Antiproton production in 28Si-Nucleus interactions

J. Barrette; R. Bellwied; P. Braun-Munzinger; W. E. Cleland; T. Cormier; G. David; J. Dee; O. Dietzsch; E. Duek; M. Fatyga; D. Fox; S. V. Greene; J. R. Hall; T. K. Hemmick; N. Herrmann; R. W. Hogue; B. Hong; K. Jayananda; D. Kraus; B. Shiva Kumar; R. Lacasse; D. Lissauer; W. J. Llope; T. Ludlam; R. Majka; D. Makowiecki; S. K. Mark; S. McCorkle; J. T. Mitchell; M. Muthuswamy; E. O'Brien; V. Polychronakos; C. Pruneau; F. S. Rotondo; J. Sandweiss; N. C. da Silva; J. Simon-Gillo; J. Slaughter; U. Sonnadara; J. Stachel; H. Takai; E. M. Takagui; T. G. Throwe; L. Waters; C. Winter; K. Wolf; D. Wolfe; C. L. Woody; N. Xu; Y. Zhang; Z. Zhang; C. Zou

doi:10.1016/0375-9474(92)90625-T

Antiproton production in ²⁸Si-Nucleus interactions

J. Barrette
, R. Bellwied
, P. Braun-Munzinger
, W. E. Cleland
, T. Cormier
, G. David
, J. Dee
, O. Dietzsch
, E. Duek
, M. Fatyga
, D. Fox
, S. V. Greene
, J. R. Hall
, T. K. Hemmick
, N. Herrmann
, R. W. Hogue
, B. Hong
, K. Jayananda
, D. Kraus
, B. Shiva Kumar

R. Lacasse, D. Lissauer, W. J. Llope, T. Ludlam, R. Majka, D. Makowiecki, S. K. Mark, S. McCorkle, J. T. Mitchell, M. Muthuswamy, E. O'Brien, V. Polychronakos, C. Pruneau, F. S. Rotondo, J. Sandweiss, N. C. da Silva, J. Simon-Gillo, J. Slaughter, U. Sonnadara, J. Stachel, H. Takai, E. M. Takagui, T. G. Throwe, L. Waters, C. Winter, K. Wolf, D. Wolfe, C. L. Woody, N. Xu, Y. Zhang, Z. Zhang, C. Zou

Physics and Astronomy

Stony Brook University

McGill University
Stony Brook University
University of Pittsburgh
Texas A&M University
Universidade de São Paulo
Brookhaven National Laboratory
Los Alamos National Laboratory
Yale University
University of New Mexico
GSI Helmholtz Centre for Heavy Ion Research
Fermi National Accelerator Laboratory

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

Abstract

We have used the E814 apparatus to make a systematic study of antiproton production in collisions of ²⁸Si ions at 14.6 GeV/c per nucleon with targets of Pb, Cu, and Al. We have measured the antiproton yield per interaction as a function of transverse energy and have found the yield to increase by a factor of ≈ 2 in going from the least to the most central collisions on the Pb target. A simple first-collision picture of antiproton production predicts the yield to increase by a factor of ≈ 11. We suggest that the discrepancy may result from the annihilation of antiprotons within the nuclear medium.

Original language	English
Pages (from-to)	599-602
Number of pages	4
Journal	Nuclear Physics, Section A
Volume	544
Issue number	1-2
DOIs	https://doi.org/10.1016/0375-9474(92)90625-T
State	Published - Jul 20 1992

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10.1016/0375-9474(92)90625-T

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Barrette, J., Bellwied, R., Braun-Munzinger, P., Cleland, W. E., Cormier, T., David, G., Dee, J., Dietzsch, O., Duek, E., Fatyga, M., Fox, D., Greene, S. V., Hall, J. R., Hemmick, T. K., Herrmann, N., Hogue, R. W., Hong, B., Jayananda, K., Kraus, D., ... Zou, C. (1992). Antiproton production in ²⁸Si-Nucleus interactions. Nuclear Physics, Section A, 544(1-2), 599-602. https://doi.org/10.1016/0375-9474(92)90625-T

@article{bca43d7a771e4c32a3fb30c2f4b26cc1,

title = "Antiproton production in 28Si-Nucleus interactions",

abstract = "We have used the E814 apparatus to make a systematic study of antiproton production in collisions of 28Si ions at 14.6 GeV/c per nucleon with targets of Pb, Cu, and Al. We have measured the antiproton yield per interaction as a function of transverse energy and have found the yield to increase by a factor of ≈ 2 in going from the least to the most central collisions on the Pb target. A simple first-collision picture of antiproton production predicts the yield to increase by a factor of ≈ 11. We suggest that the discrepancy may result from the annihilation of antiprotons within the nuclear medium.",

