We present central-to-peripheral nuclear modification factors, R-CP, for the (PT) distributions of K-S(0), Lambda, Lambda, and negatively charged particles, measured at central rapidity in Pb-Pb collisions at top SPS energy. The data cover the 55% most central fraction of the inelastic cross section. The K-S(0) and Lambda R-CP((PT)) are similar in shape to those measured at root sNN = 200 GeV at RHIC, though they are larger in absolute value. We have compared our K-S(0) R-CP data to a theoretical calculation. The prediction overestimates the data at (PT) approximate to 3-4 GeV/c, unless sizeable parton energy loss is included in the calculation. (c) 2005 Elsevier B.V. All rights reserved.

Central-to-peripheral nuclear modification factors in Pb-Pb collisions at root(NN)-N-S=17.3 GeV / F., A., P. A., B., A., B., R., B., A., B., I. J., B., M., B., Bruno, G.e., S. A., B., R., C., M., C., W., C., N., C., R. F., C., A., D., D., D.B., S., D.L., R., D., D., E., D., E., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 623:(2005), pp. 17-25. [10.1016/j.physletb.2005.07.040]

Central-to-peripheral nuclear modification factors in Pb-Pb collisions at root(NN)-N-S=17.3 GeV

MEDDI, Franco;
2005

Abstract

We present central-to-peripheral nuclear modification factors, R-CP, for the (PT) distributions of K-S(0), Lambda, Lambda, and negatively charged particles, measured at central rapidity in Pb-Pb collisions at top SPS energy. The data cover the 55% most central fraction of the inelastic cross section. The K-S(0) and Lambda R-CP((PT)) are similar in shape to those measured at root sNN = 200 GeV at RHIC, though they are larger in absolute value. We have compared our K-S(0) R-CP data to a theoretical calculation. The prediction overestimates the data at (PT) approximate to 3-4 GeV/c, unless sizeable parton energy loss is included in the calculation. (c) 2005 Elsevier B.V. All rights reserved.
2005
nucleus-nucleus collisions; strange particles
01 Pubblicazione su rivista::01a Articolo in rivista
Central-to-peripheral nuclear modification factors in Pb-Pb collisions at root(NN)-N-S=17.3 GeV / F., A., P. A., B., A., B., R., B., A., B., I. J., B., M., B., Bruno, G.e., S. A., B., R., C., M., C., W., C., N., C., R. F., C., A., D., D., D.B., S., D.L., R., D., D., E., D., E., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 623:(2005), pp. 17-25. [10.1016/j.physletb.2005.07.040]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/92094
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