Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV

Simple item page
dc.contributor.authorAdam, J
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, S
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.authorAltinpinar, S
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.date.accessioned2021-10-08T07:11:38Z
dc.date.available2021-10-08T07:11:38Z
dc.date.issued2017
dc.description.abstractThe measurement of two-particle angular correlations is a powerful tool to study jet quenching in a p T region inaccessible by direct jet identification. Here, the differences in the pseudorapidity (Δη) and azimuthal (Δφ) measurements are used to extract the shape of the near-side peak formed by particles associated with a higher pT trigger particle (1 < p T,trig < 8 GeV/c). A combined fit of the near-side peak and long-range correlations is applied to the data allowing the extraction of the centrality evolution of the peak shape in Pb-Pb collisions at √ sNN=2.76 TeV. A significant broadening of the peak in the Δη direction at low pT is found from peripheral to central collisions, which vanishes above 4 GeV/c, while in the Δφ direction the peak is almost independent of centrality. For the 10% most central collisions and 1 < p T,assoc < 2 GeV/c, 1 < p T,trig < 3 GeV/c a novel feature is observed: a depletion develops around the center of the peak. Our results are compared to pp collisions at the same center of mass energy and ampt model simulations. The comparison to the investigated models suggests that the broadening and the development of themore » depletion is connected to the strength of radial and longitudinal flow.« less
dc.identifier.apacitationAdam, J., Adamová, D., , Aglieri Rinella, G., Agnello, M., Agrawal, N., ... Antinori, F. (2017). Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV. <i>Physical Review Letters</i>, 119(10), 174 - 177. http://hdl.handle.net/11427/34657en_ZA
dc.identifier.chicagocitationAdam, J, D Adamová, , G Aglieri Rinella, M Agnello, N Agrawal, Z Ahammed, et al "Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV." <i>Physical Review Letters</i> 119, 10. (2017): 174 - 177. http://hdl.handle.net/11427/34657en_ZA
dc.identifier.citationAdam, J., Adamová, D., , Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z. & Ahmad, S. et al. 2017. Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV. <i>Physical Review Letters.</i> 119(10):174 - 177. http://hdl.handle.net/11427/34657en_ZA
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issn1092-0145
dc.identifier.ris TY - Journal Article AU - Adam, J AU - Adamová, D AU - Aggarwal, M M AU - Aglieri Rinella, G AU - Agnello, M AU - Agrawal, N AU - Ahammed, Z AU - Ahmad, S 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 - Altinpinar, S 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 AB - The measurement of two-particle angular correlations is a powerful tool to study jet quenching in a p T region inaccessible by direct jet identification. Here, the differences in the pseudorapidity (Δη) and azimuthal (Δφ) measurements are used to extract the shape of the near-side peak formed by particles associated with a higher pT trigger particle (1 < p T,trig < 8 GeV/c). A combined fit of the near-side peak and long-range correlations is applied to the data allowing the extraction of the centrality evolution of the peak shape in Pb-Pb collisions at √ sNN=2.76 TeV. A significant broadening of the peak in the Δη direction at low pT is found from peripheral to central collisions, which vanishes above 4 GeV/c, while in the Δφ direction the peak is almost independent of centrality. For the 10% most central collisions and 1 < p T,assoc < 2 GeV/c, 1 < p T,trig < 3 GeV/c a novel feature is observed: a depletion develops around the center of the peak. Our results are compared to pp collisions at the same center of mass energy and ampt model simulations. The comparison to the investigated models suggests that the broadening and the development of themore » depletion is connected to the strength of radial and longitudinal flow.« less DA - 2017 DB - OpenUCT DP - University of Cape Town IS - 10 J1 - Physical Review Letters LK - https://open.uct.ac.za PY - 2017 SM - 0031-9007 SM - 1079-7114 SM - 1092-0145 T1 - Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV TI - Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV UR - http://hdl.handle.net/11427/34657 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34657
dc.identifier.vancouvercitationAdam J, Adamová D, , Aglieri Rinella G, Agnello M, Agrawal N, et al. Anomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV. Physical Review Letters. 2017;119(10):174 - 177. http://hdl.handle.net/11427/34657.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Physics
dc.publisher.facultyFaculty of Science
dc.sourcePhysical Review Letters
dc.source.journalissue10
dc.source.journalvolume119
dc.source.pagination174 - 177
dc.source.urihttps://dx.doi.org/10.1103/PhysRevLett.119.102301
dc.subject.otherSubatomär fysik
dc.subject.otherBinary alloys
dc.subject.otherHigh energy physics
dc.subject.otherLead
dc.subject.otherLead alloys
dc.subject.otherTellurium compounds
dc.subject.otherAngular correlations
dc.subject.otherCenter-of-mass energies
dc.subject.otherJet quenching
dc.subject.otherLong range correlations
dc.subject.otherModel simulation
dc.subject.otherPb-Pb collisions
dc.subject.otherPseudorapidities
dc.subject.otherTrigger particles
dc.subject.otherVanadium alloys
dc.titleAnomalous evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at √sNN = 2.76 TeV
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
AdamJ_Anomalous_evolu_2017.pdf
Size:
693.9 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Journal Articles