Two-photon results from SPEAR

Conference · Sun Feb 01 04:00:00 EST 1981 · AIP Conf. Proc.; (United States)

OSTI ID:6193333

Roussarie, A

I report results obtained by two experiments at SPEAR on the two-photon production of lepton pairs and resonances. Both experiments find agreement of lepton production with QED expectations, and observe an enhancement of the ..pi pi.. mass spectrum in the 1250 MeV/c/sup 2/ region. The Mark II finds this enhancement not consistent with the decay of the f(1270 MeV/c/sup 2/) alone. The ..gamma gamma.. partial width of the eta' has also been measured by the Mark II.

• Research Organization: Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6193333
• Report Number(s): CONF-800724-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 68:1
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
BHABHA SCATTERING
BREMSSTRAHLUNG
CROSS SECTIONS
ELASTIC SCATTERING
ELECTRODYNAMICS
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
LINEAR MOMENTUM
MASSLESS PARTICLES
PAIR PRODUCTION
PARTICLE INTERACTIONS
PHOTONS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RADIATIONS
SCATTERING
SPEAR
STORAGE RINGS
TOTAL CROSS SECTIONS
TRANSVERSE MOMENTUM