Total [ital d]+[ital d][r arrow][alpha]+[eta] cross sections near threshold
Journal Article
·
· Physical Review, C (Nuclear Physics); (United States)
- Institut de Physique Nucleaire, IN2P3-CNRS, 91406 Orsay (France) Laboratoire National Saturne, CEN Saclay, 91191 Gif-sur-Yvette (France) Institut fuer Strahlen und Kernphysik, 53115 Bonn (Germany) IN2P3-CNRS, 75016 Paris (France)
The total cross section for [eta] production in deuteron-deuteron interactions has been measured at four different kinetic energies, from 0.7 MeV to 3.7 MeV above threshold. The squared amplitude is consistent with a constant value of [vert bar][ital f][vert bar][sup 2]=(24.6[plus minus]1.2[plus minus]1.7) nb/sr close to threshold (14[lt][ital p][sub [eta]][lt]40 MeV/[ital c]). Assuming that the [pi][sup 0]-[eta] mixing reaction mechanism is dominant, this result allows a prediction of ([ital d][sigma]/[ital d][Omega])[sub [pi][sup 0]]=(8.3[plus minus]0.5 [plus minus]0.6) pb/sr for the cross section of the isospin-forbidden reaction [ital d]+[ital d][r arrow][alpha]+[pi][sup 0] at the [eta]-threshold energy.
- OSTI ID:
- 7015048
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:2; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662340 -- Hadron Interactions-- (1992-)
663440* -- D-
T-
& He-induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
BOSONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERIUM TARGET
DEUTERON REACTIONS
ELEMENTARY PARTICLES
ENERGY
ETA MESONS
HADRONS
ISOSPIN
KINETIC ENERGY
MESONS
NUCLEAR REACTIONS
PARTICLE PROPERTIES
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
TARGETS
TOTAL CROSS SECTIONS
663440* -- D-
T-
& He-induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
BOSONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERIUM TARGET
DEUTERON REACTIONS
ELEMENTARY PARTICLES
ENERGY
ETA MESONS
HADRONS
ISOSPIN
KINETIC ENERGY
MESONS
NUCLEAR REACTIONS
PARTICLE PROPERTIES
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
TARGETS
TOTAL CROSS SECTIONS