Geometric couplings and brane supersymmetry breaking

被引:74
作者
Pradisi, G [1 ]
Riccioni, F [1 ]
机构
[1] Univ Roma Tor Vergata, Dipartimento Fis, Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy
关键词
D O I
10.1016/S0550-3213(01)00441-2
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Orientifold vacua allow the simultaneous presence of supersymmetric bulks, with one or more gravitinos, and nonsupersymmetric combinations of BPS branes. This "brane supersymmetry breaking" raises the issue of consistency for the resulting gravitino couplings, and Dudas and Mourad recently provided convincing arguments to this effect for the ten-dimensional USp(32) model. These rely on a nonlinear realization of local supersymmetry a la Volkov-Akulov, although no gravitino mass term is present, and the couplings have a nice geometrical interpretation in terms of "dressed" bulk fields, aside from a Wess-Zumino-like term, resulting from the supersymmetrization of the Chern-Simons. couplings. Here we show that all couplings can be given a geometrical interpretation, albeit in the dual 6-form model, whose bulk includes a Wess-Zumino term, so that the nongeometric ones are in fact demanded by the geometrization of their duals. We also determine the low-energy couplings for six-dimensional (1, 0) models with brane supersymmetry breaking. Since these include both Chem-Simons and Wess-Zumino terms, only the resulting field equations are geometrical, aside from contributions due to vectors of supersymmetric sectors. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:33 / 60
页数:28
相关论文
共 94 条
[82]   Surprises in open-string perturbation theory [J].
Sagnotti, A .
NUCLEAR PHYSICS B, 1997, :332-343
[83]   A NOTE ON THE GREEN-SCHWARZ MECHANISM IN OPEN-STRING THEORIES [J].
SAGNOTTI, A .
PHYSICS LETTERS B, 1992, 294 (02) :196-203
[84]   Open descendants in conformal field theory [J].
Sagnotti, A ;
Stanev, YS .
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS, 1996, 44 (6-7) :585-596
[85]  
Sagnotti A, 1997, NUCL PHYS B, P200, DOI 10.1016/S0920-5632(97)00080-7
[86]  
Sagnotti A., HEPTH9509080
[87]  
SAGNOTTI A, 1987, CARG SUMM I NONP MET
[88]   REALISTIC MODEL-BUILDING WITH THE AKULOV-VOLKOV SUPERFIELD AND SUPERGRAVITY [J].
SAMUEL, S ;
WESS, J .
NUCLEAR PHYSICS B, 1983, 226 (02) :289-298
[89]   SECRET SUPERSYMMETRY [J].
SAMUEL, S ;
WESS, J .
NUCLEAR PHYSICS B, 1984, 233 (03) :488-510
[90]   A SUPERFIELD FORMULATION OF THE NON-LINEAR REALIZATION OF SUPERSYMMETRY AND ITS COUPLING TO SUPERGRAVITY [J].
SAMUEL, S ;
WESS, J .
NUCLEAR PHYSICS B, 1983, 221 (01) :153-177