Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at ?sNN = 2.76 TeV
Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at ?sNN = 2.76 TeV
Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in ?sNN = 2.76 TeV PbPb collisions. Expressed in terms of the Fourier components of the azimuthal distribution, the n=3–6 harmonic coefficients are presented for charged particles as a function of their transverse momentum (0.3<pT<8.0GeV/c), collision centrality (0%–70%), and pseudorapidity (|?|<2.0). The data are analyzed using the event plane, multiparticle cumulant, and Lee-Yang zeros methods, which provide different sensitivities to initial-state fluctuations. Taken together with earlier LHC measurements of elliptic flow (n=2), the results on higher-order harmonic coefficients develop a more complete picture of the collective motion in high-energy heavy-ion collisions and shed light on the properties of the produced medium.
1-31
Chatrchyan, S.
e4af2e92-90c7-4a2f-a87a-471171a1207d
Khachatryan, V.
3ea104df-0bcf-40fc-a764-2311921cf360
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
11 April 2014
Chatrchyan, S.
e4af2e92-90c7-4a2f-a87a-471171a1207d
Khachatryan, V.
3ea104df-0bcf-40fc-a764-2311921cf360
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Chatrchyan, S., Khachatryan, V. and Sirunyan, A.M. et al.
(2014)
Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at ?sNN = 2.76 TeV.
Physical Review C, 89 (4), .
Abstract
Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in ?sNN = 2.76 TeV PbPb collisions. Expressed in terms of the Fourier components of the azimuthal distribution, the n=3–6 harmonic coefficients are presented for charged particles as a function of their transverse momentum (0.3<pT<8.0GeV/c), collision centrality (0%–70%), and pseudorapidity (|?|<2.0). The data are analyzed using the event plane, multiparticle cumulant, and Lee-Yang zeros methods, which provide different sensitivities to initial-state fluctuations. Taken together with earlier LHC measurements of elliptic flow (n=2), the results on higher-order harmonic coefficients develop a more complete picture of the collective motion in high-energy heavy-ion collisions and shed light on the properties of the produced medium.
Other
PhysRevC.89.044906
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Available under License Other.
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Published date: 11 April 2014
Organisations:
Physics & Astronomy
Identifiers
Local EPrints ID: 369419
URI: http://eprints.soton.ac.uk/id/eprint/369419
ISSN: 0556-2813
PURE UUID: edf8ad7a-f3eb-458a-b596-737d8c4fa82c
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Date deposited: 25 Sep 2014 15:39
Last modified: 15 Mar 2024 03:28
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Contributors
Author:
S. Chatrchyan
Author:
V. Khachatryan
Author:
A.M. Sirunyan
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