Azimuthal correlation and collective behavior in nucleus-nucleus collisions

Journal Article · Sun Mar 15 04:00:00 EDT 2015 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778815020210· OSTI ID:22472346

Mali, P.; Sarkar, S. ^[1]; Singh, G. ^[2]

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1. University of North Bengal, Department of Physics (India)
2. SUNY at Fredonia, Department of Computer and Information Science (United States)

Various flow effects of nuclear and hadronic origin are investigated in nucleus-nucleus collisions. Nuclear emulsion data collected from {sup 84}Kr + Ag/Br interaction at an incident energy of 1.52 GeV per nucleon and from {sup 28}Si + Ag/Br interaction at an incident energy of 14.5 GeV per nucleon are used in the investigation. The transverse momentum distribution and the flow angle analysis show that collective behavior, like a bounce-off effect of the projectile spectators and a sidesplash effect of the target spectators, are present in our event samples. From an azimuthal angle analysis of the data we also see a direct flow of the projectile fragments and of the produced charged particles. On the other hand, for both data samples the target fragments exhibit a reverse flow, while the projectile fragments exhibit an elliptic flow. Relevant flow parameters are measured.

• OSTI ID: 22472346
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 78; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BROMINE
CHARGED PARTICLES
CORRELATIONS
GEV RANGE
KRYPTON 84 REACTIONS
NUCLEAR EMULSIONS
NUCLEAR FRAGMENTATION
SILICON 28
SILICON 28 REACTIONS
SILVER
TRANSVERSE MOMENTUM