The LHCb Collaboration measures production of the exotic hadron χc1(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state ψ(2S) suggests that the exotic χc1(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may modify χc1(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2024). Modification of χc1 (3872) and ψ (2S) Production in pPb Collisions at sNN =8.16 TeV. PHYSICAL REVIEW LETTERS, 132(24) [10.1103/PhysRevLett.132.242301].

Modification of χc1 (3872) and ψ (2S) Production in pPb Collisions at sNN =8.16 TeV

Anelli A;Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Kirsebom V. S.;Malentacca L.;Martinazzoli L.;Martinelli M.;Minotti A.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2024

Abstract

The LHCb Collaboration measures production of the exotic hadron χc1(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state ψ(2S) suggests that the exotic χc1(3872) experiences different dynamics in the nuclear medium than conventional hadrons, and comparison with data from proton-proton collisions indicates that the presence of the nucleus may modify χc1(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron.
Articolo in rivista - Articolo scientifico
Charmonium; Measurements of; Nuclear medium; Nuclear modification factors; Production rates; Proton proton collisions; Proton-nucleus collisions
English
2024
132
24
242301
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2024). Modification of χc1 (3872) and ψ (2S) Production in pPb Collisions at sNN =8.16 TeV. PHYSICAL REVIEW LETTERS, 132(24) [10.1103/PhysRevLett.132.242301].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/491659
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