Bbb ZN × Bbb ZM orientifolds with and without discrete torsion | Zendy

Matthias Klein | Zendy; Raúl Rabadán | Zendy

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Bbb Z_N × Bbb Z_M orientifolds with and without discrete torsion

Author(s) -

Matthias Klein,

Raúl Rabadán

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 - 10.1088/1126-6708/2000/10/049

Subject(s) - orbifold , torsion (gastropod) , supersymmetry , physics , rank (graph theory) , combinatorics , mathematical physics , mathematics , medicine , surgery

We discuss compact four-dimensional Z_N x Z_M type IIB orientifolds. We takea systematic approach to classify the possible models and construct themexplicitely. The supersymmetric orientifolds of this type have already beenconstructed some time ago. We find that there exist several consistentorientifolds for each of the discrete groups Z_2 x Z_2, Z_2 x Z_4, Z_4 x Z_4,Z_2 x Z_6, Z_2 x Z_6' and Z_6 x Z_6 if anti-D5-branes are introduced.Supersymmetry is broken by the open strings ending on antibranes. The rank ofthe gauge group is reduced by a factor two if the underlying orbifold space hasdiscrete torsion.Comment: Latex, 61 page

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