Y(4626) in a chiral constituent quark model
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DOI: 10.1103/physrevd.101.054010
Abstract: Recently, Belle Collaboration reported a new exotic state $Y(4620)$ with mass at 4625.9 MeV in the positronium annihilation process. Inspired by experiment, we study the tetraquark system $c\bar{s}s\bar{c}$ with quantum numbers $J^{P}=1^{-}$ in the framework… read more here.
Keywords: chiral constituent; constituent quark; quark model;
Kaon quark distribution functions in the chiral constituent quark model
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.074015
Abstract: We investigate the valence $u$ and $\bar{s}$ quark distribution functions of the $K^+$ meson, $v^{K(u)}(x,Q^2)$ and $v^{K(\bar{s})}(x,Q^2)$, in the framework of the chiral constituent quark model. We judiciously choose the bare distributions at the initial… read more here.
Keywords: chiral constituent; quark; quark distribution; distribution functions ... See more keywords
Pion constituent quark couplings strong form factors: A dynamical approach
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.014001
Abstract: Form factors for pions interactions with constituent quarks are investigated as the leading effective couplings obtained from a one loop background field method applied to a global color model. Two pion field definitions are considered… read more here.
Keywords: pion constituent; form; constituent quark; form factors ... See more keywords
Selected strong decays of pentaquark State $$P_c(4312)$$ in a chiral constituent quark model
Sign Up to like & getrecommendations! Published in 2020 at "European Physical Journal C"
DOI: 10.1140/epjc/s10052-020-7890-1
Abstract: The newly confirmed pentaquark state $P_c(4312)$ has been treated as a weakly bound $(\Sigma _c\bar{D})$ state by a well-established chiral constituent quark model and by a dynamical calculation on quark degrees of freedom where the… read more here.
Keywords: constituent quark; chiral constituent; state 4312; pentaquark state ... See more keywords