Transverse momentum spectra of inclusive b jets in pPb collisions at √sNN=5.02 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
Dergi ISSN 0370-2693 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 03-2016
Cilt / Sayı / Sayfa 754 / 1 / 59–80 DOI 10.1016/j.physletb.2016.01.010
Makale Linki https://www.sciencedirect.com/science/article/am/pii/S0370269316000149?via%3Dihub
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
We present a measurement of b jet transverse momentum (p T) spectra in proton-lead (pPb) collisions using a dataset corresponding to about 35 nb− 1 collected with the CMS detector at the LHC. Jets from b quark fragmentation are found by exploiting the long lifetime of hadrons containing ab quark through tagging methods using distributions of the secondary vertex mass and displacement. Extracted cross sections for b jets are scaled by the effective number of nucleon–nucleon collisions and are compared to a reference obtained from pythia simulations of pp collisions. The pythia-based estimate of the nuclear modification factor is found to be 1.22±0.15 (stat+ syst pPb)±0.27 (syst PYTHIA) averaged over all jets with p T between 55 and 400 GeV/c and with| η lab|< 2. We also compare this result to predictions from models using perturbative calculations in quantum chromodynamics.
Anahtar Kelimeler
b-tagging | CMS | Heavy ions | Physics
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Scopus 41
Google Scholar 47
Transverse momentum spectra of inclusive b jets in pPb collisions at √sNN=5.02 TeV

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