Studies of dijet and photon-jet properties in pp, pPb, and PbPb collisions with CMS
作者： Richard Alexander Barbieri
DOI: 10.1016/J.NUCLPHYSA.2014.08.044
关键词: Physics 、 Parton 、 Quantum chromodynamics 、 Nuclear matter 、 Particle physics 、 Nucleon 、 Pseudorapidity 、 Perturbative QCD 、 Nuclear physics 、 Jet (particle physics) 、 Jet quenching
摘要: Abstract Studies of dijet and photon-jet properties in pPb collisions are great importance for establishing a QCD baseline hadronic interactions with cold nuclear matter. Dijet production has been measured at nucleon–nucleon center-of-mass energy 5.02 TeV. The transverse momentum balance azimuthal angle correlations studied both channels, leading to the observation that there is no significant modification, which allows these systems be used as tools probe modifications parton distribution functions (PDFs). In system, pseudorapidity distributions function forward calorimeters ( E T HF ). mean value found change monotonically increasing , indicating correlation between emitted large longitudinal motion frame. system compared next-to-leading-order perturbative predictions obtained from nucleon PDFs, data more closely match latter. addition studies initial state, measurements related quenching PbPb updated have precise pp reference based on 2013 LHC run 2.76
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