Is the strange quark heavy or light?

C. Ayala, E. Bagán, A. Bramon

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

The (invariant) strange quark mass, m ̂s, and vacuum condensate, 〈s̄s〉0, are discussed in the context of SVZ-sum rules saturated by the scalar κ-meson. The value obtained for m ̂s ( m ̂s≅360 MeV) is found to approach its constituent mass value, while 〈s̄s〉0 is predicted to be negligibly small. These two features, which are characteristic of the c- and b- (i.e., heavy) quarks, are new and unexpected for the s-quark. Our results strongly depend on the κ-meson parameters, for which further analyses seem of interest. © 1987.
Original languageEnglish
Pages (from-to)347-353
JournalPhysics Letters B
Volume189
Issue number3
DOIs
Publication statusPublished - 7 May 1987

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