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Measurement of jet fragmentation in 5.02 TeV proton-lead and proton-proton collisions with the ATLAS detector
Univ Mohamed Premier, Fac Sci, Oujda, Morocco.;LPTPM, Oujda, Morocco..
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0001-6945-1916
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0003-3867-0336
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0002-8015-7512
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Rekke forfattare: 28472018 (engelsk)Inngår i: Nuclear Physics A, ISSN 0375-9474, E-ISSN 1873-1554, Vol. 978, s. 65-106Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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 Pb data and 26 pb(-1) of pp data, both at root(TN)-T-s= 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 vertical bar y*vertical bar <1.6 and with transverse momentum 45 < p(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.

sted, utgiver, år, opplag, sider
ELSEVIER SCIENCE BV , 2018. Vol. 978, s. 65-106
Emneord [en]
Relativistic heavy-ion collisions, Jets, Fragmentation into hadrons
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Identifikatorer
URN: urn:nbn:se:kth:diva-238147DOI: 10.1016/j.nuclphysa.2018.07.006ISI: 000446948800005Scopus ID: 2-s2.0-85050992302OAI: oai:DiVA.org:kth-238147DiVA, id: diva2:1259737
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QC 20181030

Tilgjengelig fra: 2018-10-30 Laget: 2018-10-30 Sist oppdatert: 2018-10-30bibliografisk kontrollert

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Kastanas, Konstatinos A.Lund-Jensen, BengtOhm, ChristianSidebo, P. EdvinStrandberg, Jonas

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