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What can we learn from the decay of NX(1625) in the molecule picture?

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Abstract

Considering two assumptions on the molecular state, i.e. the S-wave Λ̄–K- and S-wave Σ̄0–K- molecular states, we study the possible decays of N̄X(1625) that include N̄X(1625)→K-Λ̄,π0p̄,ηp̄,π-n̄. Our results indicate that (1) if N̄X(1625) is the Λ̄–K- molecular state, K-Λ̄ is the main decay mode of N̄X(1625), and the branching ratios of the rest decay modes are tiny; (2) if N̄X(1625) is the Σ̄0–K- molecular state, the branching ratio of N̄X(1625)→K-Λ̄ is one or two orders smaller than that of N̄X(1625)→π0p̄,ηp̄,π-n̄. Thus the search for N̄X(1625)→π0p̄,ηp̄,π-n̄ will be helpful to shed light on the nature of N̄X(1625).

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Authors and Affiliations

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

    Xiang Liu & Bo Zhang

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  1. Xiang Liu
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  2. Bo Zhang
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Correspondence to Xiang Liu.

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PACS

13.30.Eg, 13.75.Jz

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Liu, X., Zhang, B. What can we learn from the decay of NX(1625) in the molecule picture?. Eur. Phys. J. C 54, 253–258 (2008). https://doi.org/10.1140/epjc/s10052-008-0527-4

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

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