Search for resonant states in positron-electron scattering using a positron gas target
- Lawrence Livermore National Lab., CA (USA)
- California Univ., Berkeley, CA (USA). Dept. of Physics
Narrow correlated positron-electron peaks discovered in superheavy nuclear collisions may be signatures for previously undetected neutral particle-like objects having masses of 1--2 MeV/c{sup 2}. We have designed an experiment to definitively test this hypothesis by searching for resonant states formed directly in the scattering of monoenergetic electrons incident on a gas of cold positrons confined magnetically in a Malmberg trap. This technique will provide a hundred-fold improvement in sensitivity to e{sup +}e{sup {minus}} resonances compared to previous positron-beam, thin-foil scattering experiments. Together with a recoil-shadow technique, this experiment will explore a five decade range in neutral-particle lifetimes (10{sup {minus}13}s to 10{sup {minus}8}s) which cannot be probed directly to other methods. 14 refs., 2 figs., 1 tab.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6477438
- Report Number(s):
- UCRL-JC-105379; CONF-901116-31; ON: DE91005062; TRN: 91-000405
- Resource Relation:
- Conference: 11. international conference on the application of accelerators in research and industry, Denton, TX (USA), 5-8 Nov 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTRON-POSITRON INTERACTIONS
RESONANCE SCATTERING
CROSS SECTIONS
ELECTRON BEAMS
HEAVY ION REACTIONS
LEPTONS
TRAPS
BEAMS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
FERMIONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON BEAMS
LEPTON-LEPTON INTERACTIONS
NUCLEAR REACTIONS
PARTICLE BEAMS
PARTICLE INTERACTIONS
SCATTERING
651000* - Nuclear Physics
651100 - Nuclear Physics- Experimental Techniques- (1980-)