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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 543180.0, MPI für Physik / MPI für Physik
FCNC Processes from D-brane Instantons
Authors:Blumenhagen, Ralph; Deser, Andreas; Lust, Dieter
Date of Publication (YYYY-MM-DD):2011
Title of Journal:Journal of High Energy Physics
Journal Abbrev.:JHEP
Issue / Number:1102
Start Page:79
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Low string scale models might be tested at the LHC directly by their Regge resonances. For such models it is important to investigate the constraints of Standard Model precision measurements on the string scale. It is shown that highly suppressed FCNC processes like K0- bar K^0 oscillations or leptonic decays of the D0-meson provide non-negligible lower bounds on both the perturbatively and surprisingly also non-perturbatively induced string theory couplings. We present both the D-brane instanton formalism to compute such amplitudes and discuss various possible scenarios and their constraints on the string scale for (softly broken) supersymmetric intersecting D-brane models.
Classification / Thesaurus:Theoretical Physics
Comment of the Author/Creator:28 pages, 13 figures, reference added, 1 typo corrected
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2010-87
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:1007.4770
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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