Bibcode
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; Krätschmer, I.; Liko, D.; Matsushita, T.; Mikulec, I.; Rabady, D.; Rad, N.; Rohringer, H.; Schieck, J.; Strauss, J.; Waltenberger, W.; Wulz, C.-E.; Chekhovsky, V.; Mossolov, V.; Suarez Gonzalez, J.; Shumeiko, N.; Alderweireldt, S.; De Wolf, E. A.; Janssen, X.; Lauwers, J.; Van De Klundert, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Van Spilbeeck, A.; Abu Zeid, S.; Blekman, F.; D'Hondt, J.; De Bruyn, I.; De Clercq, J.; Deroover, K.; Lowette, S.; Moortgat, S.; Moreels, L.; Olbrechts, A.; Python, Q.; Skovpen, K.; Tavernier, S.; Van Doninck, W.; Van Mulders, P.; Van Parijs, I.; Brun, H.; Clerbaux, B.; De Lentdecker, G.; Delannoy, H.; Fasanella, G.; Favart, L.; Goldouzian, R.; Grebenyuk, A.; Karapostoli, G.; Lenzi, T.; Luetic, J.; Maerschalk, T.; Marinov, A.; Randle-conde, A.; Seva, T.; Vander Velde, C.; Vanlaer, P.; Vannerom, D.; Yonamine, R.; Zenoni, F.; Zhang, F.; Cimmino, A.; Cornelis, T.; Dobur, D.; Fagot, A.; Gul, M.; Khvastunov, I.; Poyraz, D.; Salva, S.; Schöfbeck, R.; Tytgat, M.; Van Driessche, W.; Verbeke, W.; Zaganidis, N.; Bakhshiansohi, H.; Bondu, O.; Brochet, S.; Bruno, G.; Caudron, A.; De Visscher, S.; Delaere, C.; Delcourt, M.; Francois, B. et al.
Referencia bibliográfica
Physical Review Letters, Volume 119, Issue 15, id.152301
Fecha de publicación:
10
2017
Revista
Número de citas
61
Número de citas referidas
52
Descripción
The differential production cross sections of B±
mesons are measured via the exclusive decay channels
B±→J /ψ
K±→μ+μ-K±
as a function of transverse momentum in p p and Pb-Pb collisions at a
center-of-mass energy √{sN N }=5.02 TeV per nucleon pair
with the CMS detector at the LHC. The p p (Pb-Pb ) data set used for
this analysis corresponds to an integrated luminosity of 28.0
pb-1 (351 μ b-1 ). The measurement is performed
in the B± meson transverse momentum range of 7 to 50
GeV /c , in the rapidity interval |y | <2.4 . In this kinematic
range, a strong suppression of the production cross section by about a
factor of 2 is observed in the Pb-Pb system in comparison to the
expectation from p p reference data. These results are found to be
roughly compatible with theoretical calculations incorporating beauty
quark diffusion and energy loss in a quark-gluon plasma.