CPT, CP, and C phases, and their effects, in Majorana-particle processes

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.30.1023· OSTI ID:6349655

Kayser, B

In neutrinoless double-..beta.. decay, the contributions of two virtual Majorana neutrinos with opposite CP parity will interfere destructively. This makes it evident that the amplitudes for reactions involving Majorana particles contain significant new phase factors, reflecting the special discrete-symmetry properties of these particles. To study this phenomenon, we derive and examine the CPT, CP, and C properties of Majorana particles. We then apply these properties, especially to the study of neutrinoless double-..beta.. decay, and to the neutral weak and electromagnetic interactions of Majorana particles. We show how the new phase factors in the Feynman amplitudes for Majorana-particle processes arise, and see that their precise form and location within these amplitudes depends on one's choice of formalism.

• Research Organization: Division of Physics, National Science Foundation, Washington, D.C. 20550
• OSTI ID: 6349655
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 30:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645302* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Electromagnetic & Weak Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
BASIC INTERACTIONS
BETA DECAY
CP INVARIANCE
CPT THEOREM
CURRENTS
DECAY
DIAGRAMS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FEYNMAN DIAGRAM
FIELD THEORIES
FORM FACTORS
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTONS
MASSLESS PARTICLES
NEUTRAL CURRENTS
NEUTRINOS
PARTICLE PROPERTIES
SUPERSYMMETRY
SYMMETRY
WEAK INTERACTIONS
WEAK NEUTRAL CURRENTS