Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV

I. Arsene; I. G. Bearden; D. Beavis; C. Besliu; B. Budick; H. Bøggild; C. Chasman; C. H. Christensen; P. Christiansen; R. Debbe; E. Enger; J. J. Gaardhøje; M. Germinario; K. Hagel; A. Holm; H. Ito; A. Jipa; F. Jundt; J. I. Jørdre; C. E. Jørgensen; R. Karabowicz; E. J. Kim; T. Kozik; T. M. Larsen; J. H. Lee; Y. K. Lee; S. Lindal; G. Lystad; G. Løvhøiden; Z. Majka; A. Makeev; M. Mikelsen; M. Murray; J. Natowitz; B. S. Nielsen; D. Ouerdane; R. Płaneta; F. Rami; C. Ristea; O. Ristea; D. Röhrich; B. H. Samset; D. Sandberg; S. J. Sanders; P. Staszel; T. S. Tveter; F. Videbæk; R. Wada; H. Yang; Z. Yin; I. S. Zgura

doi:10.1016/j.physletb.2007.05.017

Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV

I. Arsene, I. G. Bearden, D. Beavis, C. Besliu, B. Budick, H. Bøggild, C. Chasman, C. H. Christensen, P. Christiansen, R. Debbe, E. Enger, J. J. Gaardhøje, M. Germinario, K. Hagel, A. Holm, H. Ito, A. Jipa, F. Jundt, J. I. Jørdre, C. E. JørgensenR. Karabowicz, E. J. Kim, T. Kozik, T. M. Larsen, J. H. Lee, Y. K. Lee, S. Lindal, G. Lystad, G. Løvhøiden, Z. Majka, A. Makeev, M. Mikelsen, M. Murray, J. Natowitz, B. S. Nielsen, D. Ouerdane, R. Płaneta, F. Rami, C. Ristea, O. Ristea, D. Röhrich, B. H. Samset, D. Sandberg, S. J. Sanders, P. Staszel, T. S. Tveter, F. Videbæk, R. Wada, H. Yang, Z. Yin, I. S. Zgura

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

Abstract

We present spectra of charged pions and protons in 0-10% central Au + Au collisions at sqrt(s_{N N}) = 200 GeV at mid-rapidity (y = 0) and forward pseudorapidity (η = 2.2) measured with the BRAHMS experiment at RHIC. The spectra are compared to spectra from p + p collisions at the same energy scaled by the number of binary collisions. The resulting nuclear modification factors for central Au + Au collisions at both y = 0 and η = 2.2 exhibit suppression for charged pions but not for (anti-) protons at intermediate p_T. The over(p, ̄) / π^- ratios have been measured up to p_T ∼ 3 GeV / c at the two rapidities and the results indicate that a significant fraction of the charged hadrons produced at intermediate p_T range are (anti-) protons at both mid-rapidity and η = 2.2.

Original language	English (US)
Pages (from-to)	219-223
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	650
Issue number	4
DOIs	https://doi.org/10.1016/j.physletb.2007.05.017
State	Published - Jul 5 2007

Keywords

Nuclear modification factor
Particle production

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2007.05.017

Cite this

Arsene, I., Bearden, I. G., Beavis, D., Besliu, C., Budick, B., Bøggild, H., Chasman, C., Christensen, C. H., Christiansen, P., Debbe, R., Enger, E., Gaardhøje, J. J., Germinario, M., Hagel, K., Holm, A., Ito, H., Jipa, A., Jundt, F., Jørdre, J. I., ... Zgura, I. S. (2007). Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 650(4), 219-223. https://doi.org/10.1016/j.physletb.2007.05.017

Arsene, I, Bearden, IG, Beavis, D, Besliu, C, Budick, B, Bøggild, H, Chasman, C, Christensen, CH, Christiansen, P, Debbe, R, Enger, E, Gaardhøje, JJ, Germinario, M, Hagel, K, Holm, A, Ito, H, Jipa, A, Jundt, F, Jørdre, JI, Jørgensen, CE, Karabowicz, R, Kim, EJ, Kozik, T, Larsen, TM, Lee, JH, Lee, YK, Lindal, S, Lystad, G, Løvhøiden, G, Majka, Z, Makeev, A, Mikelsen, M, Murray, M, Natowitz, J, Nielsen, BS, Ouerdane, D, Płaneta, R, Rami, F, Ristea, C, Ristea, O, Röhrich, D, Samset, BH, Sandberg, D, Sanders, SJ, Staszel, P, Tveter, TS, Videbæk, F, Wada, R, Yang, H, Yin, Z & Zgura, IS 2007, 'Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 650, no. 4, pp. 219-223. https://doi.org/10.1016/j.physletb.2007.05.017

@article{8a006c1942e841c4a8cc1e369cc3ace6,

title = "Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV",

abstract = "We present spectra of charged pions and protons in 0-10% central Au + Au collisions at sqrt(sN N) = 200 GeV at mid-rapidity (y = 0) and forward pseudorapidity (η = 2.2) measured with the BRAHMS experiment at RHIC. The spectra are compared to spectra from p + p collisions at the same energy scaled by the number of binary collisions. The resulting nuclear modification factors for central Au + Au collisions at both y = 0 and η = 2.2 exhibit suppression for charged pions but not for (anti-) protons at intermediate pT. The over(p,{\= }) / π- ratios have been measured up to pT ∼ 3 GeV / c at the two rapidities and the results indicate that a significant fraction of the charged hadrons produced at intermediate pT range are (anti-) protons at both mid-rapidity and η = 2.2.",

