Measurement of jet fragmentation in 5.02 TeV proton--lead and proton--proton 
collisions with the ATLAS detector

ATLAS Collaboration,

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Measurement of jet fragmentation in 5.02 TeV proton--lead and proton--proton collisions with the ATLAS detector

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ATLAS Collaboration,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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引用

ATLAS Collaboration, (2018). Measurement of jet fragmentation in 5.02 TeV proton--lead and proton--proton collisions with the ATLAS detector. Nuclear Physics A, (978), 65. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2017-116.

引用: https://hdl.handle.net/21.11116/0000-0003-F8CD-F

要旨

A measurement of the fragmentation functions of jets into charged particles in $p$+Pb collisions and $pp$ collisions is presented. The analysis utilizes 28 nb$^{-1}$ of $p$+Pbdata and 26 pb$^{-1}$ of $pp$ data, both at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV, collected in 2013 and 2015, respectively, with the ATLAS detector at the LHC. The measurement is reported in the centre-of-mass frame of the nucleon--nucleon system for jets in the rapidity range $|y^{*}|<$1.6 and with transverse momentum 45 $ < p_{\mathrm{T}} <$ 260 GeV. Results are presented both as a function of the charged-particle transverse momentum and as a function of the longitudinal momentum fraction of the particle with respect to the jet. The $pp$ fragmentation functions are compared with results from Monte Carlo event generators and two theoretical models. The ratios of the $p$+Pb to $pp$ fragmentation functions are found to be consistent with unity.