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Title

Pseudorapidity dependence of charged hadron transverse momentum spectra in d+Au collisions at sqrt[SNN]=200 GeV

Author(s)

Back, B. B.;  Baker, M. D.;  Ballintijn, M.;  Barton, D. S.;  Becker, B.;  Betts, R. R.;  Bickley, A. A.;  Bindel, R.;  Busza, W.;  Carroll, A.;  Decowski, M. P.;  Garcia, E.;  Gburek, T.;  George, N.;  Gulbrandsen, K.;  Gushue, S.;  Halliwell, C.;  Hamblen, J.;  Harrington, A. S.;  Henderson, C.;  Hofman, D. J.;  Hollis, R. S.;  Holynski, R.;  Holzman, B.;  Iordanova, A.;  Johnson, E.;  Kane, J. L.;  Khan, N.;  Kulinich, P.;  Kuo, C. M.;  Lee, J. W.;  Lin, W. T.;  Manly, S.;  Mignerey, A. C.;  Nouicer, R.;  Olszewski, A.;  Pak, R.;  Park, I. C.;  Pernegger, H.;  Reed, C.;  Roland, C.;  Roland, G.;  Sagerer, J.;  Sarin, P.;  Sedykh, I.;  Skulski, W.;  Smith, C. E.;  Steinberg, P.;  Stephans, G. S. F.;  Sukhanov, A.;  Tonjes, M. B.;  Trzupek, A.;  Vale, C.;  Van Nieuwenhuizen, G. J.;  Verdier, R.;  Veres, G. I.;  Wolfs, F. L. H.;  Wosiek, B.;  Wozniak, K.;  Wyslouch, B.;  Zhang, J.

Abstract

We have measured the transverse momentum distributions of charged hadrons in d+Au collisions at sqrt sNN = 200 GeV in the range of 0.5 < p_T < 4.0 GeV/c. The total range of pseudorapidity, eta, is 0.2 < eta < 1.4, where positive eta is in the deuteron direction. The data has been divided into three regions of pseudorapidity, covering 0.2 < eta < 0.6, 0.6 < \eta < 1.0, and 1.0 < eta < 1.4 and has been compared to charged hadron spectra from p+pbar collisions at the same energy. There is a significant change in the spectral shape as a function of pseudorapidity. As eta increases we see a decrease in the nuclear modification factor RdAu.

Publication type

Journal article

Source

Physical Review C, Vol. 70, no. 6 (2004), Article no. 061901

Publication year

2004

FOR Code(s)

0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics

Keyword(s)

Charged hadrons;  d+Au collisions;  PHOBOS;  Pseudorapidity

Publisher

American Physical Society

ISSN

0556-2813

Publisher URL

http://dx.doi.org/10.1103/PhysRevC.70.061901

Copyright

Copyright © 2004 American Physical Society. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher.

Full text

Peer reviewed