Collision geometry scaling of Au+Au pseudorapidity density from √SNN=19.6 to 200 GeV

B. B. Back; M. D. Baker; M. Ballintijn; D. S. Barton; R. R. Betts; A. A. Bickley; R. Bindel; A. Budzanowski; W. Busza; A. Carroll; M. P. Decowski; E. García; N. George; K. Gulbrandsen; S. Gushue; C. Halliwell; J. Hamblen; G. A. Heintzelman; C. Henderson; D. J. Hofman; R. S. Hollis; R. Hołyński; B. Holzman; A. Iordanova; E. Johnson; J. L. Kane; J. Katzy; N. Khan; W. Kucewicz; P. Kulinich; C. M. Kuo; W. T. Lin; S. Manly; D. McLeod; A. C. Mignerey; R. Nouicer; A. Olszewski; R. Pak; I. C. Park; H. Pernegger; C. Reed; L. P. Remsberg; M. Reuter; C. Roland; G. Roland; L. Rosenberg; J. Sagerer; P. Sarin; P. Sawicki; W. Skulski; P. Steinberg; G. S.F. Stephans; A. Sukhanov; M. B. Tonjes; J. L. Tang; A. Trzupek; C. Vale; G. J. Van Nieuwenhuizen; R. Verdier; F. L.H. Wolfs; B. Wosiek; K. Woźniak; A. H. Wuosmaa; B. Wysłouch

doi:10.1103/PhysRevC.70.021902

Collision geometry scaling of Au+Au pseudorapidity density from √S_NN=19.6 to 200 GeV

B. B. Back, M. D. Baker, M. Ballintijn, D. S. Barton, R. R. Betts, A. A. Bickley, R. Bindel, A. Budzanowski, W. Busza, A. Carroll, M. P. Decowski, E. García, N. George, K. Gulbrandsen, S. Gushue, C. Halliwell, J. Hamblen, G. A. Heintzelman, C. Henderson, D. J. HofmanR. S. Hollis, R. Hołyński, B. Holzman, A. Iordanova, E. Johnson, J. L. Kane, J. Katzy, N. Khan, W. Kucewicz, P. Kulinich, C. M. Kuo, W. T. Lin, S. Manly, D. McLeod, A. C. Mignerey, R. Nouicer, A. Olszewski, R. Pak, I. C. Park, H. Pernegger, C. Reed, L. P. Remsberg, M. Reuter, C. Roland, G. Roland, L. Rosenberg, J. Sagerer, P. Sarin, P. Sawicki, W. Skulski, P. Steinberg, G. S.F. Stephans, A. Sukhanov, M. B. Tonjes, J. L. Tang, A. Trzupek, C. Vale, G. J. Van Nieuwenhuizen, R. Verdier, F. L.H. Wolfs, B. Wosiek, K. Woźniak, A. H. Wuosmaa, B. Wysłouch

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Abstract

The centrality dependence of the midrapidity charged particle multiplicity in Au+Au heavy-ion collisions at √S_NN=19.6 and 200 GeV is presented. Within a simple model, the fraction of hard (scaling with number of binary collisions) to soft (scaling with number of participant pairs) interactions is consistent with a value of x=0.13±0.01(stat)±0. 05(syst) at both energies. The experimental results at both energies, scaled by inelastic p(p̄)+p collision data, agree within systematic errors. The ratio of the data was found not to depend on centrality over the studied range and yields a simple linear scale factor of R_200/19.6=2.03±0. 02(stat) ±0.05(syst).

Original language	English
Article number	021902
Pages (from-to)	021902-1-021902-5
Journal	Physical Review C - Nuclear Physics
Volume	70
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.70.021902
State	Published - Aug 2004

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10.1103/PhysRevC.70.021902

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Back, B. B., Baker, M. D., Ballintijn, M., Barton, D. S., Betts, R. R., Bickley, A. A., Bindel, R., Budzanowski, A., Busza, W., Carroll, A., Decowski, M. P., García, E., George, N., Gulbrandsen, K., Gushue, S., Halliwell, C., Hamblen, J., Heintzelman, G. A., Henderson, C., ... Wysłouch, B. (2004). Collision geometry scaling of Au+Au pseudorapidity density from √S_NN=19.6 to 200 GeV. Physical Review C - Nuclear Physics, 70(2), 021902-1-021902-5. [021902]. https://doi.org/10.1103/PhysRevC.70.021902

