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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

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Authorship: 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

Publisher: American Physical Society

Year of publication: 2022

No. of pages: 18

Publication type: Article

DOI: 10.1103/PhysRevLett.128.032001

ISSN: 0031-9007,1079-7114

Publication Url: https://doi.org/10.1103/PhysRevLett.128.032001

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