Observation of Medium-Induced Modifications of Jet Fragmentation in Pb-Pb Collisions at sNN =5.02 TeV Using Isolated Photon-Tagged Jets
 
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Physical Review Letters
Dergi ISSN 0031-9007 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 12-2018
Cilt / Sayı / Sayfa 121 / 24 / – DOI 10.1103/PhysRevLett.121.242301
Makale Linki http://link.aps.org/pdf/10.1103/PhysRevLett.121.242301
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
Measurements of fragmentation functions for jets associated with an isolated photon are presented for the first time in and Pb-Pb collisions. The analysis uses data collected with the CMS detector at the CERN LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Fragmentation functions are obtained for jets with in events containing an isolated photon with , using charged tracks with transverse momentum in a cone around the jet axis. The association with an isolated photon constrains the initial and azimuthal angle of the parton whose shower produced the jet. For central Pb-Pb collisions, modifications of the jet fragmentation functions are observed when compared to those measured in collisions, while no significant differences are found in the 50% most peripheral collisions. Jets in central Pb-Pb events show an excess (depletion) of low (high) particles …
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