# Charged particle distributions and nuclear modification at high rapidities in d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Abstract : The measurements of the centrality dependence of $dN/d\eta$ and transverse momentum spectra from mid- to forward rapidity in d+Au collisions at $\sqrt{s_{_{\rm NN}}} =$ 200 GeV are reported. They provide a sensitive tool for understanding the dynamics of multi-particle production in the high parton-density regime. In particular, we observe strong suppression of the nuclear modification factor $R_{CP}$ at forward rapidities (d-side, $\eta$ = 3.1) and enhancement at backward rapidity ($\eta$ = $-$3.1). An empirical scaling is obtained for multiplicity and $R_{CP}$ when a shift of the center-of-mass in the asymmetric d+Au collisions with respect to the nucleon-nucleon system is applied
Document type :
Preprints, Working Papers, ...

http://hal.in2p3.fr/in2p3-00136085
Contributor : Yvette Heyd <>
Submitted on : Monday, March 12, 2007 - 11:16:21 AM
Last modification on : Tuesday, May 4, 2021 - 11:26:08 AM

### Citation

B.I. Abelev, M.M. Aggarwal, Z. Ahammed, B.D. Anderson, D. Arkhipkin, et al.. Charged particle distributions and nuclear modification at high rapidities in d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. 2007. ⟨in2p3-00136085⟩

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