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. 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

    Research output: Contribution to journalArticle

    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.

    Original languageEnglish (US)
    Pages (from-to)267-271
    Number of pages5
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume677
    Issue number5
    DOIs
    StatePublished - Jun 29 2009

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    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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    Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(sN N) = 62.4 GeV. / 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.; Katrynska, N.; Kim, E. J.; Larsen, T. M.; Lee, J. H.; Løvhøiden, G.; Majka, Z.; Murray, M. J.; Natowitz, J.; Nielsen, B. S.; Nygaard, C.; Pal, D.; Qviller, A.; Rami, F.; Ristea, C.; Ristea, O.; Röhrich, D.; Sanders, S. J.; Staszel, P.; Tveter, T. S.; Videbæk, F.; Wada, R.; Yang, H.; Yin, Z.; Zgura, I. S.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 677, No. 5, 29.06.2009, p. 267-271.

    Research output: Contribution to journalArticle

    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(sN 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
    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. ; Katrynska, N. ; Kim, E. J. ; Larsen, T. M. ; Lee, J. H. ; Løvhøiden, G. ; Majka, Z. ; Murray, M. J. ; Natowitz, J. ; Nielsen, B. S. ; Nygaard, C. ; Pal, D. ; Qviller, A. ; Rami, F. ; Ristea, C. ; Ristea, O. ; Röhrich, D. ; Sanders, S. J. ; Staszel, P. ; Tveter, T. S. ; Videbæk, F. ; Wada, R. ; Yang, H. ; Yin, Z. ; Zgura, I. S. / Nuclear stopping and rapidity loss in Au + Au collisions at sqrt(sN N) = 62.4 GeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2009 ; Vol. 677, No. 5. pp. 267-271.
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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(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.",
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    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.

    PY - 2009/6/29

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    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.

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