Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(sN N) = 62.4 GeV

I. C. Arsene; I. G. Bearden; D. Beavis; S. Bekele; C. Besliu; B. Budick; H. Bøggild; C. Chasman; C. H. Christensen; P. Christiansen; H. H. Dalsgaard; R. Debbe; J. J. Gaardhøje; K. Hagel; H. Ito; A. Jipa; E. B. Johnson; C. E. Jørgensen; R. Karabowicz; N. Katrynska; E. J. Kim; T. M. Larsen; J. H. Lee; G. Løvhøiden; Z. Majka; M. J. Murray; J. Natowitz; B. S. Nielsen; C. Nygaard; D. Pal; A. Qviller; F. Rami; C. Ristea; O. Ristea; D. Röhrich; S. J. Sanders; P. Staszel; T. S. Tveter; F. Videbæk; R. Wada; H. Yang; Z. Yin; I. S. Zgura

doi:10.1016/j.physletb.2009.05.049

Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(s_{N N}) = 62.4 GeV

I. C. Arsene, I. G. Bearden, D. Beavis, S. Bekele, C. Besliu, B. Budick, H. Bøggild, C. Chasman, C. H. Christensen, P. Christiansen, H. H. Dalsgaard, R. Debbe, J. J. Gaardhøje, K. Hagel, H. Ito, A. Jipa, E. B. Johnson, C. E. Jørgensen, R. Karabowicz, N. KatrynskaE. J. Kim, T. M. Larsen, J. H. Lee, G. Løvhøiden, Z. Majka, M. J. Murray, J. Natowitz, B. S. Nielsen, C. Nygaard, D. Pal, A. Qviller, F. Rami, C. Ristea, O. Ristea, D. Röhrich, S. J. Sanders, P. Staszel, T. S. Tveter, F. Videbæk, R. Wada, H. Yang, Z. Yin, I. S. Zgura

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Abstract

Transverse momentum spectra of protons and anti-protons measured in the rapidity range 0 < y < 3.1 from 0-10% central Au + Au collisions at sqrt(s_{N N}) = 62.4 GeV are presented. The rapidity densities, d N / d y, of protons, anti-protons and net-protons (N_p - N_{over(p, ̄)}) have been deduced from the spectra over a rapidity range wide enough to observe the expected maximum net-baryon density. From mid-rapidity to y = 1 the net-proton yield is roughly constant (d N / d y ∼ 10), but rises to d N / d y ∼ 25 at 2.3 < y < 3.1. The mean rapidity loss is 2.01 ± 0.14 ± 0.12 units from beam rapidity. The measured rapidity distributions are compared to model predictions. Systematics of net-baryon distributions and rapidity loss vs. collision energy are discussed.

Original language	English (US)
Pages (from-to)	267-271
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	677
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2009.05.049
State	Published - Jun 29 2009

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2009.05.049

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Arsene, I. C., Bearden, I. G., Beavis, D., Bekele, S., Besliu, C., Budick, B., Bøggild, H., Chasman, C., Christensen, C. H., Christiansen, P., Dalsgaard, H. H., Debbe, R., Gaardhøje, J. J., Hagel, K., Ito, H., Jipa, A., Johnson, E. B., Jørgensen, C. E., Karabowicz, R., ... Zgura, I. S. (2009). Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(s_{N N}) = 62.4 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 677(5), 267-271. https://doi.org/10.1016/j.physletb.2009.05.049

Arsene, IC, Bearden, IG, Beavis, D, Bekele, S, Besliu, C, Budick, B, Bøggild, H, Chasman, C, Christensen, CH, Christiansen, P, Dalsgaard, HH, Debbe, R, Gaardhøje, JJ, Hagel, K, Ito, H, Jipa, A, Johnson, EB, Jørgensen, CE, Karabowicz, R, Katrynska, N, Kim, EJ, Larsen, TM, Lee, JH, Løvhøiden, G, Majka, Z, Murray, MJ, Natowitz, J, Nielsen, BS, Nygaard, C, Pal, D, Qviller, A, Rami, F, Ristea, C, Ristea, O, Röhrich, D, Sanders, SJ, Staszel, P, Tveter, TS, Videbæk, F, Wada, R, Yang, H, Yin, Z & Zgura, IS 2009, 'Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(s_{N N}) = 62.4 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 677, no. 5, pp. 267-271. https://doi.org/10.1016/j.physletb.2009.05.049

@article{98d63242c26f4a9c8429023416a6a9be,

title = "Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(sN N) = 62.4 GeV",

abstract = "Transverse momentum spectra of protons and anti-protons measured in the rapidity range 0 < y < 3.1 from 0-10% central Au + Au collisions at sqrt(sN N) = 62.4 GeV are presented. The rapidity densities, d N / d y, of protons, anti-protons and net-protons (Np - Nover(p,{\= })) have been deduced from the spectra over a rapidity range wide enough to observe the expected maximum net-baryon density. From mid-rapidity to y = 1 the net-proton yield is roughly constant (d N / d y ∼ 10), but rises to d N / d y ∼ 25 at 2.3 < y < 3.1. The mean rapidity loss is 2.01 ± 0.14 ± 0.12 units from beam rapidity. The measured rapidity distributions are compared to model predictions. Systematics of net-baryon distributions and rapidity loss vs. collision energy are discussed.",

