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dc.contributor.authorAcharya, Shreyasi
dc.contributor.authorAcosta, Fernando T.
dc.contributor.authorAdamová, Dagmar
dc.contributor.authorAdler, Clemens
dc.contributor.authorAdolfsson, Jonatan
dc.contributor.authorAggarwal, Madan M.
dc.contributor.authorAglieri Rinella, Gianluca
dc.contributor.authorAgnello, Michelangelo
dc.contributor.authorAgrawal, Nikita
dc.contributor.authorAhammed, Zubayer
dc.contributor.authorAlme, Johan
dc.contributor.authorAltenkaemper, Lucas
dc.contributor.authorDjuvsland, Øystein
dc.contributor.authorErsdal, Magnus Rentsch
dc.contributor.authorFionda, Fiorella Maria Celeste
dc.contributor.authorNystrand, Joakim
dc.contributor.authorRehman, Attiq ur
dc.contributor.authorRøhrich, Dieter
dc.contributor.authorTambave, Ganesh Jagannath
dc.contributor.authorUllaland, Kjetil
dc.contributor.authorWagner, Boris
dc.contributor.authorZhou, Zhuo
dc.contributor.authorArsene, Ionut Cristian
dc.contributor.authorBätzing, Paul Christoph
dc.contributor.authorDordic, Olja
dc.contributor.authorLardeux, Antoine Xavier
dc.contributor.authorLindal, Svein
dc.contributor.authorMahmood, Sohail Musa
dc.contributor.authorMalik, Qasim Waheed
dc.contributor.authorRichter, Matthias
dc.contributor.authorRøed, Ketil
dc.contributor.authorSkaali, Toralf Bernhard
dc.contributor.authorTveter, Trine Spedstad
dc.contributor.authorWikne, Jon Christopher
dc.contributor.authorZhao, Chengxin
dc.contributor.authorHelstrup, Håvard
dc.contributor.authorHetland, Kristin Fanebust
dc.contributor.authorKileng, Bjarte
dc.contributor.authorNesbø, Simon Voigt
dc.contributor.authorStoretvedt, Maksim Melnik
dc.contributor.authorLangøy, Rune
dc.contributor.authorLien, Jørgen André
dc.contributor.authorAhn, Sang Un
dc.contributor.authorAiola, Salvatore
dc.contributor.authorAkindinov, Alexander
dc.contributor.authorAl-Turany, Mohammed
dc.contributor.authorAlam, Sk Noor
dc.contributor.authorDe Albuquerque, Danilo Silva
dc.contributor.authorAleksandrov, Dimitry
dc.contributor.authorAlessandro, Bruno
dc.contributor.authorALICE, Collaboration
dc.date.accessioned2019-05-23T12:20:55Z
dc.date.available2019-05-23T12:20:55Z
dc.date.issued2018-10
dc.PublishedAcharya S, Acosta FT, Adamová D, Adler C, Adolfsson J, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Alme J, Altenkaemper L, Djuvsland Ø, Ersdal MR, Fionda FMC, Nystrand J, Rehman Au, Røhrich D, Tambave GJ, Ullaland K, Wagner B, Zhou Z, Arsene IC, Bätzing P, Dordic O, Lardeux A, Lindal S, Mahmood SM, Malik QW, Richter M, Røed K, Skaali TB, Tveter TS, Wikne JC, Zhao C, Helstrup H, Hetland KF, Kileng B, Nesbø SV, Storetvedt M, Langøy R, Lien JA, Ahn SU, Aiola S, Akindinov A, Al-Turany M, Alam SN, De Albuquerque DS, Aleksandrov D, Alessandro B, ALICE C. Medium modification of the shape of small-radius jets in central Pb-Pb collisions at √sN-N-=2.76 TeV. Journal of High Energy Physics (JHEP). 2018;2018:139eng
dc.identifier.issn1029-8479en_US
dc.identifier.urihttps://hdl.handle.net/1956/19711
dc.description.abstractWe present the measurement of a new set of jet shape observables for track-based jets in central Pb-Pb collisions at sNN−−−√=2.76 TeV. The set of jet shapes includes the first radial moment or angularity, g; the momentum dispersion, pTD; and the difference between the leading and sub-leading constituent track transverse momentum, LeSub. These observables provide complementary information on the jet fragmentation and can constrain different aspects of the theoretical description of jet-medium interactions. The jet shapes were measured for a small resolution parameter R = 0.2 and were fully corrected to particle level. The observed jet shape modifications indicate that in-medium fragmentation is harder and more collimated than vacuum fragmentation as obtained by PYTHIA calculations, which were validated with the measurements of the jet shapes in proton-proton collisions at s√=7 TeV. The comparison of the measured distributions to templates for quark and gluon-initiated jets indicates that in-medium fragmentation resembles that of quark jets in vacuum. We further argue that the observed modifications are not consistent with a totally coherent energy loss picture where the jet loses energy as a single colour charge, suggesting that the medium resolves the jet structure at the angular scales probed by our measurements (R = 0.2). Furthermore, we observe that small-R jets can help to isolate purely energy loss effects from other effects that contribute to the modifications of the jet shower in medium such as the correlated background or medium response.en_US
dc.language.isoengeng
dc.publisherSpringeren_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.titleMedium modification of the shape of small-radius jets in central Pb-Pb collisions at √sN-N-=2.76TeVen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2019-01-02T06:44:02Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright CERN, for the benefit of the ALICE Collaborationen_US
dc.identifier.doihttps://doi.org/10.1007/jhep10(2018)139
dc.identifier.cristin1647041
dc.source.journalJournal of High Energy Physics (JHEP)
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431


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