Xin-Xin Ma

collaborators

2 papers

hep-ph2019

Polarization difference between hyperons and anti-hyperons induced by external magnetic field

Hai-Bo Li, Xin-Xin Ma

We investigate the quantum correlated $Λ Λ ˉ$ production in the reaction $e^{+} e^{-} \to J / ψ \to Λ Λ ˉ$ . Since the $Λ$ or $Λ ˉ$ has a nonzero magnetic moment, its spin will und…

hep-ph2019

Study of the electromagnetic Dalitz decays $ψ (Υ) \to η_{c} (η_{b}) l^{+} l^{-}$

Li-Min Gu, Hai-Bo Li, Xin-Xin Ma +1

We study the electromagnetic Dalitz (EM) decays, $ψ \to η_{c} l^{+} l^{-}$ and $Υ \to η_{b} l^{+} l^{-}$ ( $l = e$ or $μ$ ), in which the lepton pair comes from the virtual photon emit…

Polarization difference between hyperons and anti-hyperons induced by external magnetic field

Study of the electromagnetic Dalitz decays ψ(Υ)→ηc​(ηb​)l+l−

Study of the electromagnetic Dalitz decays $ψ (Υ) \to η_{c} (η_{b}) l^{+} l^{-}$