keywords = "Nuclear modification factor, Particle production",

author = "I. Arsene and Bearden, {I. G.} and D. Beavis and C. Besliu and B. Budick and H. B{\o}ggild and C. Chasman and Christensen, {C. H.} and P. Christiansen and R. Debbe and E. Enger and Gaardh{\o}je, {J. J.} and M. Germinario and K. Hagel and A. Holm and H. Ito and A. Jipa and F. Jundt and J{\o}rdre, {J. I.} and J{\o}rgensen, {C. E.} and R. Karabowicz and Kim, {E. J.} and T. Kozik and Larsen, {T. M.} and Lee, {J. H.} and Lee, {Y. K.} and S. Lindal and G. Lystad and G. L{\o}vh{\o}iden and Z. Majka and A. Makeev and M. Mikelsen and M. Murray and J. Natowitz and Nielsen, {B. S.} and D. Ouerdane and R. P{\l}aneta and F. Rami and C. Ristea and O. Ristea and D. R{\"o}hrich and Samset, {B. H.} and D. Sandberg and Sanders, {S. J.} and P. Staszel and Tveter, {T. S.} and F. Videb{\ae}k and R. Wada and H. Yang and Z. Yin and Zgura, {I. S.}",

note = "Funding Information: This work was supported by the Division of Nuclear Physics of the Office of Science of the US DOE under contract DE-AC02-98-CG10886, the Danish Natural Science Research Council, the Research Council of Norway, the Polish State Commission for Scientific Research and the Romanian Ministry of Research.",

year = "2007",

month = jul,

day = "5",

doi = "10.1016/j.physletb.2007.05.017",

language = "English (US)",

volume = "650",

pages = "219--223",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV

AU - Arsene, I.

AU - Bearden, I. G.

AU - Beavis, D.

AU - Besliu, C.

AU - Budick, B.

AU - Bøggild, H.

AU - Chasman, C.

AU - Christensen, C. H.

AU - Christiansen, P.

AU - Debbe, R.

AU - Enger, E.

AU - Gaardhøje, J. J.

AU - Germinario, M.

AU - Hagel, K.

AU - Holm, A.

AU - Ito, H.

AU - Jipa, A.

AU - Jundt, F.

AU - Jørdre, J. I.

AU - Jørgensen, C. E.

AU - Karabowicz, R.

AU - Kim, E. J.

AU - Kozik, T.

AU - Larsen, T. M.

AU - Lee, J. H.

AU - Lee, Y. K.

AU - Lindal, S.

AU - Lystad, G.

AU - Løvhøiden, G.

AU - Majka, Z.

AU - Makeev, A.

AU - Mikelsen, M.

AU - Murray, M.

AU - Natowitz, J.

AU - Nielsen, B. S.

AU - Ouerdane, D.

AU - Płaneta, R.

AU - Rami, F.

AU - Ristea, C.

AU - Ristea, O.

AU - Röhrich, D.

AU - Samset, B. H.

AU - Sandberg, D.

AU - Sanders, S. J.

AU - Staszel, P.

AU - Tveter, T. S.

AU - Videbæk, F.

AU - Wada, R.

AU - Yang, H.

AU - Yin, Z.

AU - Zgura, I. S.

N1 - Funding Information: This work was supported by the Division of Nuclear Physics of the Office of Science of the US DOE under contract DE-AC02-98-CG10886, the Danish Natural Science Research Council, the Research Council of Norway, the Polish State Commission for Scientific Research and the Romanian Ministry of Research.

PY - 2007/7/5

Y1 - 2007/7/5

N2 - We present spectra of charged pions and protons in 0-10% central Au + Au collisions at sqrt(sN N) = 200 GeV at mid-rapidity (y = 0) and forward pseudorapidity (η = 2.2) measured with the BRAHMS experiment at RHIC. The spectra are compared to spectra from p + p collisions at the same energy scaled by the number of binary collisions. The resulting nuclear modification factors for central Au + Au collisions at both y = 0 and η = 2.2 exhibit suppression for charged pions but not for (anti-) protons at intermediate pT. The over(p, ̄) / π- ratios have been measured up to pT ∼ 3 GeV / c at the two rapidities and the results indicate that a significant fraction of the charged hadrons produced at intermediate pT range are (anti-) protons at both mid-rapidity and η = 2.2.

AB - We present spectra of charged pions and protons in 0-10% central Au + Au collisions at sqrt(sN N) = 200 GeV at mid-rapidity (y = 0) and forward pseudorapidity (η = 2.2) measured with the BRAHMS experiment at RHIC. The spectra are compared to spectra from p + p collisions at the same energy scaled by the number of binary collisions. The resulting nuclear modification factors for central Au + Au collisions at both y = 0 and η = 2.2 exhibit suppression for charged pions but not for (anti-) protons at intermediate pT. The over(p, ̄) / π- ratios have been measured up to pT ∼ 3 GeV / c at the two rapidities and the results indicate that a significant fraction of the charged hadrons produced at intermediate pT range are (anti-) protons at both mid-rapidity and η = 2.2.

KW - Nuclear modification factor

KW - Particle production

UR - http://www.scopus.com/inward/record.url?scp=34250697167&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250697167&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2007.05.017

DO - 10.1016/j.physletb.2007.05.017

M3 - Article

AN - SCOPUS:34250697167

SN - 0370-2693

VL - 650

SP - 219

EP - 223

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -

Nuclear modification factor for charged pions and protons at forward rapidity in central Au + Au collisions at 200 GeV

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this