Measurement of jet fragmentation in Pb plus Pb and pp collisions at root S-NN=5.02 TeV with the ATLAS detector
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PhysRevC.98.024908.pdf
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Author
Aaboud, M.Aad, G.
Abbott, B.
Abdinov, O.
Abeloos, B.
Abhayasinghe, D. K.
Abidi, S. H.
AbouZeid, O. S.
Abraham, N. L.
Abramowicz, H.
Abreu, H.
Abulaiti, Y.
Acharya, B. S.
Adachi, S.
Adamczyk, L.
Adelman, J.
Adersberger, M.
Adiguzel, A.
Adye, T.
Affolder, A. A.
Afik, Y.
Agheorghiesei, C.
Aguilar-Saavedra, J. A.
Ahmadov, F.
Aielli, G.
Akatsuka, S.
Åkesson, T. P. A.
Akilli, E.
Akimov, A. V.
Alberghi, G. L.
Albert, J.
Albicocco, P.
Alconada Verzini, M. J.
Alderweireldt, S.
Aleksa, M.
Aleksandrov, I. N.
Alexa, C.
Alexopoulos, T.
Alhroob, M.
Ali, B.
Alimonti, G.
Alison, J.
Alkire, S. P.
Allaire, C.
Allbrooke, B. M. M.
Allen, B. W.
Allport, P. P.
Aloisio, A.
Alonso, A.
Alonso, F.
Alpigiani, C.
Alshehri, A. A.
Alstaty, M. I.
Alvarez Gonzalez, B.
Álvarez Piqueras, D.
Alviggi, M. G.
Amadio, B. T.
Amaral Coutinho, Y.
Ambroz, L.
Amelung, C.
Amidei, D.
Amor Dos Santos, S. P.
Amoroso, S.
Amrouche, C. S.
Anastopoulos, C.
Ancu, L. S.
Andari, N.
Andeen, T.
Anders, C. F.
Anders, J. K.
Anderson, K. J.
Andreazza, A.
Andrei, V.
Anelli, C. R.
Angelidakis, S.
Angelozzi, I.
Angerami, A.
Anisenkov, A. V.
Annovi, A.
Antel, C.
Anthony, M. T.
Antonelli, M.
Antrim, D. J. A.
Anulli, F.
Aoki, M.
Aperio Bella, L.
Arabidze, G.
Araque, J. P.
Araujo Ferraz, V.
Araujo Pereira, R.
Arce, A. T. H.
Ardell, R. E.
Arduh, F. A.
Arguin, J-F.
Argyropoulos, S.
Armbruster, A. J.
Armitage, L. J.
Armstrong, A
Arnaez, O.
Arnold, H.
Affiliation
Univ Arizona, Dept PhysIssue Date
2018-08-16
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AMER PHYSICAL SOCCitation
Aaboud, M & Aad, G & Abbott, B & Abdinov, O & Abeloos, B & Abhayasinghe, DK & Abidi, SH & AbouZeid, OS & Abraham, NL & Abramowicz, H & Abreu, H & Abulaiti, Y & Acharya, BS & Adachi, S & Adamczyk, L & Adelman, J & Adersberger, Michael & Adiguzel, A & Adye, T. (2018). Measurement of jet fragmentation in Pb plus Pb and pp collisions at root S-NN=5.02 TeV with the ATLAS detector. Physical Review C. 98.Journal
PHYSICAL REVIEW CRights
© 2018 CERN, for the ATLAS Collaboration.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
This paper presents a measurement of jet fragmentation functions in 0.49 nb(-1) of Pb +Pb collisions and 25 pb(-1) of pp collisions at root S-NN = 5.02 TeV collected in 2015 with the ATLAS detector at the LHC. These measurements provide insight into the jet quenching process in the quark-gluon plasma created in the aftermath of ultrarelativistic collisions between two nuclei. The modifications to the jet fragmentation functions are quantified by dividing the measurements in Pb+Pb collisions by baseline measurements in pp collisions. This ratio is studied as a function of the transverse momentum of the jet, the jet rapidity, and the centrality of the collision. In both collision systems, the jet fragmentation functions are measured for jets with transverse momentum between 126 and 398 GeV and with an absolute value of jet rapidity less than 2.1. An enhancement of particles carrying a small fraction of the jet momentum is observed, which increases with centrality and with increasing jet transverse momentum. Yields of particles carrying a very large fraction of the jet momentum are also observed to be enhanced. Between these two enhancements of the fragmentation functions a suppression of particles carrying an intermediate fraction of the jet momentum is observed in Pb+Pb collisions. A small dependence of the modifications on jet rapidity is observed.ISSN
2469-99852469-9993
Version
Final published versionSponsors
ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW, Austria; FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq, Brazil; FAPESP, Brazil; NSERC, Canada; NRC, Canada; CFI, Canada; CERN; CONICYT, Chile; CAS, China; NSFC, China; COLCIENCIAS, Colombia; MSMT CR, Czech Republic; MPO CR, Czech Republic; VSC CR, Czech Republic; DNRF, Denmark; DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, Germany; HGF, Germany; MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, Israel; I-CORE, Israel; Benoziyo Center, Israel; INFN, Italy; MEXT, Japan; JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW, Poland; NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia, Russian Federation; NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS, Slovenia; MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SERI, Switzerland; SNSF, Switzerland; Canton of Bern, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE, United States of America; NSF, United States of America; BCKDF, Canada; Canada Council, Canada; CANARIE, Canada; CRC, Canada; Compute Canada, Canada; FQRNT, Canada; Ontario Innovation Trust, Canada; EPLANET, European Union; ERC, European Union; ERDF, European Union; Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex and Idex, France; ANR, France; Region Auvergne, France; Fondation Partager le Savoir, France; DFG, Germany; AvH Foundation, Germany; Herakleitos programme; Thales programme; Aristeia programme; EU-ESF; Greek NSRF; BSF, Israel; GIF, Israel; Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain; Royal Society, United Kingdom; Leverhulme Trust, United Kingdom; MOST, China; Canton of Geneva, Switzerland; Horizon 2020, European UnionAdditional Links
https://link.aps.org/doi/10.1103/PhysRevC.98.024908ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevC.98.024908