**54**: 253-258

https://doi.org/10.1140/epjc/s10052-008-0527-4

Regular Article - Theoretical Physics

## What can we learn from the decay of N_{X}(1625) in the molecule picture?

Department of Physics, Peking University, Beijing, 100871, P.R. China

^{*} e-mail: xiangliu@pku.edu.cn

Received:
23
November
2007

Revised:
12
December
2007

Published online:
31
January
2008

Considering two assumptions on the molecular state, i.e. the S-wave Λ̄–K^{-} and S-wave Σ̄^{0}–K^{-} molecular states, we study the possible decays of N̄_{X}(1625) that include N̄_{X}(1625)→K^{-}Λ̄,π^{0}p̄,ηp̄,π^{-}n̄. Our results indicate that (1) if N̄_{X}(1625) is the Λ̄–K^{-} molecular state, K^{-}Λ̄ is the main decay mode of N̄_{X}(1625), and the branching ratios of the rest decay modes are tiny; (2) if N̄_{X}(1625) is the Σ̄^{0}–K^{-} molecular state, the branching ratio of N̄_{X}(1625)→K^{-}Λ̄ is one or two orders smaller than that of N̄_{X}(1625)→π^{0}p̄,ηp̄,π^{-}n̄. Thus the search for N̄_{X}(1625)→π^{0}p̄,ηp̄,π^{-}n̄ will be helpful to shed light on the nature of N̄_{X}(1625).

*© Springer-Verlag , 2008*