@article{18b0d7e6694f4e138184d923f588e790,

title = "Collision geometry scaling of Au+Au pseudorapidity density from √SNN=19.6 to 200 GeV",

abstract = "The centrality dependence of the midrapidity charged particle multiplicity in Au+Au heavy-ion collisions at √SNN=19.6 and 200 GeV is presented. Within a simple model, the fraction of hard (scaling with number of binary collisions) to soft (scaling with number of participant pairs) interactions is consistent with a value of x=0.13±0.01(stat)±0. 05(syst) at both energies. The experimental results at both energies, scaled by inelastic p({\=p})+p collision data, agree within systematic errors. The ratio of the data was found not to depend on centrality over the studied range and yields a simple linear scale factor of R200/19.6=2.03±0. 02(stat) ±0.05(syst).",

author = "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 A. Budzanowski and W. Busza and A. Carroll and Decowski, {M. P.} and E. Garc{\'i}a and N. George and K. Gulbrandsen and S. Gushue and C. Halliwell and J. Hamblen and Heintzelman, {G. A.} 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 J. Katzy and N. Khan and W. Kucewicz and P. Kulinich and Kuo, {C. M.} and Lin, {W. T.} and S. Manly and D. McLeod and Mignerey, {A. C.} and R. Nouicer and A. Olszewski and R. Pak and Park, {I. C.} and H. Pernegger and C. Reed and Remsberg, {L. P.} and M. Reuter and C. Roland and G. Roland and L. Rosenberg and J. Sagerer and P. Sarin and P. Sawicki and W. Skulski and P. Steinberg and Stephans, {G. S.F.} and A. Sukhanov and Tonjes, {M. B.} and Tang, {J. L.} and A. Trzupek and C. Vale and {Van Nieuwenhuizen}, {G. J.} and R. Verdier and Wolfs, {F. L.H.} and B. Wosiek and K. Wo{\'z}niak and Wuosmaa, {A. H.} and B. Wys{\l}ouch",

note = "Funding Information: We express appreciation to the BNL management for approving the one day of running. This work was partially supported by U.S. DOE grants DE-AC02-98CH10886, DE-FG02-93ER40802, DE-FC02-94ER40818, DE-FG02-94ER40865, DE-FG02-99ER41099, and W-31-109-ENG-38, US NSF grants 9603486, 9722606 and 0072204, Polish KBN grant 2-P03B-10323, and NSC of Taiwan contract NSC 89-2112-M-008-024.",

year = "2004",

month = aug,

doi = "10.1103/PhysRevC.70.021902",

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volume = "70",

pages = "021902--1--021902--5",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "2",

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Back, BB, Baker, MD, Ballintijn, M, Barton, DS, Betts, RR, Bickley, AA, Bindel, R, Budzanowski, A, Busza, W, Carroll, A, Decowski, MP, García, E, George, N, Gulbrandsen, K, Gushue, S, Halliwell, C, Hamblen, J, Heintzelman, GA, Henderson, C, Hofman, DJ, Hollis, RS, Hołyński, R, Holzman, B, Iordanova, A, Johnson, E, Kane, JL, Katzy, J, Khan, N, Kucewicz, W, Kulinich, P, Kuo, CM , Lin, WT, Manly, S, McLeod, D, Mignerey, AC, Nouicer, R, Olszewski, A, Pak, R, Park, IC, Pernegger, H, Reed, C, Remsberg, LP, Reuter, M, Roland, C, Roland, G, Rosenberg, L, Sagerer, J, Sarin, P, Sawicki, P, Skulski, W, Steinberg, P, Stephans, GSF, Sukhanov, A, Tonjes, MB, Tang, JL, Trzupek, A, Vale, C, Van Nieuwenhuizen, GJ, Verdier, R, Wolfs, FLH, Wosiek, B, Woźniak, K, Wuosmaa, AH & Wysłouch, B 2004, 'Collision geometry scaling of Au+Au pseudorapidity density from √S_NN=19.6 to 200 GeV', Physical Review C - Nuclear Physics, vol. 70, no. 2, 021902, pp. 021902-1-021902-5. https://doi.org/10.1103/PhysRevC.70.021902

TY - JOUR

T1 - Collision geometry scaling of Au+Au pseudorapidity density from √SNN=19.6 to 200 GeV

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 - Budzanowski, A.

