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Measurement of anti n-p annihilation cross sections near threshold

Thesis/Dissertation ·
OSTI ID:6031204
The anti n-p annihilation cross section was measured between 100-500 MeV/c incident anti n momenta, using the method of time of flight. The antineutrons were obtained through the charge exchange reaction by antiprotons in a scintillator stack. The annihilation events were identified by a vertex detector, and the antineutron flux was determined by a calorimeter. The cross section varies with the momentum p roughly as A + B/p. No evidence for narrow resonance states was found.
Research Organization:
Houston Univ., TX (USA)
OSTI ID:
6031204
Country of Publication:
United States
Language:
English

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Related Subjects

651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANNIHILATION
ANTIBARYONS
ANTIMATTER
ANTINEUTRON REACTIONS
ANTINUCLEI
ANTINUCLEON REACTIONS
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYON REACTIONS
BARYONS
BASIC INTERACTIONS
CHARGE-EXCHANGE REACTIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
HADRON REACTIONS
HADRONS
HYDROGEN 1 TARGET
INFORMATION
INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
TARGETS