Observation of the B+c meson in Pb-Pb and pp collisions at √sNN=5.02 TeV and measurement of its nuclear modification factor
The B-c(+) meson is observed for the first time in heavy ion collisions. Data from the CMS detector are used to study the production of the B-c(+) meson in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a center of-mass energy per nucleon pair of root s(NN) = 5.02 TeV, via the B-c(+) -> (...
| Published in: | Physical Review Letters Vol. 128, № 25. P. 252301-1-252301-19 |
|---|---|
| Other Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001000997 Перейти в каталог НБ ТГУ |
| LEADER | 02455nab a2200385 c 4500 | ||
|---|---|---|---|
| 001 | koha001000997 | ||
| 005 | 20231220125110.0 | ||
| 007 | cr | | ||
| 008 | 230426|2022 xxu s a eng d | ||
| 024 | 7 | |a 10.1103/PhysRevLett.128.252301 |2 doi | |
| 035 | |a koha001000997 | ||
| 039 | |z 33832 |b 100 | ||
| 040 | |a RU-ToGU |b rus |c RU-ToGU | ||
| 245 | 1 | 0 | |a Observation of the B+c meson in Pb-Pb and pp collisions at √sNN=5.02 TeV and measurement of its nuclear modification factor |c A. Tumasyan, W. Adam, J. W. Andrejkovic [et al.] |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 47 назв. | ||
| 520 | 3 | |a The B-c(+) meson is observed for the first time in heavy ion collisions. Data from the CMS detector are used to study the production of the B-c(+) meson in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a center of-mass energy per nucleon pair of root s(NN) = 5.02 TeV, via the B-c(+) -> (J/psi -> mu(+)mu(-))mu(+)nu(mu) decay. The B-c(+) 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 B-c(+) 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. | |
| 653 | |a мезоны | ||
| 653 | |a протон-протонные столкновения | ||
| 653 | |a ATLAS, детектор | ||
| 655 | 4 | |a статьи в журналах |9 884372 | |
| 700 | 1 | |a Tumasyan, Armen |9 510818 | |
| 700 | 1 | |a Adam, Wolfgang |9 510819 | |
| 700 | 1 | |a Andrejkovic, Janik Walter |9 882239 | |
| 700 | 1 | |a Borshch, Vladislav |9 510820 | |
| 700 | 1 | |a Ivanchenko, Vladimir |9 500157 | |
| 700 | 1 | |a Tcherniaev, Evgueni |9 500158 | |
| 773 | 0 | |t Physical Review Letters |d 2022 |g Vol. 128, № 25. P. 252301-1-252301-19 |x 0031-9007 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001000997 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=1000997 | ||
| 908 | |a статья | ||
| 942 | |2 udc | ||
| 999 | |c 1000997 |d 1000997 | ||