author = "J. Barrette and R. Bellwied and P. Braun-Munzinger and Cleland, \{W. E.\} and T. Cormier and G. David and J. Dee and O. Dietzsch and E. Duek and M. Fatyga and D. Fox and Greene, \{S. V.\} and Hall, \{J. R.\} and Hemmick, \{T. K.\} and N. Herrmann and Hogue, \{R. W.\} and B. Hong and K. Jayananda and D. Kraus and \{Shiva Kumar\}, B. and R. Lacasse and D. Lissauer and Llope, \{W. J.\} and T. Ludlam and R. Majka and D. Makowiecki and Mark, \{S. K.\} and S. McCorkle and Mitchell, \{J. T.\} and M. Muthuswamy and E. O'Brien and V. Polychronakos and C. Pruneau and Rotondo, \{F. S.\} and J. Sandweiss and \{da Silva\}, \{N. C.\} and J. Simon-Gillo and J. Slaughter and U. Sonnadara and J. Stachel and H. Takai and Takagui, \{E. M.\} and Throwe, \{T. G.\} and L. Waters and C. Winter and K. Wolf and D. Wolfe and Woody, \{C. L.\} and N. Xu and Y. Zhang and Z. Zhang and C. Zou",

year = "1992",

month = jul,

day = "20",

doi = "10.1016/0375-9474(92)90625-T",

language = "English",

volume = "544",

pages = "599--602",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

number = "1-2",

}

Barrette, J, Bellwied, R, Braun-Munzinger, P, Cleland, WE, Cormier, T, David, G, Dee, J, Dietzsch, O, Duek, E, Fatyga, M, Fox, D, Greene, SV, Hall, JR, Hemmick, TK, Herrmann, N, Hogue, RW, Hong, B, Jayananda, K, Kraus, D, Shiva Kumar, B, Lacasse, R, Lissauer, D, Llope, WJ, Ludlam, T, Majka, R, Makowiecki, D, Mark, SK, McCorkle, S, Mitchell, JT, Muthuswamy, M, O'Brien, E, Polychronakos, V, Pruneau, C, Rotondo, FS, Sandweiss, J, da Silva, NC, Simon-Gillo, J, Slaughter, J, Sonnadara, U, Stachel, J, Takai, H, Takagui, EM, Throwe, TG, Waters, L, Winter, C, Wolf, K, Wolfe, D, Woody, CL, Xu, N, Zhang, Y, Zhang, Z & Zou, C 1992, 'Antiproton production in ²⁸Si-Nucleus interactions', Nuclear Physics, Section A, vol. 544, no. 1-2, pp. 599-602. https://doi.org/10.1016/0375-9474(92)90625-T

TY - JOUR

T1 - Antiproton production in 28Si-Nucleus interactions

AU - Barrette, J.

AU - Bellwied, R.

AU - Braun-Munzinger, P.

AU - Cleland, W. E.

AU - Cormier, T.

AU - David, G.

AU - Dee, J.

AU - Dietzsch, O.

AU - Duek, E.

AU - Fatyga, M.

AU - Fox, D.

AU - Greene, S. V.

AU - Hall, J. R.

AU - Hemmick, T. K.

AU - Herrmann, N.

AU - Hogue, R. W.

AU - Hong, B.

AU - Jayananda, K.

AU - Kraus, D.

AU - Shiva Kumar, B.

AU - Lacasse, R.

AU - Lissauer, D.

AU - Llope, W. J.

AU - Ludlam, T.

AU - Majka, R.

AU - Makowiecki, D.

AU - Mark, S. K.

AU - McCorkle, S.

AU - Mitchell, J. T.

AU - Muthuswamy, M.

AU - O'Brien, E.

AU - Polychronakos, V.

AU - Pruneau, C.

AU - Rotondo, F. S.

AU - Sandweiss, J.

AU - da Silva, N. C.

AU - Simon-Gillo, J.

AU - Slaughter, J.

AU - Sonnadara, U.

AU - Stachel, J.

AU - Takai, H.

AU - Takagui, E. M.

AU - Throwe, T. G.

AU - Waters, L.

AU - Winter, C.

AU - Wolf, K.

AU - Wolfe, D.

AU - Woody, C. L.

AU - Xu, N.

AU - Zhang, Y.

AU - Zhang, Z.

AU - Zou, C.

PY - 1992/7/20

Y1 - 1992/7/20

N2 - We have used the E814 apparatus to make a systematic study of antiproton production in collisions of 28Si ions at 14.6 GeV/c per nucleon with targets of Pb, Cu, and Al. We have measured the antiproton yield per interaction as a function of transverse energy and have found the yield to increase by a factor of ≈ 2 in going from the least to the most central collisions on the Pb target. A simple first-collision picture of antiproton production predicts the yield to increase by a factor of ≈ 11. We suggest that the discrepancy may result from the annihilation of antiprotons within the nuclear medium.

AB - We have used the E814 apparatus to make a systematic study of antiproton production in collisions of 28Si ions at 14.6 GeV/c per nucleon with targets of Pb, Cu, and Al. We have measured the antiproton yield per interaction as a function of transverse energy and have found the yield to increase by a factor of ≈ 2 in going from the least to the most central collisions on the Pb target. A simple first-collision picture of antiproton production predicts the yield to increase by a factor of ≈ 11. We suggest that the discrepancy may result from the annihilation of antiprotons within the nuclear medium.

UR - https://www.scopus.com/pages/publications/44049124491

U2 - 10.1016/0375-9474(92)90625-T

DO - 10.1016/0375-9474(92)90625-T

M3 - Article

SN - 0375-9474

VL - 544

SP - 599

EP - 602

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 1-2

ER -

Antiproton production in ²⁸Si-Nucleus interactions

Abstract

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