The LHCb Collaboration measures production of the exotic hadron chi_c1(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state Psi(2S) suggests that the exotic chi_c1(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 chi_c1(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron.
Modification of Chi_c1(3872) and Psi(2S) Production in pPb Collisions at sqrt{sNN}=8.16 TeV
Kleijne N.Membro del Collaboration Group
;Morello M. J.Membro del Collaboration Group
;Ribatti R.Membro del Collaboration Group
;
2024
Abstract
The LHCb Collaboration measures production of the exotic hadron chi_c1(3872) in proton-nucleus collisions for the first time. Comparison with the charmonium state Psi(2S) suggests that the exotic chi_c1(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 chi_c1(3872) production rates. This is the first measurement of the nuclear modification factor of an exotic hadron.File in questo prodotto:
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PhysRevLett.132.242301_reduced.pdf
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