi }^0$, and ${\Sigma }^0{\pi }^{+}$
• First Measurement of the Decay Asymmetry in the pure W-boson-exchange Decay ${\Lambda }_c^{+}\to {\Xi }^0{K}^{+}$
• Production and decay of polarized hyperon-antihyperon pairs
• Production and decay of hyperons in a transversely polarized electron-positron collider
• Sequential hyperon decays in the reaction $e^{+}{e}^{-}\to {\Sigma }^0{\bar{\Sigma }}^0$
• Novel method to extract the femtometer structure of strange baryons using the vacuum polarization effect
• Electromagnetic transition form factors and Dalitz decays of hyperons
• Entanglement in joint $\Lambda \bar{\Lambda }$ decay; cont