### 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) |
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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 | |

State | Published - Dec 9 2004 |

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### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

### Cite this

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*,

*603*(3-4), 173-183. https://doi.org/10.1016/j.physletb.2004.10.033

}

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*, vol. 603, no. 3-4, pp. 173-183. https://doi.org/10.1016/j.physletb.2004.10.033

**Observations on dA scattering at forward rapidities.** / Guzey, V.; Strikman, M.; Vogelsang, W.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Observations on dA scattering at forward rapidities

AU - Guzey, V.

AU - Strikman, M.

AU - Vogelsang, W.

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 - http://www.scopus.com/inward/record.url?scp=8444228992&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=8444228992&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2004.10.033

DO - 10.1016/j.physletb.2004.10.033

M3 - Article

AN - SCOPUS:8444228992

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

SN - 0370-2693

IS - 3-4

ER -