Study of medium modified jet shape observables in Pb-Pb collisions at √sNN=2.76 TeV using EPOS and JEWEL event generators

被引：0
作者：
Saha, Sumit Kumar [1 ]
Sarkar, Debojit [2 ,3 ,4 ]
Chattopadhyay, Subhasis [1 ]
Sheikh, Ashik Ikbal [1 ]
Prasad, Sidharth Kumar [3 ]
机构：
[1] HBNI, Variable Energy Cyclotron Ctr, 1-AF Bidhannagar, Kolkata 700064, India
[2] Wayne State Univ, 666 W Hancock, Detroit, MI 48201 USA
[3] Bose Inst, CAPSS, Block EN,Sect 5, Kolkata 700091, India
[4] Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy
来源：
NUCLEAR PHYSICS A | 2021年 / 1006卷
关键词：
Jet-medium interaction; Pb-Pb collisions; Jet-shape observables; Hydrodynamics; EPOS-3; JEWEL; PERSPECTIVE; MATTER;
D O I：
10.1016/j.nuclphysa.2020.122064
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The jet-medium interaction in high energy heavy ion collisions is an important phenomenon to characterize the hot and dense medium produced in such collisions. The study of medium-induced modifications to the substructure of inclusive charged jets indicates a redistribution of energy inside the jet cone and provides insight into the energy loss mechanisms of jets in the medium. We investigate the in-medium modification to two jet shape observables i.e., the differential jet shape (rho(r)) and the angularity (g) in the most central Pb - Pb collisions at root s(NN) = 2.76 TeV using two commonly used event generators, JEWEL (recoil OFF) and EPOS-3 in the jet-pT range of 20-40 GeV/c. JEWEL with recoil OFF has been used primarily as a reference system as that has been found to explain the global jet observables satisfactorily but lacks in jet-shape variables at higher jet-radii. EPOS-3 that explains the bulk properties in such collisions quite well takes into account a hydrodynamically evolving bulk matter, jets, and hard-soft interactions. A comparison between the results from these models shows that while JEWEL (recoil OFF) does not explain the distribution of lost energy at higher radii with respect to the jet-axis, EPOS-3 explains the effect quite well. However, in EPOS-3, the partonic energy loss mechanism and secondary hard-soft interactions during hadronization and hadronic cascade phase are different from the conventional jet energy loss models. The current study can, therefore, provide important new insights on mechanisms regarding the modeling of the medium and hard-soft interactions in heavy ion collisions. Published by Elsevier B.V.
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页数：10
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共 46 条
  • [1] Study of jet shapes in inclusive jet production in pp collisions at √s=7 TeV using the ATLAS detector
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdelalim, A. A.
    Abdesselam, A.
    Abdinov, O.
    Abi, B.
    Abolins, M.
    Abramowicz, H.
    Abreu, H.
    Acerbi, E.
    Acharya, B. S.
    Ackers, M.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Aderholz, M.
    Adomeit, S.
    Adragna, P.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Aharrouche, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akdogan, T.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alam, M. S.
    Alam, M. A.
    Albrand, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Aleppo, M.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Aliyev, M.
    Allport, P. P.
    Allwood-Spiers, S. E.
    [J]. PHYSICAL REVIEW D, 2011, 83 (05):
  • [2] Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at √sNN=2.76 TeV with the ATLAS Detector at the LHC
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Abdelalim, A. A.
    Abdesselam, A.
    Abdinov, O.
    Abi, B.
    Abolins, M.
    Abramowicz, H.
    Abreu, H.
    Acerbi, E.
    Acharya, B. S.
    Ackers, M.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Aderholz, M.
    Adomeit, S.
    Adragna, P.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Aharrouche, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akdogan, T.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alam, M. S.
    Alam, M. A.
    Albrand, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Aleppo, M.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Aliyev, M.
    Allport, P. P.
    Allwood-Spiers, S. E.
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (25)
  • [3] Higher Harmonic Anisotropic Flow Measurements of Charged Particles in Pb-Pb Collisions at √sNN=2.76 TeV
    Aamodt, K.
    Abelev, B.
    Abrahantes Quintana, A.
    Adamova, D.
    Adare, A. M.
    Aggarwal, M. M.
    Rinella, G. Aglieri
    Agocs, A. G.
    Agostinelli, A.
    Aguilar Salazar, S.
    Ahammed, Z.
    Ahmad, N.
    Masoodi, A. Ahmad
    Ahn, S. U.
    Akindinov, A.
    Aleksandrov, D.
    Alessandro, B.
    Alfaro Molina, R.
    Alici, A.
    Alkin, A.
    Almaraz Avina, E.
    Alt, T.
    Altini, V.
    Altsybeev, I.
    Andrei, C.
    Andronic, A.
    Anguelov, V.
    Anson, C.
    Anticic, T.
    Antinori, F.
    Antonioli, P.
    Aphecetche, L.
    Appelshaeuser, H.
    Arbor, N.
