First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC

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dc.contributor.authorAcharya, S
dc.contributor.authorAdamová, D
dc.contributor.authorAggarwal, M M
dc.contributor.authorAglieri Rinella, G
dc.contributor.authorAgnello, M
dc.contributor.authorAgrawal, N
dc.contributor.authorAhammed, Z
dc.contributor.authorAhmad, N
dc.contributor.authorAhn, S U
dc.contributor.authorAiola, S
dc.contributor.authorAkindinov, A
dc.contributor.authorAlam, S N
dc.contributor.authorAlbuquerque, D S D
dc.contributor.authorAleksandrov, D
dc.contributor.authorAlessandro, B
dc.contributor.authorAlexandre, D
dc.contributor.authorAlfaro Molina, R
dc.contributor.authorAlici, A
dc.contributor.authorAlkin, A
dc.contributor.authorAlme, J
dc.contributor.authorAlt, T
dc.contributor.authorAltsybeev, I
dc.contributor.authorAlves Garcia Prado, C
dc.contributor.authorAn, M
dc.contributor.authorAndrei, C
dc.contributor.authorAndrews, H A
dc.contributor.authorAndronic, A
dc.contributor.authorAnguelov, V
dc.contributor.authorAnson, C
dc.contributor.authorAntičić, T
dc.contributor.authorAntinori, F
dc.contributor.authorAntonioli, P
dc.date.accessioned2021-10-08T07:11:53Z
dc.date.available2021-10-08T07:11:53Z
dc.date.issued2018
dc.description.abstractThis letter presents the first measurement of jet mass in Pb–Pb and p–Pb collisions at √sNN = 2.76 TeV and √sNN = 5.02 TeV, respectively. Both the jet energy and the jet mass are expected to be sensitive to jet quenching in the hot Quantum Chromodynamics (QCD) matter created in nuclear collisions at collider energies. Jets are reconstructed from charged particles using the anti-kT jet algorithm and resolution parameter R = 0.4. The jets are measured in the pseudorapidity range |ηjet| < 0.5 and in three intervals of transverse momentum between 60 GeV/c and 120 GeV/c. The measurement of the jet mass in central Pb–Pb collisions is compared to the jet mass as measured in p–Pb reference collisions, to vacuum event generators, and to models including jet quenching. It is observed that the jet mass in central Pb–Pb collisions is consistent within uncertainties with p–Pb reference measurements. Furthermore, the measured jet mass in Pb–Pb collisions is not reproduced by the quenching models considered in this letter and is found to be consistent with PYTHIA expectations within systematic uncertainties
dc.identifier.apacitationAcharya, S., Adamová, D., Aggarwal, M. M., Aglieri Rinella, G., Agnello, M., Agrawal, N., ... Antonioli, P. (2018). First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC. <i>Physics Letters, B</i>, 776(C), 249 - 264. http://hdl.handle.net/11427/34702en_ZA
dc.identifier.chicagocitationAcharya, S, D Adamová, M M Aggarwal, G Aglieri Rinella, M Agnello, N Agrawal, Z Ahammed, et al "First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC." <i>Physics Letters, B</i> 776, C. (2018): 249 - 264. http://hdl.handle.net/11427/34702en_ZA
dc.identifier.citationAcharya, S., Adamová, D., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z. & Ahmad, N. et al. 2018. First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC. <i>Physics Letters, B.</i> 776(C):249 - 264. http://hdl.handle.net/11427/34702en_ZA
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.ris TY - Journal Article AU - Acharya, S AU - Adamová, D AU - Aggarwal, M M AU - Aglieri Rinella, G AU - Agnello, M AU - Agrawal, N AU - Ahammed, Z AU - Ahmad, N AU - Ahn, S U AU - Aiola, S AU - Akindinov, A AU - Alam, S N AU - Albuquerque, D S D AU - Aleksandrov, D AU - Alessandro, B AU - Alexandre, D AU - Alfaro Molina, R AU - Alici, A AU - Alkin, A AU - Alme, J AU - Alt, T AU - Altsybeev, I AU - Alves Garcia Prado, C AU - An, M AU - Andrei, C AU - Andrews, H A AU - Andronic, A AU - Anguelov, V AU - Anson, C AU - Antičić, T AU - Antinori, F AU - Antonioli, P AB - This letter presents the first measurement of jet mass in Pb–Pb and p–Pb collisions at √sNN = 2.76 TeV and √sNN = 5.02 TeV, respectively. Both the jet energy and the jet mass are expected to be sensitive to jet quenching in the hot Quantum Chromodynamics (QCD) matter created in nuclear collisions at collider energies. Jets are reconstructed from charged particles using the anti-kT jet algorithm and resolution parameter R = 0.4. The jets are measured in the pseudorapidity range |ηjet| < 0.5 and in three intervals of transverse momentum between 60 GeV/c and 120 GeV/c. The measurement of the jet mass in central Pb–Pb collisions is compared to the jet mass as measured in p–Pb reference collisions, to vacuum event generators, and to models including jet quenching. It is observed that the jet mass in central Pb–Pb collisions is consistent within uncertainties with p–Pb reference measurements. Furthermore, the measured jet mass in Pb–Pb collisions is not reproduced by the quenching models considered in this letter and is found to be consistent with PYTHIA expectations within systematic uncertainties DA - 2018 DB - OpenUCT DP - University of Cape Town IS - C J1 - Physics Letters, B LK - https://open.uct.ac.za PY - 2018 SM - 0370-2693 SM - 1873-2445 T1 - First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC TI - First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC UR - http://hdl.handle.net/11427/34702 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34702
dc.identifier.vancouvercitationAcharya S, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, et al. First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC. Physics Letters, B. 2018;776(C):249 - 264. http://hdl.handle.net/11427/34702.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Physics
dc.publisher.facultyFaculty of Science
dc.sourcePhysics Letters, B
dc.source.journalissueC
dc.source.journalvolume776
dc.source.pagination249 - 264
dc.source.urihttps://dx.doi.org/10.1016/j.physletb.2017.11.044
dc.subject.othertransverse momentum
dc.subject.otherCERN LHC Coll
dc.subject.otherjet: energy
dc.subject.otherjet: quenching
dc.subject.othernucleus
dc.subject.otherjet: mass
dc.subject.otherresolution
dc.subject.otherrapidity
dc.subject.otherbackground: fluctuation
dc.titleFirst measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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