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.

Modification of χc1 (3872) and ψ (2S) Production in pPb Collisions at sNN =8.16 TeV / Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 132:24(2024), pp. 242301-242301. [10.1103/PhysRevLett.132.242301]

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

Bizzeti A.;
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.
2024
132
24
242301
242301
Modification of χc1 (3872) and ψ (2S) Production in pPb Collisions at sNN =8.16 TeV / Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 132:24(2024), pp. 242301-242301. [10.1103/PhysRevLett.132.242301]
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinen, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoulou, C.; Aidala, C....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1350549
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