Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV; Journal of High Energy Physics; Vol. 2022, iss. 1
| Источник: | Journal of High Energy Physics Vol. 2022, iss. 1.— 2022.— [131, 26 p.] |
|---|---|
| Корпоративные авторы: | , |
| Другие авторы: | , , , , , |
| Примечания: | 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. |
| Язык: | английский |
| Опубликовано: |
2022
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| Предметы: | |
| Online-ссылка: | http://earchive.tpu.ru/handle/11683/80998 https://doi.org/10.1007/JHEP01(2022)131 |
| Формат: | MixedMaterials Электронный ресурс Статья |
| Запись в KOHA: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668734 |
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| 200 | 1 | |a Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV |f R. Aaij, A. S. Abdelmotteleb, C. A. Beteta [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 56 tit.] | ||
| 330 | |a 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. | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2022, iss. 1 |v [131, 26 p.] |d 2022 | ||
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