AU - Busza, W.

AU - Carroll, A.

AU - Decowski, M. P.

AU - García, E.

AU - George, N.

AU - Gulbrandsen, K.

AU - Gushue, S.

AU - Halliwell, C.

AU - Hamblen, J.

AU - Heintzelman, G. A.

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 - Katzy, J.

AU - Khan, N.

AU - Kucewicz, W.

AU - Kulinich, P.

AU - Kuo, C. M.

AU - Lin, W. T.

AU - Manly, S.

AU - McLeod, D.

AU - Mignerey, A. C.

AU - Nouicer, R.

AU - Olszewski, A.

AU - Pak, R.

AU - Park, I. C.

AU - Pernegger, H.

AU - Reed, C.

AU - Remsberg, L. P.

AU - Reuter, M.

AU - Roland, C.

AU - Roland, G.

AU - Rosenberg, L.

AU - Sagerer, J.

AU - Sarin, P.

AU - Sawicki, P.

AU - Skulski, W.

AU - Steinberg, P.

AU - Stephans, G. S.F.

AU - Sukhanov, A.

AU - Tonjes, M. B.

AU - Tang, J. L.

AU - Trzupek, A.

AU - Vale, C.

AU - Van Nieuwenhuizen, G. J.

AU - Verdier, R.

AU - Wolfs, F. L.H.

AU - Wosiek, B.

AU - Woźniak, K.

AU - Wuosmaa, A. H.

AU - Wysłouch, B.

N1 - Funding Information: We express appreciation to the BNL management for approving the one day of running. This work was partially supported by U.S. DOE grants DE-AC02-98CH10886, DE-FG02-93ER40802, DE-FC02-94ER40818, DE-FG02-94ER40865, DE-FG02-99ER41099, and W-31-109-ENG-38, US NSF grants 9603486, 9722606 and 0072204, Polish KBN grant 2-P03B-10323, and NSC of Taiwan contract NSC 89-2112-M-008-024.

PY - 2004/8

Y1 - 2004/8

N2 - The centrality dependence of the midrapidity charged particle multiplicity in Au+Au heavy-ion collisions at √SNN=19.6 and 200 GeV is presented. Within a simple model, the fraction of hard (scaling with number of binary collisions) to soft (scaling with number of participant pairs) interactions is consistent with a value of x=0.13±0.01(stat)±0. 05(syst) at both energies. The experimental results at both energies, scaled by inelastic p(p̄)+p collision data, agree within systematic errors. The ratio of the data was found not to depend on centrality over the studied range and yields a simple linear scale factor of R200/19.6=2.03±0. 02(stat) ±0.05(syst).

AB - The centrality dependence of the midrapidity charged particle multiplicity in Au+Au heavy-ion collisions at √SNN=19.6 and 200 GeV is presented. Within a simple model, the fraction of hard (scaling with number of binary collisions) to soft (scaling with number of participant pairs) interactions is consistent with a value of x=0.13±0.01(stat)±0. 05(syst) at both energies. The experimental results at both energies, scaled by inelastic p(p̄)+p collision data, agree within systematic errors. The ratio of the data was found not to depend on centrality over the studied range and yields a simple linear scale factor of R200/19.6=2.03±0. 02(stat) ±0.05(syst).

UR - http://www.scopus.com/inward/record.url?scp=20844446290&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.70.021902

DO - 10.1103/PhysRevC.70.021902

M3 - 期刊論文

AN - SCOPUS:20844446290

SN - 0556-2813

VL - 70

SP - 021902-1-021902-5

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 021902

ER -

Collision geometry scaling of Au+Au pseudorapidity density from √SNN=19.6 to 200 GeV

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Collision geometry scaling of Au+Au pseudorapidity density from √S_NN=19.6 to 200 GeV