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Axial vector renormalization constant from SU(4) current algebra

โœ Scribed by Mamata Pattnaik

Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
375 KB
Volume
46
Category
Article
ISSN
0003-4916

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โœฆ Synopsis

A set of relations among the reduced matrix elements of current operators is obtained by suitably choosing a set of intermediate states in the SU(4) commutator algebra of currents. These relations when solved give a value for axial vector renonnalization constant gA = 1.22, which is quite close to the experimental value gA = 1.18.

IL. CALCULATION

OF AXIAL VECTOR RENORMALIZATION CONSTANT-g,,

The commutator algebra of the current operators V,=, &, Ado, isomorphic to Lie algebra of W(4) group is given by 317

๐Ÿ“œ SIMILAR VOLUMES

Subtracted dispersion relations, current
Subtracted dispersion relations, current algebra and momentum dependent Kl4 decay axial vector form factors
โœ S.N Biswas; Ranabir Dutt; K.C Gupta ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 645 KB

KC4 decay axial vector form factors are considered within the frame of dispersion relations and current algebra. We use subtracted dispersion relations for the form factors, the subtraction term being given by the current commutator contribution and saturate the dispersion integrals by s, t, u chann