{phi}-meson production and the in-medium {phi}-width in proton-nucleus collisions

Journal Article · Mon Dec 27 23:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3542003· OSTI ID:21511387

Hartmann, M ^[1]; Kiselev, Yu T ^[2]; Paryev, E Ya ^[3]; Polyanskiy, A ^[1]; Schadet, H ^[4]; Wilkin, C ^[5]

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1. Institut fuer Kernphysik and Juelich Centre for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany)
2. Institute for Theoretical and Experimental Physics, RU-117218 Moscow (Russian Federation)
3. Institute for Nuclear Research, Russian Academy of Sciences, RU-117312 Moscow (Russian Federation)
4. Forschungszentrum Dresden Rossendorf, D-01314 Dresden (Germany)
5. Physics and Astronomy Department, UCL, London WC1E 6BT (United Kingdom)

The production of {phi}-mesons in collisions of 2.83 GeV protons with C, Cu, Al, and Au targets has been measured with the ANKE magnetic spectrometer at the Cooler Synchrotron COSY. The {phi}-mesons were detected at small angles via their K{sup +}K{sup -} decay. The measured target mass dependence of the production cross section can be related to the in-medium {phi} width. First comparisons with model calculations suggest a significant broadening of the {phi}-width relative to its vacuum value of 4.3 MeV/c{sup 2}.

• OSTI ID: 21511387
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1322; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALUMINIUM
ATOM COLLISIONS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CARBON
CHARGED-PARTICLE REACTIONS
COLLISIONS
COMPARATIVE EVALUATIONS
COPPER
COSY STORAGE RING
CROSS SECTIONS
CYCLIC ACCELERATORS
DECAY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EVALUATION
FERMIONS
GEV RANGE
GEV RANGE 01-10
GOLD
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HEAT EXCHANGERS
INTERACTIONS
ION COLLISIONS
ION-ATOM COLLISIONS
KAONS
KAONS MINUS
KAONS PLUS
MAGNETIC SPECTROMETERS
MASS
MEASURING INSTRUMENTS
MESONS
METALS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHI MESONS
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTONS
PSEUDOSCALAR MESONS
SPECTROMETERS
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
SYNCHROTRONS
TRANSITION ELEMENTS