Υ (nS) polarizations versus particle multiplicity in pp collisions at √s=7 TeV
Yazarlar (1)
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q1)
Dergi ISSN 0370-2693 Dergi Bilgileri (2016)
Makale Dili İngilizce Basım Tarihi 10-2016
Cilt / Sayı / Sayfa 761 / 1 / 31–52 DOI 10.1016/j.physletb.2016.07.065
Makale Linki https://www.sciencedirect.com/science/article/am/pii/S0370269316304063?via%3Dihub
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
The polarizations of the ϒ (1 S), ϒ (2 S), and ϒ (3 S) mesons are measured as a function of the charged particle multiplicity in proton–proton collisions at s= 7 TeV. The measurements are performed with a dimuon data sample collected in 2011 by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb− 1. The results are extracted from the dimuon decay angular distributions, in two ranges of ϒ (n S) transverse momentum (10–15 and 15–35 GeV), and in the rapidity interval| y|< 1.2. The results do not show significant changes from low-to high-multiplicity pp collisions, although large uncertainties preclude definite statements in the ϒ (2 S) and ϒ (3 S) cases.
Anahtar Kelimeler
CMS | Physics | QCD medium effects | Quarkonium polarization | Quarkonium production
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 8
Scopus 10
Google Scholar 44
Υ (nS) polarizations versus particle multiplicity in pp collisions at √s=7 TeV

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