Strange quark suppression and strange hadron production in pp collisions at energies available at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.034905· OSTI ID:21596774

Haiyan, Long; Shengqin, Feng; Daimei, Zhou; Yuliang, Yan; Hailiang, Ma; Benhao, Sa ^[1]

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1. Department of Physics, College of Science, China Three Gorges University, Yichang 443002 (China)

The parton and hadron cascade model PACIAE based on PYTHIA is utilized to systematically investigate strange particle production in pp collisions at energies available at the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC). Globally speaking, the PACIAE results of the strange particle rapidity density at midrapidity and the transverse momentum distribution are better than those of PYTHIA (default) in comparison with STAR and ALICE experimental data. This may represent the importance of the parton and hadron rescatterings, as well as the reduction mechanism of strange quark suppression, added in the PACIAE model. The K/{pi} ratios as a function of reaction energy in pp collisions from CERN Super Proton Synchrotron (SPS) to LHC energies are also analyzed in this paper.

• OSTI ID: 21596774
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 84, Issue 3; Other Information: DOI: 10.1103/PhysRevC.84.034905; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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BNL
BROOKHAVEN RHIC
CERN LHC
COMPARATIVE EVALUATIONS
DENSITY
DISTRIBUTION
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROTON-PROTON INTERACTIONS
PROTONS
REDUCTION
RESCATTERING
S QUARKS
TRANSVERSE MOMENTUM
ACCELERATORS
BARYON-BARYON INTERACTIONS
BARYONS
CHEMICAL REACTIONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION ACCELERATORS
INTERACTIONS
LINEAR MOMENTUM
MAGNETIC MIRRORS
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NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
OPEN PLASMA DEVICES
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PROTON-NUCLEON INTERACTIONS
QUARKS
SCATTERING
STORAGE RINGS
STRANGE PARTICLES
SYNCHROTRONS
THERMONUCLEAR DEVICES
US AEC
US DOE
US ERDA
US ORGANIZATIONS