Published 1987 | Version v1
Journal article Metadata-only

Measurement of e+e- pair emission probability in thermal neutron capture by protons

Creators

  • 1. Joint Inst. for Nuclear Research, Dubna (USSR)

Description

The probability of e+e--pair emission in neutron capture by protons was measured making use of the annihilation γ-spectroscopy method. The result (5.8±2.4)x10-4 contradicts recent relativistic impulse-approximation calculations and agrees with previous calculations. The obtained value excludes also production of the short-lived ''standard'' axion with the lifetime τα<5x10-11 s and the mass mα=1.8 MeV

Additional details

Additional titles

Original title (Russian)
Измерение вероятности излучения е

Publishing Information

Journal Title
Yadernaya Fizika
Journal Volume
46
Journal Issue
6
Series
Yad. Fiz.
Journal Page Range
1601-1603
ISSN
0044-0027
CODEN
IDFZA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
20017747
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
ANNIHILATION; AXIONS; CAPTURE; DEUTERONS; ELECTRON PAIRS; GAMMA RADIATION; HYDROGEN 1 TARGET; INTERNAL PAIR PRODUCTION; LIFETIME; MASS; M1-TRANSITIONS; NEUTRON REACTIONS; POSITRONS; PROBABILITY; THERMAL NEUTRONS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BARYON REACTIONS; BARYONS; BOSONS; CHARGED PARTICLES; CONVERSION; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; FERMIONS; GOLDSTONE BOSONS; HADRON REACTIONS; HADRONS; INTERACTIONS; INTERNAL CONVERSION; IONIZING RADIATIONS; LEPTONS; MATTER; MULTIPOLE TRANSITIONS; NEUTRONS; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEONS; PAIR PRODUCTION; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; POSTULATED PARTICLES; RADIATIONS; TARGETS