Centrality dependence of charged hadron transverse momentum spectra in Au plus Au collisions from √sNN=62.4 to 200 GeV -: art. no. 082304

被引：57

作者：

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

Holynski, R

Holzman, B

Iordanova, A

Johnson, E

Kane, JL

Khan, N

Kulinich, P

Kuo, CM

Lin, WT

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

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] PAN, Inst Phys Nucl, Krakow, Poland

[4] MIT, Cambridge, MA 02139 USA

[5] Natl Cent Univ, Chungli 32054, Taiwan

[6] Univ Illinois, Chicago, IL 60607 USA

[7] Univ Maryland, College Pk, MD 20742 USA

[8] Univ Rochester, Rochester, NY 14627 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.94.082304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured transverse momentum distributions of charged hadrons produced in Au+Au collisions at roots(NN) = 62.4 GeV. The spectra are presented for transverse momenta 0.25<p(T)<4.5 GeV/c, in a pseudorapidity range of 0.2<eta<1.4. The nuclear modification factor R-AA is calculated relative to p+p data at the same collision energy as a function of collision centrality. For 2<p(T)<4.5 GeV/c, R-AA is found to be significantly larger than in Au+Au collisions at roots(NN) = 130 and 200 GeV. In contrast to the large change in R-AA, we observe a very similar centrality evolution of the p(T) spectra at roots(NN) = 62.4 and 200 GeV. The dynamical origin of this surprising factorization of energy and centrality dependence of particle production in heavy-ion collisions remains to be understood.

引用

页数：4

共 50 条

[1] System size and centrality dependence of charged hadron transverse momentum spectra in Au plus Au and Cu plus Cu collisions at √sNN=62.4 and 200 GeV
Alver, B.
Back, B. B.
Baker, M. D.
Ballintijn, M.
Barton, D. S.
Betts, R. R.
Bindel, R.
Busza, W.
Chai, Z.
Chetluru, V.
Garcia, E.
Gburek, T.
Gulbrandsen, K.
Hamblen, J.
Harnarine, I.
Henderson, C.
Hofman, D. J.
Hollis, R. S.
Holynski, R.
Holzman, B.
Iordanova, A.
Kane, J. L.
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.
Richardson, E.
Roland, C.
Roland, G.
Sagerer, J.
Sedykh, I.
Smith, C. E.
Stankiewicz, M. A.
Steinberg, P.
Stephans, G. S. F.
Sukhanov, A.
Szostak, A.
Tonjes, M. B.
Trzupek, A.
van Nieuwenhuizen, G. J.
Vaurynovich, S. S.
Verdier, R.
Veres, G. I.
PHYSICAL REVIEW LETTERS, 2006, 96 (21)
[2] Centrality dependence of charged-hadron transverse-momentum spectra in d+Au collisions at √sNN=200 GeV -: art. no. 072302
Back, BB
Baker, MD
Ballintijn, M
Barton, DS
Becker, B
Betts, RR
Bickley, AA
Bindel, R
Budzanowski, A
Busza, W
Carroll, A
Decowski, MP
García, E
Gburek, T
George, N
Gulbrandsen, K
Gushue, S
Halliwell, C
Hamblen, J
Harrington, AS
Henderson, C
Hofman, DJ
Hollis, RS
Holynski, R
Holzman, B
Iordanova, A
Johnson, E
Kane, JL
Khan, N
Kulinich, P
Kuo, CM
Lee, JW
Lin, WT
Manly, S
Mignerey, AC
Noell, A
Nouicer, R
Olszewski, A
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Park, IC
Pernegger, H
Reed, C
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Sagerer, J
Sarin, P
Sawicki, P
Sedykh, I
Skulski, W
PHYSICAL REVIEW LETTERS, 2003, 91 (07)
[3] Pseudorapidity dependence of charged hadron transverse momentum spectra in d+Au collisions at √sNN=200 GeV -: art. no. 061901
Back, BB
Baker, MD
Ballintijn, M
Barton, DS
Becker, B
Betts, RR
Bickley, AA
Bindel, R
Busza, W
Carroll, A
Decowski, MP
García, E
Gburek, T
George, N
Gulbrandsen, K
Gushue, S
Halliwell, C
Hamblen, J
Harrington, AS
Henderson, C
Hofman, DJ
Hollis, RS
Holynski, R
Holzman, B
Iordanova, A
Johnson, E
Kane, JL
Khan, N
Kulinich, P
Kuo, CM
Lee, JW
Lin, WT
Manly, S
Mignerey, AC
Nouicer, R
Olszewski, A
Pak, R
Park, IC
Pernegger, H
Reed, C
Roland, C
Roland, G
Sagerer, J
Sarin, P
Sedykh, I
Skulski, W
Smith, CE
Steinberg, P
Stephans, GSF
Sukhanov, A
PHYSICAL REVIEW C, 2004, 70 (06): : 061901 - 1
[4] Charged hadron transverse momentum distributions in Au plus Au collisions at √sNN=200 GeV
Back, BB
Baker, MD
Barton, DS
Betts, RR
Ballintijn, M
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
Holynski, R
Holzman, B
Iordanova, A
Johnson, E
Kane, JL
Katzy, J
Khan, N
Kucewicz, W
Kulinich, P
Kuo, CM
Lin, WT
Lee, JW
Manly, S
McLeod, D
Mignerey, AC
Nouicer, R
Olszewski, A
Pak, R
Park, IC
Pernegger, H
Reed, C
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Sagerer, J
Sarin, P
Sawicki, P
PHYSICS LETTERS B, 2004, 578 (3-4) : 297 - 303
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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.
Garcia, E.
Gburek, T.
George, N.
Gulbrandsen, K.
Halliwell, C.
Hamblen, J.
Hauer, M.
Henderson, C.
Hofman, D. J.
Hollis, R. S.
Holynski, R.
Holzman, B.
Iordanova, A.
Johnson, E.
Kane, J. L.
Khan, N.
Kulinich, P.
Kuo, C. M.
Lin, W. T.
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.
PHYSICAL REVIEW C, 2007, 75 (02):
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Carroll, A
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Decowski, MP
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Hauer, M
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PHYSICAL REVIEW C, 2006, 73 (03):
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[8] Rapidity dependence of charged antihadron to hadron ratios in Au plus Au collisions at √SNN=200 GeV -: art. no. 102301
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PHYSICAL REVIEW C, 2005, 72 (04):
[10] Centrality and pseudorapidity dependence of elliptic flow for charged hadrons in Au plus Au collisions at √sNN=200 GeV -: art. no. 051901
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PHYSICAL REVIEW C, 2005, 72 (05):

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