Production of {phi} mesons in central Si+Au collisions at 14.6 A{center_dot}GeV/c

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:10150883

Wang, Yufeng ^[1]

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1. Columbia Univ., New York, NY (United States). Nevis Labs.

The production of {phi} mesons from central Si+Au collisions has been measured by E859 at the BNL-AGS by selecting events with identified K{sup +}K{sup {minus}} pairs. The values for the mass and width of the {phi} obtained from the invariant mass of the kaon pairs are consistent with those of the Particle Data Book. Preliminary results for the invariant 1/2{pi}m{sub T} d{sup 2}n/dm{sub T}dy distribution and dn/dy are presented. The inverse slope parameter for an exponential m{sub T} fit to the m{sub T} spectrum is 171{plus_minus}18 MeV. An analysis of the ratio of the {phi} signal to the combinatoric background in the K{sup +}K{sup {minus}} invariant mass distribution provides a rough estimate of the size of the reaction region, which is found to be consistent with the E859 interferometry measurements.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10150883
• Report Number(s): BNL--60245; CONF-930173--14; ON: DE94011726
• Country of Publication: United States
• Language: English

Related Subjects

662340
662420
663450
663580
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
A = 190-219
GOLD 197 TARGET
HADRON INTERACTIONS
HEAVY-ION-INDUCED REACTIONS AND SCATTERING
KAONS
MASS SPECTRA
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROPERTIES OF MESONS AND MESON RESONANCES
PROTON-PROTON INTERACTIONS
SILICON 28 REACTIONS
STRANGENESS
TRANSVERSE MOMENTUM
VECTOR MESONS