Search for structure in the $gamma$-ray spectra from anti-pd and anti-pp annihilations at rest

Journal Article · Mon Sep 29 04:00:00 EDT 1975 · Phys. Rev. Lett., v. 35, no. 13, pp. 824-827

OSTI ID:4159064

Kalogeropoulos, T E; Michael, D N; Lowenstein, D I; Nathan, A M; Samios, N P; Schwarzschild, A Z

The $gamma$-ray spectra from annihilations at rest have been measured with a 10-in.times10-in.-diam NaI(Tl) detector. The resolution of the system was approx.15% for $gamma$-ray energies between 50 and 200 MeV. No clear evidence is found for monoenergetic $gamma$ rays with intensities greater than 1 per 30 annihilations.

• Research Organization: Department of Physics, Syracuse University, New York 13210
• NSA Number: NSA-33-004110
• OSTI ID: 4159064
• Journal Information: Phys. Rev. Lett., v. 35, no. 13, pp. 824-827, Journal Name: Phys. Rev. Lett., v. 35, no. 13, pp. 824-827; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

*ANTIPROTON-DEUTERON INTERACTIONS-- ANNIHILATION
*PROTON-ANTIPROTON INTERACTIONS-- ANNIHILATION
641001*
BOUND STATE
GAMMA SPECTRA
MULTIPLICITY
N64110* --Physics (High Energy)--Particle Interactions & Properties (Experimental)--Electromagnetic