Very heavy quarks (M approximately-greater-than 200 GeV/c/sup 2/) and a gauge theory of maximal CP violation. [Branching ratio]

Journal Article · Tue Feb 01 04:00:00 EST 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.15.832· OSTI ID:7329837

Goldberg, H

A pair of very heavy quarks (M approximately-greater-than 2m/sub W/) is introduced into the fermion sector of the SU(2) x U(1) gauge theory. If the coupling of these quarks to the d and s quarks introduces a maximal CP violation into the lagrangian, then the small size of the CP violation in the neutral-K mass matrix can be attributed in large part to the large masses of the quarks. If the very heavy quarks are isoscalar, then the superweak predictions for K/sup 0/ ..-->.. 2..pi.., 3..pi.. decays are strongly adhered to. A distinctive prediction of the model is that GAMMA (K/sub L/ ..-->.. ..pi../sup 0/e-bare)/GAMMA (K/sub L/ ..-->.. all) approx. =2GAMMA (K/sub L/ ..-->.. ..pi../sup 0/nu-bar..nu..)/GAMMA (K/sub L/ ..-->.. all) approx.10/sup -8/, which is at least 3 orders of magnitude larger than the branching ratio predicted by other theories, both CP-conserving and CP-violating. The electric dipole moment of the neutron is estimated to be of the order of 10/sup -27/ cm.

• Research Organization: Department of Physics, Northeastern University, Boston, Massachusetts 02115
• OSTI ID: 7329837
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:3; 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
BARYONS
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
COUPLING
CP INVARIANCE
DECAY
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
GAUGE INVARIANCE
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
KAONS
KAONS NEUTRAL
LAGRANGIAN FUNCTION
LEPTONIC DECAY
LIE GROUPS
MATHEMATICAL MODELS
MESONS
NEUTRONS
NUCLEONS
PARTICLE DECAY
PARTICLE MODELS
PIONS
PSEUDOSCALAR MESONS
QUARK MODEL
STRANGE PARTICLES
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
WEAK INTERACTIONS
WEAK PARTICLE DECAY