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/ψπ+π-→μ+μ-π+π-. 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
DOI Link
Publication Date
2022-01-21
Publication Title
Physical Review Letters
Volume
128
Issue
3
ISSN
0031-9007
Deposit Date
2026-07-13
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
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Recommended Citation
CMS Collaboration., Sirunyan, A., 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., Zarucki, M., Drugakov, V., Mossolov, V., Suarez Gonzalez, J., Darwish, M., De Wolf, E., Di Croce, D., & Janssen, X. (2022) 'Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at sNN =5.02 TeV', Physical Review Letters, 128(3). Available at: 10.1103/PhysRevLett.128.032001