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Proton strangeness induced by instantons

Klabučar, Dubravko; Kumerički, Krešimir; Melić, Blaženka; Picek, Ivica (1999) Proton strangeness induced by instantons. Czechoslovak Journal of Physics, 50 (Suppl.). pp. 187-193. ISSN 0011-4626

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Abstract

We report on a calculation of the dilute instanton liquid contribution to the strangeness in the proton. Specifically, we express the proton matrix elements of strange-quark operators in terms of a model valence nucleon state and the strangeness producing interactions. This enables us to evaluate the strangeness in different Lorentz channels in the same way. We find that in the context of the MIT bag model only the scalar strangeness is induced by the random instanton liquid. We discuss these results in the light of the recent experiments.

Item Type: Article
Uncontrolled Keywords: proton; strangeness; instantons; bag model
Subjects: NATURAL SCIENCES > Physics
Divisions: Theoretical Physics Division
Projects:
Project titleProject leaderProject codeProject type
Teorijska istraživanja osobina fundamentalnih česticaBranko Guberina00980102MZOS
Struktura elementarnih čestica i kvantna teorija poljaDubravko Tadić119222MZOS
Depositing User: Blaženka Melić
Date Deposited: 09 Feb 2016 13:34
Last Modified: 10 Feb 2016 10:12
URI: http://fulir.irb.hr/id/eprint/2457
DOI: 10.1007/s10582-000-0024-y

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