Limitation of multiparticle correlations for studying the event-by-event distribution of harmonic flow in heavy-ion collisions

被引：15
作者：
Jia, Jiangyong [1 ,2 ]
Radhakrishnan, Sooraj [1 ]
机构：
[1] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA
[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11796 USA
来源：
PHYSICAL REVIEW C | 2015年 / 92卷 / 02期
基金：
美国国家科学基金会;
关键词：
RELATIVISTIC NUCLEAR COLLISIONS; PLUS PB COLLISIONS; ANGULAR-CORRELATIONS; LONG-RANGE; PPB; ANISOTROPY; SIDE;
D O I：
10.1103/PhysRevC.92.024911
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 sensitivity of flow harmonics from cumulants to the event-by-event flow distribution p(nu(n)) is investigated using a simple central moment expansion approach. For a narrow distribution whose width is much smaller than the mean sigma(n) << <nu(n)>, the differences between the first three higher-order cumulant estimates nu(n){4}, nu(n){6}, and nu(n){8} are not very sensitive to the shape of p(nu(n)). For a broad distribution sigma(n) greater than or similar to <nu(n)>, the higher-order cumulant estimates differ from each other but may change sign and become ill defined. This sign change arises from the choice of p(nu(n)), without the need to invoke nonflow effects. Direct extraction of p(nu(n)) via a data-driven unfolding method used by the ATLAS experiment is a more preferred approach for flow distribution measurement.
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共 37 条
  • [1] Aad G, 2014, EUR PHYS J C, V74, DOI 10.1140/epjc/s10052-014-3157-z
  • [2] Measurement of long-range pseudorapidity correlations and azimuthal harmonics in √sNN=5.02 TeV proton-lead collisions with the ATLAS detector
    Aad, G.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdinov, O.
    Aben, R.
    Abi, B.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Abreu, R.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Agatonovic-Jovin, T.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Ahlen, S. P.
    Ahmadov, F.
    Aielli, G.
    Akerstedt, H.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alberghi, G. L.
    Albert, J.
    Albrand, S.
    Alconada Verzini, M. J.
    Aleksa, M.
    Aleksandrov, I. N.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Alimonti, G.
    Alio, L.
    Alison, J.
    Allbrooke, B. M. M.
    Allison, L. J.
    Allport, P. P.
    Almond, J.
    Aloisio, A.
    Alonso, A.
    Alonso, F.
    [J]. PHYSICAL REVIEW C, 2014, 90 (04)
  • [3] Aad G, 2013, J HIGH ENERGY PHYS, DOI 10.1007/JHEP11(2013)183
  • [4] Measurement with the ATLAS detector of multi-particle azimuthal correlations in p plus Pb collisions at √sNN=5.02 TeV
    Aad, G.
    Abajyan, T.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdelalim, A. A.
    Abdinov, O.
    Aben, R.
    Abi, B.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Abulaiti, Y.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Adomeit, S.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alam, M. A.
    Albert, J.
    Albrand, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Allbrooke, B. M. M.
    Allison, L. J.
    Allport, P. P.
    Allwood-Spiers, S. E.
    [J]. PHYSICS LETTERS B, 2013, 725 (1-3) : 60 - 78
  • [5] Observation of Associated Near-Side and Away-Side Long-Range Correlations in √SNN=5.02 TeV Proton-Lead Collisions with the ATLAS Detector
    Aad, G.
    Abajyan, T.
    Abbott, B.
    Abdallah, J.
    Khalek, S. Abdel
    Abdelalim, A. A.
    Abdinov, O.
    Aben, R.
    Abi, B.
    Abolins, M.
    AbouZeid, O. S.
    Abramowicz, H.
    Abreu, H.
    Acharya, B. S.
    Adamczyk, L.
    Adams, D. L.
    Addy, T. N.
    Adelman, J.
    Adomeit, S.
    Adragna, P.
    Adye, T.
    Aefsky, S.
    Aguilar-Saavedra, J. A.
    Agustoni, M.
    Ahlen, S. P.
    Ahles, F.
    Ahmad, A.
    Ahsan, M.
    Aielli, G.
    Akesson, T. P. A.
    Akimoto, G.
    Akimov, A. V.
    Alam, M. A.
    Albert, J.
    Albrand, S.
    Aleksa, M.
    Aleksandrov, I. N.
    Alessandria, F.
    Alexa, C.
    Alexander, G.
    Alexandre, G.
    Alexopoulos, T.
    Alhroob, M.
    Aliev, M.
    Alimonti, G.
    Alison, J.
    Allbrooke, B. M. M.
    Allison, L. J.
    Allport, P. P.
    Allwood-Spiers, S. E.
    [J]. PHYSICAL REVIEW LETTERS, 2013, 110 (18)
  • [6] Multiparticle azimuthal correlations in p-Pb and Pb-Pb collisions at the CERN Large Hadron Collider
    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.
    Alves Garcia Prado, C.
    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 C, 2014, 90 (05)
  • [7] Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at √SNN=2.76 TeV
    Abelev, B.
    Adam, J.
    Adamova, D.
    Adare, A. M.
    Aggarwal, M. M.
    Rinella, G. Aglieri
    Agocs, A. G.
    Agostinelli, A.
    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.
    Alme, J.
    Alt, T.
    Altini, V.
    Altinpinar, S.
    Altsybeev, I.
    Andrei, C.
    Andronic, A.
    Anguelov, V.
    Anielski, J.
    Anticic, T.
    Antinori, F.
    Antonioli, P.
    Aphecetche, L.
    Appelshaeuser, H.
    Arbor, N.
    Arcelli, S.
    Armesto, N.
    Arnaldi, R.
    Aronsson, T.
    Arsene, I. C.
    Arslandok, M.
    Augustinus, A.
    Averbeck, R.
    Awes, T. C.
    Aysto, J.
    Azmi, M. D.
    Bach, M.
    Badala, A.
    Baek, Y. W.
    Bailhache, R.
    [J]. PHYSICS LETTERS B, 2013, 719 (1-3) : 18 - 28
  • [8] Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central d plus Au Collisions at √sNN=200 GeV
    Adare, A.
    Aidala, C.
    Ajitanand, N. N.
    Akiba, Y.
    Al-Bataineh, H.
    Alexander, J.
    Angerami, A.
    Aoki, K.
    Apadula, N.
    Aramaki, Y.
    Atomssa, E. T.
    Averbeck, R.
    Awes, T. C.
    Azmoun, B.
    Babintsev, V.
    Bai, M.
    Baksay, G.
    Baksay, L.
    Barish, K. N.
    Bassalleck, B.
    Basye, A. T.
    Bathe, S.
    Baublis, V.
    Baumann, C.
    Bazilevsky, A.
    Belikov, S.
    Belmont, R.
    Bennett, R.
    Bhom, J. H.
    Blau, D. S.
    Bok, J. S.
    Boyle, K.
    Brooks, M. L.
    Buesching, H.
    Bumazhnov, V.
    Bunce, G.
    Butsyk, S.
    Campbell, S.
    Caringi, A.
    Chen, C-H
    Chi, C. Y.
    Chiu, M.
    Choi, I. J.
    Choi, J. B.
    Choudhury, R. K.
    Christiansen, P.
    Chujo, T.
    Chung, P.
    Chvala, O.
    Cianciolo, V.
    [J]. PHYSICAL REVIEW LETTERS, 2013, 111 (21)
  • [9] [Anonymous], ARXIV08092949
  • [10] [Anonymous], CERNTHESIS2012018
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