author = "Arsene, {I. C.} and Bearden, {I. G.} and D. Beavis and S. Bekele and C. Besliu and B. Budick and H. B{\o}ggild and C. Chasman and Christensen, {C. H.} and P. Christiansen and Dalsgaard, {H. H.} and R. Debbe and Gaardh{\o}je, {J. J.} and K. Hagel and H. Ito and A. Jipa and Johnson, {E. B.} and J{\o}rgensen, {C. E.} and R. Karabowicz and N. Katrynska and Kim, {E. J.} and Larsen, {T. M.} and Lee, {J. H.} and G. L{\o}vh{\o}iden and Z. Majka and Murray, {M. J.} and J. Natowitz and Nielsen, {B. S.} and C. Nygaard and D. Pal and A. Qviller and F. Rami and C. Ristea and O. Ristea and D. R{\"o}hrich 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 Department of Energy under contracts DE-AC02-98-CH10886, DE-FG03-93-ER40773, DE-FG03-96-ER40981, and DE-FG02-99-ER41121, the Danish Natural Science Research Council, the Research Council of Norway, the Polish Ministry of Science and Information Society Technologies (Grant No. 0383/P03/2005/29), and the Romanian Ministry of Education and Research (5003/1999, 6077/2000). We thank the staff of the Collider-Accelerator Division at BNL for their excellent and dedicated work to deploy RHIC and their support to the experiment.",

year = "2009",

month = jun,

day = "29",

doi = "10.1016/j.physletb.2009.05.049",

language = "English (US)",

volume = "677",

pages = "267--271",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "5",

}

TY - JOUR

T1 - Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(sN N) = 62.4 GeV

AU - Arsene, I. C.

AU - Bearden, I. G.

AU - Beavis, D.

AU - Bekele, S.

AU - Besliu, C.

AU - Budick, B.

AU - Bøggild, H.

AU - Chasman, C.

AU - Christensen, C. H.

AU - Christiansen, P.

AU - Dalsgaard, H. H.

AU - Debbe, R.

AU - Gaardhøje, J. J.

AU - Hagel, K.

AU - Ito, H.

AU - Jipa, A.

AU - Johnson, E. B.

AU - Jørgensen, C. E.

AU - Karabowicz, R.

AU - Katrynska, N.

AU - Kim, E. J.

AU - Larsen, T. M.

AU - Lee, J. H.

AU - Løvhøiden, G.

AU - Majka, Z.

AU - Murray, M. J.

AU - Natowitz, J.

AU - Nielsen, B. S.

AU - Nygaard, C.

AU - Pal, D.

AU - Qviller, A.

AU - Rami, F.

AU - Ristea, C.

AU - Ristea, O.

AU - Röhrich, 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 Department of Energy under contracts DE-AC02-98-CH10886, DE-FG03-93-ER40773, DE-FG03-96-ER40981, and DE-FG02-99-ER41121, the Danish Natural Science Research Council, the Research Council of Norway, the Polish Ministry of Science and Information Society Technologies (Grant No. 0383/P03/2005/29), and the Romanian Ministry of Education and Research (5003/1999, 6077/2000). We thank the staff of the Collider-Accelerator Division at BNL for their excellent and dedicated work to deploy RHIC and their support to the experiment.

PY - 2009/6/29

Y1 - 2009/6/29

N2 - Transverse momentum spectra of protons and anti-protons measured in the rapidity range 0 < y < 3.1 from 0-10% central Au + Au collisions at sqrt(sN N) = 62.4 GeV are presented. The rapidity densities, d N / d y, of protons, anti-protons and net-protons (Np - Nover(p, ̄)) have been deduced from the spectra over a rapidity range wide enough to observe the expected maximum net-baryon density. From mid-rapidity to y = 1 the net-proton yield is roughly constant (d N / d y ∼ 10), but rises to d N / d y ∼ 25 at 2.3 < y < 3.1. The mean rapidity loss is 2.01 ± 0.14 ± 0.12 units from beam rapidity. The measured rapidity distributions are compared to model predictions. Systematics of net-baryon distributions and rapidity loss vs. collision energy are discussed.

AB - Transverse momentum spectra of protons and anti-protons measured in the rapidity range 0 < y < 3.1 from 0-10% central Au + Au collisions at sqrt(sN N) = 62.4 GeV are presented. The rapidity densities, d N / d y, of protons, anti-protons and net-protons (Np - Nover(p, ̄)) have been deduced from the spectra over a rapidity range wide enough to observe the expected maximum net-baryon density. From mid-rapidity to y = 1 the net-proton yield is roughly constant (d N / d y ∼ 10), but rises to d N / d y ∼ 25 at 2.3 < y < 3.1. The mean rapidity loss is 2.01 ± 0.14 ± 0.12 units from beam rapidity. The measured rapidity distributions are compared to model predictions. Systematics of net-baryon distributions and rapidity loss vs. collision energy are discussed.

UR - http://www.scopus.com/inward/record.url?scp=67049145347&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67049145347&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2009.05.049

DO - 10.1016/j.physletb.2009.05.049

M3 - Article

AN - SCOPUS:67049145347

SN - 0370-2693

VL - 677

SP - 267

EP - 271

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 - 5

ER -

Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(s_{N N}) = 62.4 GeV

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