Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV
| Parent link: | Journal of High Energy Physics Vol. 2022, iss. 1.— 2022.— [131, 26 p.] |
|---|---|
| Corporate Authors: | , |
| Other Authors: | , , , , , |
| Summary: | Title screen The production cross-section of the χc1(3872) state relative to the ψ(2S) meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of √s = 8 and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π− final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross-sections are measured as a function of transverse momentum, pT, and rapidity, y, of the χc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20 GeV/c and 2.0 < y < 4.5. The prompt ratio is found to increase with pT, independently of y. For the prompt component, the double ratio of the χc1(3872) and ψ(2S) production cross-sections between 13 and 8 TeV is observed to be consistent with unity, independent of pT and centre-of-mass energy. |
| Language: | English |
| Published: |
2022
|
| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/80998 https://doi.org/10.1007/JHEP01(2022)131 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668734 |