First Measurements of $\chi_{cJ}\rightarrow \Sigma^{-} \bar{\Sigma}^{+} (J = 0, 1, 2)$ Decays
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.092002
Abstract: We measured the branching fractions of the decays χcJ→Σ-Σ¯+ for the first time using the final states nn¯π+π-. The data sample exploited here is 448.1×106 ψ(3686) events collected with BESIII. We find B(χcJ→Σ-Σ¯+)=(51.3±2.4±4.1)×10-5,(5.7±1.4±0.6)×10-5, and (4.4±1.7±0.5)×10-5, for… read more here.
Keywords: rightarrow sigma; measurements chi; decays first; chi rightarrow ... See more keywords
Study of electromagnetic Dalitz decays $\chi_{cJ} \rightarrow \mu^{+}\mu^{-}J/\psi$
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.051101
Abstract: Using 4.48 x 10(8) psi(3686) events collected with the BESIII detector, we search for the decays chi(cJ) ->mu(+)mu(- )J/psi through the radiative decays psi(3686) -> gamma chi(cJ), where J = ... read more here.
Keywords: dalitz decays; decays chi; electromagnetic dalitz; rightarrow psi ... See more keywords