Forward {lambda} production and nuclear stopping power in d+Au collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Sat Dec 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.064904· OSTI ID:21067994

Abelev, B I; Barannikova, O; Betts, R R; Callner, J; Garcia-Solis, E; Hofman, D J; Hollis, R S; Iordanova, A; Suarez, M C ^[1]; Aggarwal, M M; Bhati, A K; Kumar, A; Pruthi, N K; Sharma, M ^[2]; Ahammed, Z; Chattopadhyay, S; Das, D; Mazumdar, M R. Dutta; Ganti, M S; Ghosh, P ^[3]

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1. University of Illinois at Chicago, Chicago, Illinois 60607 (United States)
2. Panjab University, Chandigarh 160014 (India)
3. Variable Energy Cyclotron Centre, Kolkata 700064 (India)

We report the measurement of {lambda} and {lambda} yields and inverse slope parameters in d+Au collisions at {radical}(s{sub NN})=200 GeV at forward and backward rapidities (y={+-}2.75), using data from the STAR forward time projection chambers. The contributions of different processes to baryon transport and particle production are probed exploiting the inherent asymmetry of the d+Au system. Comparisons to model calculations show that baryon transport on the deuteron side is consistent with multiple collisions of the deuteron nucleons with gold participants. On the gold side, HIJING-based models without a hadronic rescattering phase do not describe the measured particle yields, while models that include target remnants or hadronic rescattering do. The multichain model can provide a good description of the net baryon density in d+Au collisions at energies currently available at the BNL Relativistic Heavy Ion Collider, and the derived parameters of the model agree with those from nuclear collisions at lower energies.

• OSTI ID: 21067994
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 76, Issue 6; Other Information: DOI: 10.1103/PhysRevC.76.064904; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). STAR Collaboration; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
BROOKHAVEN RHIC
COMPARATIVE EVALUATIONS
DENSITY
DEUTERON REACTIONS
DEUTERONS
GEV RANGE
GOLD 197 TARGET
MULTIPARTICLE SPECTROMETERS
NUCLEAR REACTION YIELD
NUCLEONS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PARTICLE RAPIDITY
RESCATTERING
STOPPING POWER
TIME PROJECTION CHAMBERS