Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV

B. Alver; B. B. Back; M. D. Baker; M. Ballintijn; D. S. Barton; R. R. Betts; A. A. Bickley; R. Bindel; W. Busza; A. Carroll; Z. Chai; M. P. Decowski; E. García; T. Gburek; N. George; K. Gulbrandsen; C. Halliwell; J. Hamblen; M. Hauer; C. Henderson; D. J. Hofman; R. S. Hollis; R. Hołyński; B. Holzman; A. Iordanova; E. Johnson; J. L. Kane; N. Khan; P. Kulinich; C. M. Kuo; W. Li; W. T. Lin; C. Loizides; S. Manly; A. C. Mignerey; R. Nouicer; A. Olszewski; R. Pak; C. Reed; C. Roland; G. Roland; J. Sagerer; H. Seals; I. Sedykh; C. E. Smith; M. A. Stankiewicz; P. Steinberg; G. S.F. Stephans; A. Sukhanov; M. B. Tonjes; A. Trzupek; C. Vale; G. J. Van Nieuwenhuizen; S. S. Vaurynovich; R. Verdier; G. I. Veres; P. Walters; E. Wenger; F. L.H. Wolfs; B. Wosiek; K. Woźniak; B. Wysłouch

doi:10.1103/PhysRevC.81.034915

Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV

B. Alver, B. B. Back, M. D. Baker, M. Ballintijn, D. S. Barton, R. R. Betts, A. A. Bickley, R. Bindel, W. Busza, A. Carroll, Z. Chai, M. P. Decowski, E. García, T. Gburek, N. George, K. Gulbrandsen, C. Halliwell, J. Hamblen, M. Hauer, C. HendersonD. J. Hofman, R. S. Hollis, R. Hołyński, B. Holzman, A. Iordanova, E. Johnson, J. L. Kane, N. Khan, P. Kulinich, C. M. Kuo, W. Li, W. T. Lin, C. Loizides, S. Manly, A. C. Mignerey, R. Nouicer, A. Olszewski, R. Pak, C. Reed, C. Roland, G. Roland, J. Sagerer, H. Seals, I. Sedykh, C. E. Smith, M. A. Stankiewicz, P. Steinberg, G. S.F. Stephans, A. Sukhanov, M. B. Tonjes, A. Trzupek, C. Vale, G. J. Van Nieuwenhuizen, S. S. Vaurynovich, R. Verdier, G. I. Veres, P. Walters, E. Wenger, F. L.H. Wolfs, B. Wosiek, K. Woźniak, B. Wysłouch

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Abstract

This article presents results on event-by-event elliptic flow fluctuations in Au+Au collisions at √sNN= 200 GeV, where the contribution from non-flow correlations has been subtracted. An analysis method is introduced to measure non-flow correlations, relying on the assumption that non-flow correlations are most prominent at short ranges (|Δη|<2). Assuming that non-flow correlations are of the order that is observed in p+p collisions for long-range correlations (|Δη|>2), relative elliptic flow fluctuations of approximately 30-40% are observed. These results are consistent with predictions based on spatial fluctuations of the participating nucleons in the initial nuclear overlap region. It is found that the long-range non-flow correlations in Au+Au collisions would have to be more than an order of magnitude stronger compared to the p+p data to lead to the observed azimuthal anisotropy fluctuations with no intrinsic elliptic flow fluctuations.

Original language	English
Article number	034915
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.81.034915
State	Published - 31 Mar 2010

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10.1103/PhysRevC.81.034915

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Alver, B., Back, B. B., Baker, M. D., Ballintijn, M., Barton, D. S., Betts, R. R., Bickley, A. A., Bindel, R., Busza, W., Carroll, A., Chai, Z., Decowski, M. P., García, E., Gburek, T., George, N., Gulbrandsen, K., Halliwell, C., Hamblen, J., Hauer, M., ... Wysłouch, B. (2010). Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV. Physical Review C - Nuclear Physics, 81(3), [034915]. https://doi.org/10.1103/PhysRevC.81.034915

Alver, B. ; Back, B. B. ; Baker, M. D. ; Ballintijn, M. ; Barton, D. S. ; Betts, R. R. ; Bickley, A. A. ; Bindel, R. ; Busza, W. ; Carroll, A. ; Chai, Z. ; Decowski, M. P. ; García, E. ; Gburek, T. ; George, N. ; Gulbrandsen, K. ; Halliwell, C. ; Hamblen, J. ; Hauer, M. ; Henderson, C. ; Hofman, D. J. ; Hollis, R. S. ; Hołyński, R. ; Holzman, B. ; Iordanova, A. ; Johnson, E. ; Kane, J. L. ; Khan, N. ; Kulinich, P. ; Kuo, C. M. ; Li, W. ; Lin, W. T. ; Loizides, C. ; Manly, S. ; Mignerey, A. C. ; Nouicer, R. ; Olszewski, A. ; Pak, R. ; Reed, C. ; Roland, C. ; Roland, G. ; Sagerer, J. ; Seals, H. ; Sedykh, I. ; Smith, C. E. ; Stankiewicz, M. A. ; Steinberg, P. ; Stephans, G. S.F. ; Sukhanov, A. ; Tonjes, M. B. ; Trzupek, A. ; Vale, C. ; Van Nieuwenhuizen, G. J. ; Vaurynovich, S. S. ; Verdier, R. ; Veres, G. I. ; Walters, P. ; Wenger, E. ; Wolfs, F. L.H. ; Wosiek, B. ; Woźniak, K. ; Wysłouch, B. / Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV. In: Physical Review C - Nuclear Physics. 2010 ; Vol. 81, No. 3.

