delta. T=1/2 rule in quark models with physical color

Journal Article · Sat Jul 01 04:00:00 EDT 1978 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6078476

Arbuzov, B A; Kompaneets, V G; Tikhonin, F F

The hadronic weak current is constructed in the three-triplet quark model with observable color. The current has the following properties: a) it satisfies the weak SU (2) algebra; b) the neutral current is completely diagonal and coincides with the electromagnetic current in the quark structure; c) the (white) part of the current has the properties of the Gabibbo current. The features of the colorless part of the nonleptonic Lagrangian obtained from this current are as follows: a) the ratio of the coefficients of the amplitudes of transitions with ..delta..T=1/2 and ..delta..T=3/2 is approx.25, which coincides with the experimental value; b) there are no transitions with ..delta..S=2; c) the magnitudes of the amplitudes of transitions with ..delta..T=0, 1, and 2 with no change of strangeness are comparable.

• Research Organization: Institute of High Energy Physics, Serpukhov
• OSTI ID: 6078476
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 28:1; ISSN SJNCA
• 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
COLOR MODEL
COMPOSITE MODELS
CURRENTS
LIE GROUPS
MATHEMATICAL MODELS
NEUTRAL CURRENTS
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL
SELECTION RULES
STRANGENESS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS