Abstract
The annihilation process pp¯→pD0Λ¯c(2286) is studied taking into account t-channel D0, D∗0 meson exchange and the resonance contribution of Λc(2286) and Λc(2940) baryons. We assume that the Λc(2940) baryon is a pD∗0 molecular state with spin-parity 12+ and 12-. Our results show that near the threshold of pp¯→Λc(2286)Λ¯c(2286) the contribution from the intermediate state Λc(2940) is also sizeable and can be observed at the P¯ANDA experiment. Another conclusion is that the spin-parity assignment 12- for Λc(2940) gives enhancement for the cross section in comparison with a choice 12+.
| Original language | English |
|---|---|
| Article number | 094001 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 90 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 3 Nov 2014 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Dong, Y., Faessler, A., Gutsche, T., & Lyubovitskij, V. E. (2014). Role of the hadron molecule Λc (2940) in the p p ¯ →pD0 Λ ¯ c (2286) annihilation reaction. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(9), [094001]. https://doi.org/10.1103/PhysRevD.90.094001