Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV

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dc.contributor.author The CMS collaboration
dc.contributor.author Sirunyan, A. M.
dc.contributor.author Tumasyan, A.
dc.contributor.author Eerola, P.
dc.contributor.author Kirschenmann, H.
dc.contributor.author Pekkanen, J.
dc.contributor.author Voutilainen, M.
dc.contributor.author Havukainen, J.
dc.contributor.author Heikkila, J. K.
dc.contributor.author Jarvinen, T.
dc.contributor.author Karimäki, Veikko
dc.contributor.author Kinnunen, R.
dc.contributor.author Lampen, T.
dc.contributor.author Lassila-Perini, K.
dc.contributor.author Laurila, S.
dc.contributor.author Lehti, S.
dc.contributor.author Linden, T.
dc.contributor.author Luukka, P.
dc.contributor.author Maenpaa, T.
dc.contributor.author Siikonen, H.
dc.contributor.author Tuominen, E.
dc.contributor.author Tuominiemi, J.
dc.contributor.author Tuuva, T.
dc.date.accessioned 2020-11-20T11:16:01Z
dc.date.available 2020-11-20T11:16:01Z
dc.date.issued 2020-09-03
dc.identifier.citation The CMS Collaboration , Sirunyan , A M , Tumasyan , A , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkila , J K , Jarvinen , T , Karimäki , V , Kinnunen , R , Lampen , T , Lassila-Perini , K , Laurila , S , Lehti , S , Linden , T , Luukka , P , Maenpaa , T , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2020 , ' Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV ' , Physical Review Letters , vol. 125 , no. 10 , 102001 . https://doi.org/10.1103/PhysRevLett.125.102001
dc.identifier.other PURE: 151051010
dc.identifier.other PURE UUID: c0e13097-552e-4224-8bad-5e562f07ff89
dc.identifier.other WOS: 000565459600006
dc.identifier.other ORCID: /0000-0002-7073-7767/work/83839307
dc.identifier.other ORCID: /0000-0002-5200-6477/work/83840784
dc.identifier.other ORCID: /0000-0001-7507-8636/work/83841309
dc.identifier.other ORCID: /0000-0003-2039-5874/work/83841606
dc.identifier.other ORCID: /0000-0001-7369-2536/work/83841825
dc.identifier.other ORCID: /0000-0003-2898-6900/work/83841841
dc.identifier.other ORCID: /0000-0002-0538-1469/work/83843252
dc.identifier.other Scopus: 85091470163
dc.identifier.uri http://hdl.handle.net/10138/321771
dc.description.abstract The first study of charm quark diffusion with respect to the jet axis in heavy ion collisions is presented. The measurement is performed using jets with p(T)(jet) > 60 GeV/c and D-0 mesons with p(T)(D) > 4 GeV/c in lead-lead (Pb-Pb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of root s(NN) = 5.02 TeV, recorded by the CMS detector at the LHC. The radial distribution of D-0 mesons with respect to the jet axis is sensitive to the production mechanisms of the meson, as well as to the energy loss and diffusion processes undergone by its parent parton inside the strongly interacting medium produced in Pb-Pb collisions. When compared to Monte Carlo event generators, the radial distribution in pp collisions is found to be well described by PYTHIA, while the slope of the distribution predicted by SHERPA is steeper than that of the data. In Pb-Pb collisions, compared to the pp results, the D-0 meson distribution for 4 <p(T)(D) <20 GeV/c hints at a larger distance on average with respect to the jet axis, reflecting a diffusion of charm quarks in the medium created in heavy ion collisions. At higher p(T)(D), the Pb-Pb and pp radial distributions are found to be similar. en
dc.format.extent 18
dc.language.iso eng
dc.relation.ispartof Physical Review Letters
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 114 Physical sciences
dc.title Studies of Charm Quark Diffusion inside Jets Using Pb-Pb and pp Collisions at root s(NN)=5.02 TeV en
dc.type Article
dc.contributor.organization Department of Physics
dc.contributor.organization Helsinki Institute of Physics
dc.contributor.organization Eija Tuominen / Principal Investigator
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1103/PhysRevLett.125.102001
dc.relation.issn 0031-9007
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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