Investigation into the event-activity dependence of γ(nS) relative production in proton-proton collisions at √s=7 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Journal of High Energy Physics (Q1) | ||
| Dergi ISSN | 1029-8479 Dergi Bilgileri (2020) | ||
| Makale Dili | İngilizce | Basım Tarihi | 11-2020 |
| Cilt / Sayı / Sayfa | 2020 / 11 / 1–39 | DOI | 10.1007/JHEP11(2020)001 |
| Makale Linki | https://hdl.handle.net/11384/149543 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The ratios of the production cross sections between the excited ϒ (2S) and ϒ (3S) mesons and the ϒ (1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in the event. The data are from proton-proton collisions at= 7 TeV, corresponding to an integrated luminosity of 4.8 fb− 1, collected with the CMS detector at the LHC. Evidence of a decrease in these ratios as a function of the particle multiplicity is observed, more pronounced at low transverse momentum\({p} _ {\mathrm {T}}^{\upmu\upmu}\). For ϒ (nS) mesons with\({p} _ {\mathrm {T}}^{\upmu\upmu}\)> 7 GeV, where most of the data were collected, the correlation with multiplicity is studied as a function of the underlying event transverse sphericity and the number of particles in a cone around the ϒ (nS) direction. The ratios are found to be multiplicity independent for jet-like events. The mean\({p … |
| Anahtar Kelimeler |
| B physics | Hadron-Hadron scattering (experiments) | Particle correlations and fluctuations | Quarkonium |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 31 |
| Scopus | 32 |
| Google Scholar | 71 |