Observation of Sequential upsilon Suppression in PbPb Collisions
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physical Review Letters (Q1)
Dergi ISSN 0031-9007 Dergi Bilgileri (2012)
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 01-2012
Kabul Tarihi – Yayınlanma Tarihi 26-11-2012
Cilt / Sayı / Sayfa 109 / 22 / – DOI 10.1103/PhysRevLett.109.222301
Makale Linki http://link.aps.org/pdf/10.1103/PhysRevLett.109.222301
UAK Araştırma Alanları
Yüksek Enerji ve Parçacık Fiziği
Özet
The suppression of the individual states in PbPb collisions with respect to their yields in data has been measured. The PbPb and data sets used in the analysis correspond to integrated luminosities of and , respectively, collected in 2011 by the CMS experiment at the LHC, at a center-of-mass energy per nucleon pair of 2.76 TeV. The yields are measured from the dimuon invariant mass spectra. The suppression of the yields in PbPb relative to the yields in , scaled by the number of nucleon-nucleon collisions, , is measured as a function of the collision centrality. Integrated over centrality, the values are , , and lower than 0.10 (at 95% confidence level), for the , , and states, respectively. The results demonstrate the sequential suppression of the states in PbPb collisions at LHC energies.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 223
Scopus 247
Google Scholar 637
Observation of Sequential upsilon Suppression in PbPb Collisions