Dilaton and dynamical fermion mass generation

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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

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