@article{e03d7ddc863d4f02a5b88fa749264ba0,
title = "Observation of the Bc+ Meson in Pb-Pb and pp Collisions at sNN =5.02 TeV and Measurement of its Nuclear Modification Factor",
abstract = "The Bc+ meson is observed for the first time in heavy ion collisions. Data from the CMS detector are used to study the production of the Bc+ meson in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a center-of-mass energy per nucleon pair of sNN=5.02 TeV, via the Bc+→(J/ψ→μ+μ-)μ+νμ decay. The Bc+ nuclear modification factor, derived from the Pb-Pb-to-pp ratio of production cross sections, is measured in two bins of the trimuon transverse momentum and of the Pb-Pb collision centrality. The Bc+ meson is shown to be less suppressed than quarkonia and most of the open heavy-flavor mesons, suggesting that effects of the hot and dense nuclear matter created in heavy ion collisions contribute to its production. This measurement sets forth a promising new probe of the interplay of suppression and enhancement mechanisms in the production of heavy-flavor mesons in the quark-gluon plasma.",
author = "{CMS Collaboration} and A. Tumasyan and W. Adam and Andrejkovic, {J. W.} and T. Bergauer and S. Chatterjee and M. Dragicevic and {Del Valle}, {A. Escalante} and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and L. Lechner and D. Liko and I. Mikulec and P. Paulitsch and Pitters, {F. M.} and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and S. Templ and W. Waltenberger and Wulz, {C. E.} and V. Chekhovsky and A. Litomin and V. Makarenko and Darwish, {M. R.} and {De Wolf}, {E. A.} and T. Janssen and T. Kello and A. Lelek and Sfar, {H. Rejeb} and {Van Mechelen}, P. and {Van Putte}, S. and {Van Remortel}, N. and F. Blekman and Bols, {E. S.} and J. D{\textquoteright}Hondt and M. Delcourt and Faham, {H. El} and S. Lowette and S. Moortgat and A. Morton and D. M{\"u}ller and Sahasransu, {A. R.} and S. Tavernier and {Van Doninck}, W. and {Van Mulders}, P. and D. Beghin and B. Bilin and B. Clerbaux and A. Cakir",
note = "Publisher Copyright: {\textcopyright} 2022 CERN.",
year = "2022",
month = jun,
day = "24",
doi = "10.1103/PhysRevLett.128.252301",
language = "English",
volume = "128",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "25",
}