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Evidence for X(3872) in Pb-Pb collisions and studies of its prompt production at sNN =5.02 TeV

Abstract: The first evidence for X(3872) production in relativistic heavy ion collisions is reported. The X(3872) production is studied in lead-lead (Pb-Pb) collisions at a center-of-mass energy of ?sNN=5.02??TeV per nucleon pair, using the decay chain X(3872)?J/??+????+???+??. The data were recorded with the CMS detector in 2018 and correspond to an integrated luminosity of 1.7??nb?1. The measurement is performed in the rapidity and transverse momentum ranges |y|<1.6 and 15

 Autoría: Sirunyan A.M., Tumasyan A., Adam W., Ambrogi F., Bergauer T., Dragicevic M., Erö J., Escalante Del Valle A., Flechl M., Frühwirth R., Jeitler M., Krammer N., Krätschmer I., Liko D., Madlener T., Mikulec I., Rad N., Schieck J., Schöfbeck R., Spanring M., Waltenberger W., Wulz C.E., Zarucki M., Drugakov V., Mossolov V., Suarez Gonzalez J., Darwish M.R., De Wolf E.A., Di Croce D., Janssen X., Kello T., Lelek A., Pieters M., Rejeb Sfa

 Fuente: Physical Review Letters, 2022, 128, 032001

 Editorial: American Physical Society

 Año de publicación: 2022

 Nº de páginas: 18

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.128.032001

 ISSN: 0031-9007,1079-7114

 Url de la publicación: https://doi.org/10.1103/PhysRevLett.128.032001