Measurement of the prompt J psi and psi 2S polarizations in ppcollisions at root s 7 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q4) | ||
| Dergi ISSN | 0370-2693 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2013 |
| Cilt / Sayı / Sayfa | 727 / 4 / 381–402 | DOI | 10.1016/j.physletb.2013.10.055 |
| UAK Araştırma Alanları |
Yüksek Enerji ve Parçacık Fiziği
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| Özet |
| The polarizations of prompt J/ψ and ψ (2 S) mesons are measured in proton–proton collisions at s= 7 TeV, using a dimuon data sample collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.9 fb− 1. The prompt J/ψ and ψ (2 S) polarization parameters λ ϑ, λ φ, and λ ϑ φ, as well as the frame-invariant quantity λ˜, are measured from the dimuon decay angular distributions in three different polarization frames. The J/ψ results are obtained in the transverse momentum range 14< p T< 70 GeV, in the rapidity intervals| y|< 0.6 and 0.6<| y|< 1.2. The corresponding ψ (2 S) results cover 14< p T< 50 GeV and include a third rapidity bin, 1.2<| y|< 1.5. No evidence of large polarizations is seen in these kinematic regions, which extend much beyond those previously explored. |
| Anahtar Kelimeler |
| CMS | Physics | Quarkonium polarization | Quarkonium production |
Science Direct
Measurement of the prompt J psi and psi 2S polarizations in ppcollisions at root s 7 TeV
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Scopus | 134 |
| Google Scholar | 199 |