EXTENDED CHIRAL TRANSFORMATIONS INCLUDING DIQUARK FIELDS AS PARAMETERS

Authors
NOVOZHILOV Y PRONKO A VASSILEVICH D
Citation
Y. Novozhilov et al., EXTENDED CHIRAL TRANSFORMATIONS INCLUDING DIQUARK FIELDS AS PARAMETERS, Physics letters. Section B, 343(1-4), 1995, pp. 358-362
Citations number
23
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
343
Issue
1-4
Year of publication
1995
Pages
358 - 362
Database
ISI
SICI code
0370-2693(1995)343:1-4<358:ECTIDF>2.0.ZU;2-K
Abstract
We introduce an extended chiral transformation, which depends both on pseudoscalar and diquark fields as parameters, and determine its group structure. Assuming soft symmetry breaking in the diquark sector, the bosonisation of a quasi-Goldstone ud-diquark is performed. In the chi ral limit the ud-diquark mass is defined by the gluon condensate, m(ud )approximate to 300 MeV. The diquark charge radius is [r(ud)(2)](1/2)a pproximate to 0.5 fm.