Measurement of the antineutron-proton annihilation cross section extremely close to the N-barN threshold
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:5962395
In an experiment at the Brookhaven AGS n-barp annihilation has been studed very close to threshold, i.e. down to T-/sub n/approx. <1 MeV. The antineutrons were produced by antiprotons via charge exchange p-barp..-->..n-barn. The n-bar annihilation was detected in the same liquid hydrogen target in which they were produced. Very slow antineutrons were tagged by recording the associated, forward going neutron in a separate neutron time-of-flight detector. The n-barp annihilation cross section is extracted from the measured time dependence of the n-bar annihilation in the target. Preliminary results indicate values around ..beta../sub n/--sigma/sub A/approx. =35 mb (n-bar velocity * annihilation cross section).
- Research Organization:
- University of New Mexico, Department of Physics and Astronomy, Albuquerque, NM 87131
- OSTI ID:
- 5962395
- Report Number(s):
- CONF-860575-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 150:1
- Country of Publication:
- United States
- Language:
- English
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Technical Report
·
Mon Mar 13 23:00:00 EST 1961
·
OSTI ID:4044022
Search for narrow states in antineutron-proton total and annihilation cross-sections near N-barN threshold
Conference
·
Wed Oct 15 00:00:00 EDT 1986
· AIP Conf. Proc.; (United States)
·
OSTI ID:5923578
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Journal Article
·
Sat Aug 01 00:00:00 EDT 1987
· Phys. Rev. D; (United States)
·
OSTI ID:6059580
Related Subjects
645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANNIHILATION
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BROOKHAVEN AGS
CROSS SECTIONS
CYCLIC ACCELERATORS
DIMENSIONS
ELECTROMAGNETIC INTERACTIONS
ENERGY RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
KEV RANGE
KEV RANGE 100-1000
LENGTH
MATHEMATICAL SPACE
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PHASE SPACE
PROTON-ANTINEUTRON INTERACTIONS
SCATTERING LENGTHS
SPACE
SYNCHROTRONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANNIHILATION
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BROOKHAVEN AGS
CROSS SECTIONS
CYCLIC ACCELERATORS
DIMENSIONS
ELECTROMAGNETIC INTERACTIONS
ENERGY RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
KEV RANGE
KEV RANGE 100-1000
LENGTH
MATHEMATICAL SPACE
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PHASE SPACE
PROTON-ANTINEUTRON INTERACTIONS
SCATTERING LENGTHS
SPACE
SYNCHROTRONS