Published 1995 | Version v1
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Meson exchange currents and two neutrino double beta decay

  • 1. Komenskeho Univ., Bratislava (Slovakia)

Description

By using a field theory approach a detailed analysis of the two neutrino double beta decay amplitude has been performed. We have shown that the summation over the intermediate nuclear states in the present two neutrino double beta decay studies corresponds to a summation over a class of meson exchange diagrams. We offer some arguments showing that the two nucleon mechanism considered at present does not provide the main contribution to the two neutrino double beta decay amplitude. A new electron-gamma exchange mechanism for this process is suggested. 31 refs., 1 fig

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Additional details

Publishing Information

Imprint Pagination
11 p.
Report number
JINR-E--4-95-224

INIS

Country of Publication
Joint Institute for Nuclear Research (JINR)
Country of Input or Organization
Joint Institute for Nuclear Research (JINR)
INIS RN
27006805
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BOSON-EXCHANGE MODELS; CURRENTS; DECAY AMPLITUDES; DOUBLE BETA DECAY; FEYNMAN DIAGRAM; GAMOW-TELLER RULES; NEUTRINOS
Descriptors DEC
AMPLITUDES; BETA DECAY; BETA-MINUS DECAY; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; FERMIONS; INFORMATION; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; NUCLEAR DECAY; PARTICLE MODELS; PERIPHERAL MODELS; TRANSITION AMPLITUDES

Optional Information

Notes
Submitted to Physical Review. C, Nuclear Physics.