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 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Role of the hadron molecule Λc (2940) in the p p ¯ →pD0 Λ ¯ c (2286) annihilation reaction. / Dong, Yubing; Faessler, Amand; Gutsche, Thomas; Lyubovitskij, Valery E.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 90, No. 9, 094001, 03.11.2014.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Role of the hadron molecule Λc (2940) in the p p ¯ →pD0 Λ ¯ c (2286) annihilation reaction
AU - Dong, Yubing
AU - Faessler, Amand
AU - Gutsche, Thomas
AU - Lyubovitskij, Valery E.
PY - 2014/11/3
Y1 - 2014/11/3
N2 - 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+.
AB - 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+.
UR - http://www.scopus.com/inward/record.url?scp=84911869014&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84911869014&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.90.094001
DO - 10.1103/PhysRevD.90.094001
M3 - Article
VL - 90
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 9
M1 - 094001
ER -