Azimuthal Anisotropy of Charged Particles at High Transverse Momenta inPb Pb Collisions at root S NN 2 76 TeV
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 10-07-2012
Cilt / Sayı / Sayfa 109 / 2 / – DOI 10.1103/PhysRevLett.109.022301
Makale Linki http://link.aps.org/pdf/10.1103/PhysRevLett.109.022301
UAK Araştırma Alanları
Yüksek Enerji ve Parçacık Fiziği
Özet
The azimuthal anisotropy of charged particles in Pb-Pb collisions at root S-NN = 2.76 TeV is measured with the CMS detector at the LHC over an extended transverse momentum (p(T)) range up to approximately 60 GeV/c. The data cover both the low-p(T) region associated with hydrodynamic flow phenomena and the high-p(T) region where the anisotropies may reflect the path-length dependence of parton energy loss in the created medium. The anisotropy parameter (nu(2)) of the particles is extracted by correlating charged tracks with respect to the event-plane reconstructed by using the energy deposited in forward-angle calorimeters. For the six bins of collision centrality studied, spanning the range of 0-60% most-central events, the observed nu(2) values are found to first increase with p(T), reaching a maximum around p(T) = 3 GeV/c, and then to gradually decrease to almost zero, with the decline persisting up to at least p(T) = 40 GeV/c over the full centrality range measured.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 119
Scopus 183
Azimuthal Anisotropy of Charged Particles at High Transverse Momenta inPb Pb Collisions at root S NN 2 76 TeV