Effective action of matter fields in four-dimensional string orientifolds | Zendy

Pascal Bain | Zendy; Marcus Berg | Zendy

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Effective action of matter fields in four-dimensional string orientifolds

Author(s) -

Pascal Bain,

Marcus Berg

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/04/013

Subject(s) - orientifold , physics , moduli , string theory , theoretical physics , string (physics) , supergravity , string field theory , tadpole (physics) , action (physics) , effective action , field theory (psychology) , supersymmetry , particle physics , quantum electrodynamics , mathematical physics , quantum mechanics

We study various aspects of the Kahler metric for matter fields in N=1,2orientifold compactifications of type IIB string theory. The result has aninfrared-divergent part which reproduces the field- theoretical anomalousdimensions, and a moduli-dependent part which comes from N=2 sectors of theorientifold. For the N=2 orientifolds, we also compute the disk amplitude fortwo matter fields on the boundary and a twisted closed string modulus in thebulk. Our results are in agreement with supersymmetry: the singlet under theSU(2)_R R-symmetry has vanishing coupling, while the coupling of the SU(2)_Rtriplet does not vanish.Comment: 24 pages, JHEP LaTex, no figures, v2: references added, typos correcte

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