Published 1983 | Version v1
Miscellaneous

An exciting fundamental derivation of SU(3) and a simultaneos lyemerging derivation of SU(6) all just from space-time symmetry

Creators

  • 1. Paraiba Univ., Joao Pessoa (Brazil). Dept. de Fisica

Description

We utilize Foldy's canonical representation (m,5/2) + -m,5/2) involving degrees of freedom pertaining to a spin of 5/2 units and make a unitary transformation to the current picture thereby deriving an expressing for the total angular momentum consisting of a together conserved orbital plus an intrinsic spin -1/2 part and yet another separately conserved SU(3)-unitary spin part. We demonstrate this explicity by algebraically deducing the Cartan-Weyl basis for The newly emerging invariance algebra whose eight generators are expressed in terms of three fundamental matrices representing spin-5/2 and proving that this basis excitingly coincides with that of the SU(3) algebra. The derivation of SU(6) in automatically achieved in our theory as a materials consequence Of the SU(3)-symmetry already derived and an SU(2)-spin symmetry guaranteed by the commentativity of Foldys mean sprin operators that find their find their natural places in the unitary-spin parts of the expressions for the Poincare generators, with the Dirac-type hamiltonian acting as the time-transtation generator. As a prelude aderivation of SU(2) is, initially presented working with Foldy's canomical representation (m,3/2) + (-m,3/2). In the process of deriving SU(2), an invariance under the discrete symmetrIc group S3 is also simultaneously datained. (author)

Availability note (English)

Available from the Library of the Comissao Nacional de Energia Nuclear, RJ, Brazil.

Abstract (Portuguese)

Utiliza-se a representacao carionica de Faldy (m,5/2) + (-m,5/2) envolvendo graus de liberdade, pertencendo a stin de unidades 5/2 e realiza-se uma transformacao Unitaria a visao corrente desse modo derivando uma expressao para o momento angular total consitindo de um orbital conservado junto mais um parte de spin-1/2 intrinseca e ainda outra parte de spin SU(3)-unitaria separadamente conservada. Isso e demonstrado explicitamente pela deducao algebrica da base de Cartan-Weyl a algebra de invariancia novamente emergente cujos oito geradores sao todos expressos em termos de tres matrizes fundamentais representando spin-5/2 e provando que essa base coincide excitantemente com aquela da algebra de SU(3). A derivacao de SU(6) e automaticamente alcancada nessa teoria como uma consequencia natural da simetria SU(3) ja derivada e uma simetria de spin SU(2) garantida pela comutavividade dos operadores de spin medio de foldy, que encontram seus lugares naturais nas partes de spin unitarios das expressoes para os geradores de Poincare, com a hamiltonian do tipo Dirac atuando como o gerador de translacao temporal. Como uma introducao uma derivacao de, SU(2) e inicialmente apresentada trabalhando com a representacao carionica de Foldy (m,3/2) + (-m,3/2). No processo de derivacao de SU(2), uma invariancia sob grupo simetrico discreto S3 e tambem simultaneamente obtido. (L.C.)

Additional details

Additional titles

Original title (no language)
Anais do 3. Encontro Nacional de Fisica de Particulas.

Publishing Information

Imprint Title
Proceedings of 3. National Meeting of Particle Physics and Fields
Imprint Pagination
208 p.
Journal Page Range
p. 157-174.

Conference

Title
3. National Meeting of Particle Physics and Fields.
Dates
18-21 Sep 1981.
Place
Cambuquira, MG (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
20080984
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ALGEBRA; ANGULAR MOMENTUM; DEGREES OF FREEDOM; GROUP THEORY; HAMILTONIANS; IRREDUCIBLE REPRESENTATIONS; MATRICES; SPACE-TIME; SPIN; SU-3 GROUPS; SU-6 GROUPS; UNITARY SYMMETRY
Descriptors DEC
LIE GROUPS; MATHEMATICAL OPERATORS; MATHEMATICS; PARTICLE PROPERTIES; QUANTUM OPERATORS; SU GROUPS; SYMMETRY; SYMMETRY GROUPS

Optional Information

Notes
Imprint:Anais do 3. Encontro Nacional de Fisica de Particulas.