RT Journal Article
T1 K3 fibrations and softly broken N=4 supersymmetric gauge theories
A1 Gómez, César
A1 Hernández Redondo, Rafael
A1 López, Esperanza
AB Global geometry of K3-fibration Calabi-Yau threefolds, with Hodge number h_(2,1) = r+1, is used to define N =4 softly broken SU(r+1) gauge theories, with the bare coupling constant given by the dual heterotic dilaton, and the mass of the adjoint hypermultiplet given by the heterotic string tension. The U(r+1) Donagi-Witten integrable model is also derived from the K3-fibration structure, with the extra U(1) associated to the heterotic dilaton. The case of SU(2) gauge group is analyzed in detail. String physics beyond the heterotic point particle limit is partially described by the N =4 softly broken theory.
PB Elsevier
SN 0550-3213
YR 1997
FD 1997-09-08
LK https://hdl.handle.net/20.500.14352/60226
UL https://hdl.handle.net/20.500.14352/60226
LA eng
NO © 1997 Published by Elsevier Science B.V. We thank conversations with K. Landsteiner, W. Lerche, A. Sen, C. Vafa and N. Warner. This work is partially supported under grant OFES contract number 930083 by European Community grant ERBCHRXCT920069 and by PB92-1092. The work of E. L. is supported by C.A.P.V. fellowship. The work of R. H. is supported by U.A.M. fellowship.
NO OFES
NO European Community
NO C.A.P.V.
NO U.A.M.
DS Docta Complutense
RD 7 abr 2025