PHOTOMESON PRODUCTION FROM NEUTRONS BOUND IN HELIUM AND DEUTERIUM. Technical Report No. 41

Technical Report · Fri Jun 01 04:00:00 EDT 1962

OSTI ID:4775015

Smith, J H; Koester, Jr, L J

Photomeson production from neutrons bound in He and deuterium was investigated by simultaneously measuring the angle and energy of the meson and the recoil proton. 270- Mev bremsstrahlung was used and, in this experiment only pions at 75 deg in the laboratory were measured. This corresponds roughly to 90 deg in the center of mass system of the photon and struck neutron. The angular distributions were interpreted to give the internal nuclear momentum distribution of the parent neutron by comparing the experimental data with a calculation based on the impulse approximation. The deuterium data agree both in shape and in absolute magnitude with predictions based on the Hulthen wave function. The He data indicate that the neutrons involved in photomeson production have fewer high momentum components in their wavefunctions than those found from other types of experiments. This result is interpreted as evidence for the reabsorption of mesons by the parent nucleon and another nucleon interacting strongly with it to produce pseudodeuteron photodisintegrations. These strong two body interactions are believed responsible for the high momentum components of the internal nuclear momentum distribution. (auth)

• Research Organization: Illinois. Univ., Urbana. Physics Research Lab.
• NSA Number: NSA-16-029644
• OSTI ID: 4775015
• Report Number(s): NP-11900
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
ANGULAR DISTRIBUTION
BREMSSTRAHLUNG
DEUTERIUM
DISTRIBUTION
ENERGY
ENERGY RANGE
HELIUM
INTERACTIONS
MANY BODY PROBLEM
MEASURED VALUES
MESONS
MOMENTUM
NEUTRONS
PHOTOFISSION
PHOTOPRODUCTION
PHYSICS
PROTONS
QUANTUM MECHANICS
RECOILS