Rapidity dependence of deuteron production in central Au+Au collisions at √sNN=200 GeV

I. 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. 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; S. Zgura

doi:10.1103/PhysRevC.83.044906

Rapidity dependence of deuteron production in central Au+Au collisions at √s_NN=200 GeV

I. 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. 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, S. Zgura

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Abstract

We have measured the distributions of protons and deuterons produced in the 20% most central Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) (√sNN=200 GeV) over a very wide range of transverse and longitudinal momentum. Near midrapidity we have also measured the distribution of antiprotons and antideuterons. We present our results in the context of coalescence models. In particular, we extract the "homogeneity volume" and the average phase-space density for protons and antiprotons. Near central rapidity the coalescence parameter B₂(p_T) and the space-averaged phase-space density (p_T) are very similar for both protons and antiprotons. For protons we see little variation of either B₂(p _T) or the space-averaged phase-space density as the rapidity increases from 0 to 3. However, these quantities depend strongly on p _T at all rapidities. These results are in contrast to data from lower-energy collisions where the proton and antiproton phase-space densities are different at y=0, and both B₂ and depend strongly on rapidity.

Original language	English (US)
Article number	044906
Journal	Physical Review C - Nuclear Physics
Volume	83
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.83.044906
State	Published - Apr 18 2011

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.83.044906

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Arsene, I., 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, S. (2011). Rapidity dependence of deuteron production in central Au+Au collisions at √s_NN=200 GeV. Physical Review C - Nuclear Physics, 83(4), Article 044906. https://doi.org/10.1103/PhysRevC.83.044906

Arsene, I, 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, M, 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, S 2011, 'Rapidity dependence of deuteron production in central Au+Au collisions at √s_NN=200 GeV', Physical Review C - Nuclear Physics, vol. 83, no. 4, 044906. https://doi.org/10.1103/PhysRevC.83.044906

@article{85c07a6cdb214210a909c62a4f913cd6,

title = "Rapidity dependence of deuteron production in central Au+Au collisions at √sNN=200 GeV",

abstract = "We have measured the distributions of protons and deuterons produced in the 20% most central Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) (√sNN=200 GeV) over a very wide range of transverse and longitudinal momentum. Near midrapidity we have also measured the distribution of antiprotons and antideuterons. We present our results in the context of coalescence models. In particular, we extract the {"}homogeneity volume{"} and the average phase-space density for protons and antiprotons. Near central rapidity the coalescence parameter B2(pT) and the space-averaged phase-space density (pT) are very similar for both protons and antiprotons. For protons we see little variation of either B2(p T) or the space-averaged phase-space density as the rapidity increases from 0 to 3. However, these quantities depend strongly on p T at all rapidities. These results are in contrast to data from lower-energy collisions where the proton and antiproton phase-space densities are different at y=0, and both B2 and depend strongly on rapidity.",

author = "I. Arsene 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 M. Murray 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 S. Zgura",

year = "2011",

month = apr,

day = "18",

doi = "10.1103/PhysRevC.83.044906",

language = "English (US)",

volume = "83",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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TY - JOUR

T1 - Rapidity dependence of deuteron production in central Au+Au collisions at √sNN=200 GeV

AU - Arsene, I.

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.

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, S.

PY - 2011/4/18

Y1 - 2011/4/18

N2 - We have measured the distributions of protons and deuterons produced in the 20% most central Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) (√sNN=200 GeV) over a very wide range of transverse and longitudinal momentum. Near midrapidity we have also measured the distribution of antiprotons and antideuterons. We present our results in the context of coalescence models. In particular, we extract the "homogeneity volume" and the average phase-space density for protons and antiprotons. Near central rapidity the coalescence parameter B2(pT) and the space-averaged phase-space density (pT) are very similar for both protons and antiprotons. For protons we see little variation of either B2(p T) or the space-averaged phase-space density as the rapidity increases from 0 to 3. However, these quantities depend strongly on p T at all rapidities. These results are in contrast to data from lower-energy collisions where the proton and antiproton phase-space densities are different at y=0, and both B2 and depend strongly on rapidity.

AB - We have measured the distributions of protons and deuterons produced in the 20% most central Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) (√sNN=200 GeV) over a very wide range of transverse and longitudinal momentum. Near midrapidity we have also measured the distribution of antiprotons and antideuterons. We present our results in the context of coalescence models. In particular, we extract the "homogeneity volume" and the average phase-space density for protons and antiprotons. Near central rapidity the coalescence parameter B2(pT) and the space-averaged phase-space density (pT) are very similar for both protons and antiprotons. For protons we see little variation of either B2(p T) or the space-averaged phase-space density as the rapidity increases from 0 to 3. However, these quantities depend strongly on p T at all rapidities. These results are in contrast to data from lower-energy collisions where the proton and antiproton phase-space densities are different at y=0, and both B2 and depend strongly on rapidity.

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UR - http://www.scopus.com/inward/citedby.url?scp=79960930882&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.83.044906

DO - 10.1103/PhysRevC.83.044906

M3 - Article

AN - SCOPUS:79960930882

SN - 0556-2813

VL - 83

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044906

ER -

Rapidity dependence of deuteron production in central Au+Au collisions at √s_NN=200 GeV

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