Photon spectrum in pion capture on tritium

Journal Article · Mon Apr 19 04:00:00 EST 1976 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.36.942· OSTI ID:7364102

Bistirlich, J A; Cooper, S; Crowe, K M; Shively, F T; Grilly, E R; Perroud, J P; Sherman, R H; Baer, H W; Truol, P

The photon spectrum from the pion-capture reaction ..pi../sup -/ + /sup 3/H ..-->.. 3n + ..gamma.. was measured with a high-resolution pair spectrometer. The measured branching ratio (..pi../sup -/ + /sup 3/H ..-->.. 3n +..gamma..)/ (..pi../sup -/ + /sup 3/H ..-->.. 3n + ..gamma.. or 3n) is (4.5 +- 0.8)%. The shape of the photon spectrum is in satisfactory agreement with theoretical calculations which include final-state interactions among the three neutrons. No evidence for a bound trineutron is found. (AIP)

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 7364102
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 36:16; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

651225* -- Nuclear Properties & Reactions
A=1-5
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BOSONS
BOUND STATE
BRANCHING RATIO
CAPTURE
CHARGED-PARTICLE REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FINAL-STATE INTERACTIONS
GAMMA RADIATION
GAMMA SPECTRA
HADRON REACTIONS
HADRONS
INTERACTIONS
IONIZING RADIATIONS
MESON REACTIONS
MESONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEONS
PION REACTIONS
PIONS
PIONS MINUS
POLYNEUTRONS
PSEUDOSCALAR MESONS
RADIATIONS
SPECTRA
TARGETS
TRINEUTRONS
TRITIUM TARGET