Observations on dA scattering at forward rapidities

V. Guzey; M. Strikman; W. Vogelsang

doi:10.1016/j.physletb.2004.10.033

Observations on dA scattering at forward rapidities

V. Guzey
, M. Strikman
, W. Vogelsang

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

89 Scopus citations

Abstract

We point out that the suppression in the ratio R _dAu recently observed by the BRAHMS Collaboration in forward scattering is stronger than usually appreciated. This is related to the fact that at forward rapidities BRAHMS measures negatively charged hadrons and that R _dAu is defined from the ratio of dA and pp scattering cross sections. We also investigate the influence of standard shadowing on R _dAu, and the typical values of partonic momentum fractions relevant in forward scattering. We find that x _Au≥0.02 dominate in the cross section.

Original language	English (US)
Pages (from-to)	173-183
Number of pages	11
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	603
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2004.10.033
State	Published - Dec 9 2004

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2004.10.033

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title = "Observations on dA scattering at forward rapidities",

abstract = "We point out that the suppression in the ratio R dAu recently observed by the BRAHMS Collaboration in forward scattering is stronger than usually appreciated. This is related to the fact that at forward rapidities BRAHMS measures negatively charged hadrons and that R dAu is defined from the ratio of dA and pp scattering cross sections. We also investigate the influence of standard shadowing on R dAu, and the typical values of partonic momentum fractions relevant in forward scattering. We find that x Au≥0.02 dominate in the cross section.",

author = "V. Guzey and M. Strikman and W. Vogelsang",

note = "Funding Information: We are grateful to D. de Florian, B. J{\"a}ger, and M. Stratmann for valuable help, and to L. Frankfurt, D. Kharzeev, S. Kretzer, K. Tuchin, and R. Venugopalan for useful discussions and comments. V.G. is supported by Sofia Kovalevskaya Program of the Alexander von Humboldt Foundation. M.S.'s research was supported by the DOE grant No. DE-FG02-93ER40771. W.V. is grateful to RIKEN, Brookhaven National Laboratory and the US Department of Energy (contract number DE-AC02-98CH10886) for providing the facilities essential for the completion of this work.",

year = "2004",

month = dec,

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doi = "10.1016/j.physletb.2004.10.033",

language = "English (US)",

volume = "603",

pages = "173--183",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

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TY - JOUR

T1 - Observations on dA scattering at forward rapidities

AU - Guzey, V.

AU - Strikman, M.

AU - Vogelsang, W.

N1 - Funding Information: We are grateful to D. de Florian, B. Jäger, and M. Stratmann for valuable help, and to L. Frankfurt, D. Kharzeev, S. Kretzer, K. Tuchin, and R. Venugopalan for useful discussions and comments. V.G. is supported by Sofia Kovalevskaya Program of the Alexander von Humboldt Foundation. M.S.'s research was supported by the DOE grant No. DE-FG02-93ER40771. W.V. is grateful to RIKEN, Brookhaven National Laboratory and the US Department of Energy (contract number DE-AC02-98CH10886) for providing the facilities essential for the completion of this work.

PY - 2004/12/9

Y1 - 2004/12/9

N2 - We point out that the suppression in the ratio R dAu recently observed by the BRAHMS Collaboration in forward scattering is stronger than usually appreciated. This is related to the fact that at forward rapidities BRAHMS measures negatively charged hadrons and that R dAu is defined from the ratio of dA and pp scattering cross sections. We also investigate the influence of standard shadowing on R dAu, and the typical values of partonic momentum fractions relevant in forward scattering. We find that x Au≥0.02 dominate in the cross section.

AB - We point out that the suppression in the ratio R dAu recently observed by the BRAHMS Collaboration in forward scattering is stronger than usually appreciated. This is related to the fact that at forward rapidities BRAHMS measures negatively charged hadrons and that R dAu is defined from the ratio of dA and pp scattering cross sections. We also investigate the influence of standard shadowing on R dAu, and the typical values of partonic momentum fractions relevant in forward scattering. We find that x Au≥0.02 dominate in the cross section.

UR - https://www.scopus.com/pages/publications/8444228992

UR - https://www.scopus.com/pages/publications/8444228992#tab=citedBy

U2 - 10.1016/j.physletb.2004.10.033

DO - 10.1016/j.physletb.2004.10.033

M3 - Article

AN - SCOPUS:8444228992

SN - 0370-2693

VL - 603

SP - 173

EP - 183

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 - 3-4

ER -

Observations on dA scattering at forward rapidities

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