Confirmation of dip-bump structure in backward. pi. /sup -hyphen/d elastic scattering: Possible evidence for dibaryon resonances
Journal Article
·
· Phys. Rev. Lett.; (United States)
The backward differential cross section for ..pi../sup -hyphen/d elastic scattering has been measured at incident momenta between 420 and 1160 MeV/c. The data show two bumps at around 670 and 1100 MeV/c, two dips near 630 and 980 MeV/c, and a break at 550 MeV/c. The result of a phenomenological fit is consistent with the existence of three dibaryon resonances in this energy region. A theoretical calculation of Kanai et al. agrees well with the data below 800 MeV/c, but the agreement becomes worse above 800 MeV/c.
- Research Organization:
- Department of Physics, Hiroshima University, Hiroshima 730, Japan
- OSTI ID:
- 6259747
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:6; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645104 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BACKSCATTERING
BARYON RESONANCES
BARYONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DEUTERIUM TARGET
DIBARYON RESONANCES
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
INFORMATION
MEASURING INSTRUMENTS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE IDENTIFICATION
PION MINUS REACTIONS
PION REACTIONS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RESONANCE PARTICLES
SCATTERING
TARGETS
651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BACKSCATTERING
BARYON RESONANCES
BARYONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DEUTERIUM TARGET
DIBARYON RESONANCES
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
INFORMATION
MEASURING INSTRUMENTS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE IDENTIFICATION
PION MINUS REACTIONS
PION REACTIONS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RESONANCE PARTICLES
SCATTERING
TARGETS