Search for neutral, penetrating, metastable particles produced in the SLAC beam dump
Conference
·
OSTI ID:7050442
A search was made for neutral objects which might be produced by 20 GeV electrons incident on the SLAC beam dump, penetrate the downstream natural shielding, and decay upstream of an electromagnetic shower calorimeter. With about 30 coulombs of electrons dumped, no candidate events were found above an energy of approx. 2 GeV. Preliminary analysis implies the 95% confidence level limit on the product of mass and lifetime of light axion-like bosons decaying primarily into two photons to be greater than 0.8 keV-sec. Preliminary limits on photino parameters are also given.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (USA)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 7050442
- Report Number(s):
- FERMILAB-CONF-84/33-T; CONF-840150-5; ON: DE84012468
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645100* -- High Energy Physics-- Particle Interactions & Properties-Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
AXIONS
BASIC INTERACTIONS
BEAM DUMPS
BOSONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
GOLDSTONE BOSONS
INTERACTIONS
LINEAR ACCELERATORS
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
NATIONAL ORGANIZATIONS
NEUTRAL PARTICLES
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PARTICLES
PHOTOPRODUCTION
POSTULATED PARTICLES
PROPORTIONAL COUNTERS
RADIATION DETECTORS
SHOWER COUNTERS
STANFORD 20-GEV LINAC
STANFORD LINEAR ACCELERATOR CENTER
SUPERSYMMETRY
SYMMETRY
US DOE
US ERDA
US ORGANIZATIONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
AXIONS
BASIC INTERACTIONS
BEAM DUMPS
BOSONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
GOLDSTONE BOSONS
INTERACTIONS
LINEAR ACCELERATORS
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
NATIONAL ORGANIZATIONS
NEUTRAL PARTICLES
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PARTICLES
PHOTOPRODUCTION
POSTULATED PARTICLES
PROPORTIONAL COUNTERS
RADIATION DETECTORS
SHOWER COUNTERS
STANFORD 20-GEV LINAC
STANFORD LINEAR ACCELERATOR CENTER
SUPERSYMMETRY
SYMMETRY
US DOE
US ERDA
US ORGANIZATIONS