    Arcelli, S.
    Arend, A.
    Armesto, N.
    Arnaldi, R.
    Aronsson, T.
    Arsene, I. C.
    Arslandok, M.
    Asryan, A.
    Augustinus, A.
    Averbeck, R.
    Awes, T. C.
    Aysto, J.
    Azmi, M. D.
    Bach, M.
    Badala, A.
    Baek, Y. W.
    [J]. PHYSICAL REVIEW LETTERS, 2011, 107 (03)
  • [4] Elliptic Flow of Charged Particles in Pb-Pb Collisions at √sNN=2.76 TeV
    Aamodt, K.
    Abelev, B.
    Abrahantes Quintana, A.
    Adamova, D.
    Adare, A. M.
    Aggarwal, M. M.
    Rinella, G. Aglieri
    Agocs, A. G.
    Aguilar Salazar, S.
    Ahammed, Z.
    Masoodi, A. Ahmad
    Ahmad, N.
    Ahn, S. U.
    Akindinov, A.
    Aleksandrov, D.
    Alessandro, B.
    Alfaro Molina, R.
    Alici, A.
    Alkin, A.
    Almaraz Avina, E.
    Alt, T.
    Altini, V.
    Altinpinar, S.
    Altsybeev, I.
    Andrei, C.
    Andronic, A.
    Anguelov, V.
    Anson, C.
    Anticic, T.
    Antinori, F.
    Antonioli, P.
    Aphecetche, L.
    H. Appelshaeuser
    Arbor, N.
    Arcelli, S.
    Arend, A.
    Armesto, N.
    Arnaldi, R.
    Aronsson, T.
    Arsene, I. C.
    Asryan, A.
    Augustinus, A.
    Averbeck, R.
    Awes, T. C.
    Aysto, J.
    Azmi, M. D.
    Bach, M.
    Badala, A.
    Baek, Y. W.
    Bagnasco, S.
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (25)
  • [5] Charged jet cross sections and properties in proton-proton collisions at √s=7 TeV
    Abelev, B.
    Adam, J.
    Adamova, D.
    Aggarwal, M. M.
    Rinella, G. Aglieri
    Agnello, M.
    Agostinelli, A.
    Agrawal, N.
    Ahammed, Z.
    Ahmad, N.
    Ahmed, I.
    Ahn, S. U.
    Ahn, S. A.
    Aimo, I.
    Aiola, S.
    Ajaz, M.
    Akindinov, A.
    Alam, S. N.
    Aleksandrov, D.
    Alessandro, B.
    Alexandre, D.
    Alici, A.
    Alkin, A.
    Alme, J.
    Alt, T.
    Altinpinar, S.
    Altsybeev, I.
    Garcia Prado, C. Alves
    Andrei, C.
    Andronic, A.
    Anguelov, V.
    Anielski, J.
    Anticic, T.
    Antinori, F.
    Antonioli, P.
    Aphecetche, L.
    Appelshaeuser, H.
    Arcelli, S.
    Armesto, N.
    Arnaldi, R.
    Aronsson, T.
    Arsene, I. C.
    Arslandok, M.
    Augustinus, A.
    Averbeck, R.
    Awes, T. C.
    Azmi, M. D.
    Bach, M.
    Badala, A.
    Baek, Y. W.
    [J]. PHYSICAL REVIEW D, 2015, 91 (11)
  • [6] Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC:: Experimental evaluation by the PHENIX Collaboration
    Adcox, K
    Adler, SS
    Afanasiev, S
    Aidala, C
    Ajitanand, NN
    Akiba, Y
    Al-Jamel, A
    Alexander, J
    Amirikas, R
    Aoki, K
    Aphecetche, L
    Arai, Y
    Armendariz, R
    Aronson, SH
    Averbeck, R
    Awes, TC
    Azmoun, R
    Babintsev, V
    Baldisseri, A
    Barish, KN
    Barnes, PD
    Barrette, J
    Bassalleck, B
    Bathe, S
    Batsouli, S
    Baublis, V
    Bauer, F
    Bazilevsky, A
    Belikov, S
    Bellaiche, FG
    Belyaev, ST
    Bennett, MJ
    Berdnikov, Y
    Bhagavatula, S
    Bjorndal, MT
    Boissevain, JG
    Borel, H
    Borenstein, S
    Botelho, S
    Brooks, ML
    Brown, DS
    Bruner, N
    Bucher, D
    Buesching, H
    Bumazhnov, V
    Bunce, G
    Burward-Hoy, JM
    Butsyk, S
    Camard, X
    Carey, TA
    [J]. NUCLEAR PHYSICS A, 2005, 757 (1-2) : 184 - 283
  • [7] ALICE Collaboration, ARXIV180504361NUCLEX
  • [8] [Anonymous], 2012, ATLASCONF2012115
  • [9] [Anonymous], ARXIV08092949NUCLEX
  • [10] [Anonymous], 1982, PUB8259THY FERM
12345