Dilaton and dynamical fermion mass generation

Hung, PQ; Zoupanos, G

dc.contributor.author	Hung, PQ	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:06:51Z
dc.date.available	2014-03-01T01:06:51Z
dc.date.issued	1987	en
dc.identifier.issn	0370-2693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9632
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-23044454014&partnerID=40&md5=f31d018965420baa612e579dc7c63545	en
dc.subject.classification	Physics, Multidisciplinary	en
dc.title	Dilaton and dynamical fermion mass generation	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1987	en
heal.abstract	In gauge theories with a hierarchy of mass scales there might appear a pseudo-Goldstone boson, the dilaton, resulting from the spontaneous breaking of scale symmetry. In addition light pseudoscalar bosons (axions) are expected in this class of models. We show that dynamical generation of fermion masses in these theories and the existence of a dilation lead to unacceptably high axion masses. Therefore a dynamical fermion mass generation mechanism and a dilaton cannot coexist in a large class of such gauge theories. © 1987.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Physics Letters B	en
dc.identifier.isi	ISI:A1987H685500023	en
dc.identifier.volume	190	en
dc.identifier.issue	1-2	en
dc.identifier.spage	127	en
dc.identifier.epage	130	en