@article{f2eedf1cee794b6090f166e1194de403,

title = "Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV",

abstract = "This article presents results on event-by-event elliptic flow fluctuations in Au+Au collisions at √sNN= 200 GeV, where the contribution from non-flow correlations has been subtracted. An analysis method is introduced to measure non-flow correlations, relying on the assumption that non-flow correlations are most prominent at short ranges (|Δη|<2). Assuming that non-flow correlations are of the order that is observed in p+p collisions for long-range correlations (|Δη|>2), relative elliptic flow fluctuations of approximately 30-40% are observed. These results are consistent with predictions based on spatial fluctuations of the participating nucleons in the initial nuclear overlap region. It is found that the long-range non-flow correlations in Au+Au collisions would have to be more than an order of magnitude stronger compared to the p+p data to lead to the observed azimuthal anisotropy fluctuations with no intrinsic elliptic flow fluctuations.",

author = "B. Alver and Back, {B. B.} and Baker, {M. D.} and M. Ballintijn and Barton, {D. S.} and Betts, {R. R.} and Bickley, {A. A.} and R. Bindel and W. Busza and A. Carroll and Z. Chai and Decowski, {M. P.} and E. Garc{\'i}a and T. Gburek and N. George and K. Gulbrandsen and C. Halliwell and J. Hamblen and M. Hauer and C. Henderson and Hofman, {D. J.} and Hollis, {R. S.} and R. Ho{\l}y{\'n}ski and B. Holzman and A. Iordanova and E. Johnson and Kane, {J. L.} and N. Khan and P. Kulinich and Kuo, {C. M.} and W. Li and Lin, {W. T.} and C. Loizides and S. Manly and Mignerey, {A. C.} and R. Nouicer and A. Olszewski and R. Pak and C. Reed and C. Roland and G. Roland and J. Sagerer and H. Seals and I. Sedykh and Smith, {C. E.} and Stankiewicz, {M. A.} and P. Steinberg and Stephans, {G. S.F.} and A. Sukhanov and Tonjes, {M. B.} and A. Trzupek and C. Vale and {Van Nieuwenhuizen}, {G. J.} and Vaurynovich, {S. S.} and R. Verdier and Veres, {G. I.} and P. Walters and E. Wenger and Wolfs, {F. L.H.} and B. Wosiek and K. Wo{\'z}niak and B. Wys{\l}ouch",

year = "2010",

month = mar,

day = "31",

doi = "10.1103/PhysRevC.81.034915",

language = "???core.languages.en_GB???",

volume = "81",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "3",

}

Alver, B, Back, BB, Baker, MD, Ballintijn, M, Barton, DS, Betts, RR, Bickley, AA, Bindel, R, Busza, W, Carroll, A, Chai, Z, Decowski, MP, García, E, Gburek, T, George, N, Gulbrandsen, K, Halliwell, C, Hamblen, J, Hauer, M, Henderson, C, Hofman, DJ, Hollis, RS, Hołyński, R, Holzman, B, Iordanova, A, Johnson, E, Kane, JL, Khan, N, Kulinich, P, Kuo, CM, Li, W, Lin, WT, Loizides, C, Manly, S, Mignerey, AC, Nouicer, R, Olszewski, A, Pak, R, Reed, C, Roland, C, Roland, G, Sagerer, J, Seals, H, Sedykh, I, Smith, CE, Stankiewicz, MA, Steinberg, P, Stephans, GSF, Sukhanov, A, Tonjes, MB, Trzupek, A, Vale, C, Van Nieuwenhuizen, GJ, Vaurynovich, SS, Verdier, R, Veres, GI, Walters, P, Wenger, E, Wolfs, FLH, Wosiek, B, Woźniak, K & Wysłouch, B 2010, 'Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV', Physical Review C - Nuclear Physics, vol. 81, no. 3, 034915. https://doi.org/10.1103/PhysRevC.81.034915

Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV. / Alver, B.; Back, B. B.; Baker, M. D.; Ballintijn, M.; Barton, D. S.; Betts, R. R.; Bickley, A. A.; Bindel, R.; Busza, W.; Carroll, A.; Chai, Z.; Decowski, M. P.; García, E.; Gburek, T.; George, N.; Gulbrandsen, K.; Halliwell, C.; Hamblen, J.; Hauer, M.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Hołyński, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Khan, N.; Kulinich, P.; Kuo, C. M.; Li, W.; Lin, W. T.; Loizides, C.; Manly, S.; Mignerey, A. C.; Nouicer, R.; Olszewski, A.; Pak, R.; Reed, C.; Roland, C.; Roland, G.; Sagerer, J.; Seals, H.; Sedykh, I.; Smith, C. E.; Stankiewicz, M. A.; Steinberg, P.; Stephans, G. S.F.; Sukhanov, A.; Tonjes, M. B.; Trzupek, A.; Vale, C.; Van Nieuwenhuizen, G. J.; Vaurynovich, S. S.; Verdier, R.; Veres, G. I.; Walters, P.; Wenger, E.; Wolfs, F. L.H.; Wosiek, B.; Woźniak, K.; Wysłouch, B.

In: Physical Review C - Nuclear Physics, Vol. 81, No. 3, 034915, 31.03.2010.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV

AU - Alver, B.

AU - Back, B. B.

AU - Baker, M. D.

AU - Ballintijn, M.

AU - Barton, D. S.

AU - Betts, R. R.

AU - Bickley, A. A.

AU - Bindel, R.

AU - Busza, W.

AU - Carroll, A.

AU - Chai, Z.

AU - Decowski, M. P.

AU - García, E.

AU - Gburek, T.

AU - George, N.

AU - Gulbrandsen, K.

AU - Halliwell, C.

AU - Hamblen, J.

AU - Hauer, M.

AU - Henderson, C.

AU - Hofman, D. J.

AU - Hollis, R. S.

AU - Hołyński, R.

AU - Holzman, B.

AU - Iordanova, A.

AU - Johnson, E.

AU - Kane, J. L.

AU - Khan, N.

AU - Kulinich, P.

AU - Kuo, C. M.

AU - Li, W.

AU - Lin, W. T.

AU - Loizides, C.

AU - Manly, S.

AU - Mignerey, A. C.

AU - Nouicer, R.

AU - Olszewski, A.

AU - Pak, R.

AU - Reed, C.

AU - Roland, C.

AU - Roland, G.

AU - Sagerer, J.

AU - Seals, H.

AU - Sedykh, I.

AU - Smith, C. E.

AU - Stankiewicz, M. A.

AU - Steinberg, P.

AU - Stephans, G. S.F.

AU - Sukhanov, A.

AU - Tonjes, M. B.

AU - Trzupek, A.

AU - Vale, C.

AU - Van Nieuwenhuizen, G. J.

AU - Vaurynovich, S. S.

AU - Verdier, R.

AU - Veres, G. I.

AU - Walters, P.

AU - Wenger, E.

AU - Wolfs, F. L.H.

AU - Wosiek, B.

AU - Woźniak, K.

AU - Wysłouch, B.

PY - 2010/3/31

Y1 - 2010/3/31

N2 - This article presents results on event-by-event elliptic flow fluctuations in Au+Au collisions at √sNN= 200 GeV, where the contribution from non-flow correlations has been subtracted. An analysis method is introduced to measure non-flow correlations, relying on the assumption that non-flow correlations are most prominent at short ranges (|Δη|<2). Assuming that non-flow correlations are of the order that is observed in p+p collisions for long-range correlations (|Δη|>2), relative elliptic flow fluctuations of approximately 30-40% are observed. These results are consistent with predictions based on spatial fluctuations of the participating nucleons in the initial nuclear overlap region. It is found that the long-range non-flow correlations in Au+Au collisions would have to be more than an order of magnitude stronger compared to the p+p data to lead to the observed azimuthal anisotropy fluctuations with no intrinsic elliptic flow fluctuations.

AB - This article presents results on event-by-event elliptic flow fluctuations in Au+Au collisions at √sNN= 200 GeV, where the contribution from non-flow correlations has been subtracted. An analysis method is introduced to measure non-flow correlations, relying on the assumption that non-flow correlations are most prominent at short ranges (|Δη|<2). Assuming that non-flow correlations are of the order that is observed in p+p collisions for long-range correlations (|Δη|>2), relative elliptic flow fluctuations of approximately 30-40% are observed. These results are consistent with predictions based on spatial fluctuations of the participating nucleons in the initial nuclear overlap region. It is found that the long-range non-flow correlations in Au+Au collisions would have to be more than an order of magnitude stronger compared to the p+p data to lead to the observed azimuthal anisotropy fluctuations with no intrinsic elliptic flow fluctuations.

UR - http://www.scopus.com/inward/record.url?scp=77950923946&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.81.034915

DO - 10.1103/PhysRevC.81.034915

M3 - 期刊論文

AN - SCOPUS:77950923946

VL - 81

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 3

M1 - 034915

ER -

Non-flow correlations and elliptic flow fluctuations in Au+Au collisions at √sNN=200 GeV

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