Ju-Jun Xie

Neutral hidden charm pentaquark states

We investigate the neutral hidden charm pentaquark states

P_c^0(4380)

{P}_{c}^{0}(4380)

and

and

P_c^0(4450)

{P}_{c}^{0}(4450)

in

in the

\pi^-p \to J/\psi n

{\ensuremath{\pi}}^{\ensuremath{-}}p\ensuremath{\rightarrow}J/\ensuremath{\psi}n

reaction

reaction within an effective Lagrangian approach. The background contributions for the process mainly come from

Role of the Lambda(+)(c) (2940) in the pi(-)p -> D(-)D(0)p reaction close to threshold

t

The Ξ* and Ωη Interaction Within a Chiral Unitary Approach*

-channel

The Role of a 1 (1260) in π− p → a 1 −(1260)p and π− p → π−ρ0 p Reactions Near Threshold*

\ensuremath{\pi}