Antiflow of K{sup 0}{sub s} Mesons in 6A GeV Au + Au Collisions

Journal Article · Mon Jul 31 04:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.85.940· OSTI ID:20217247

Chung, P ^[1]; Ajitanand, N N ^[1]; Alexander, J M ^[1]; Anderson, M ^[2]; Best, D ^[3]; Brady, F P ^[2]; Case, T ^[3]; Caskey, W ^[2]; Cebra, D ^[2]; Chance, J L ^[2]

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1. Departments of Chemistry and Physics, SUNY, Stony Brook, New York 11794-3400 (United States)
2. University of California at Davis, Davis, California 95616 (United States)
3. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

We have measured the sideward flow of neutral strange (K{sup 0}{sub s} ) mesons in 6A GeV Au +Au collisions. A prominent antiflow signal is observed for an impact parameter range (b(less-or-similar sign)7 fm ) which spans central and midcentral events. Since the K{sup 0}{sub s} scattering cross section is relatively small in nuclear matter, this observation suggests that the in-medium kaon vector potential plays an important role in high density nuclear matter. (c) 2000 The American Physical Society.

• OSTI ID: 20217247
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 5 Vol. 85; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EXPERIMENTAL DATA
GOLD
HEAVY ION REACTIONS
KAON-NUCLEON INTERACTIONS
KAONS NEUTRAL
NUCLEAR MATTER
STRANGE MESONS