Spectra of D - branes with Higgs vevs
نویسنده
چکیده
Ron Donagi, Sheldon Katz, and Eric Sharpe 1 Department of Mathematics David Rittenhouse Laboratory University of Pennsylvania 209 South 33rd Street Philadelphia, PA 19104 2 Department of Mathematics 1409 W. Green St., MC-382 University of Illinois Urbana, IL 61801 2 Department of Physics University of Illinois at Urbana-Champaign Urbana, IL 61801 [email protected], [email protected], [email protected]
منابع مشابه
Mathematical Aspects of D-branes *
In this lecture we review recent work on describing D-branes with nonzero Higgs vevs in terms of sheaves, which gives a physical on-shell D-brane interpretation to more sheaves than previously understood as describing D-branes. The mathematical ansatz for this encoding is checked by comparing open string spectra between D-branes with nonzero Higgs vevs to Ext groups between the corresponding sh...
متن کاملReconstructing Neutrino Properties from Collider Experiments in a Higgs Triplet Neutrino Mass Model
We extend the minimal supersymmetric standard model with bilinear R-parity violation to include a pair of Higgs triplet superfields. The neutral components of the Higgs triplets develop small vacuum expectation values (VEVs) quadratic in the bilinear R-parity breaking parameters. In this scheme the atmospheric neutrino mass scale arises from bilinear R-parity breaking while the solar neutrino m...
متن کاملSpontaneous CP violation in supersymmetric models with four Higgs doublets.
We consider supersymmetric extensions of the standard model with two pairs of Higgs doublets. We study the possibility that CP violation is generated spontaneously in the scalar sector via vacuum expectation values (VEVs) of the Higgs fields. Using a simple geometrical interpretation of the minimum conditions we prove that the minimum of the tree-level scalar potential for these models is allwa...
متن کاملA construction of a minimal Higgs potential of left - right symmetric gauge model
We study non-zero vacuum expectation values (VEVs) of scalars of left-right symmetric model. These VEVs can be written in matrix forms in a SU(2)L ×SU(2)R basis. Such matrices manifest surviving symmetries at the end of left-right symmetry breaking. Then we go upwards in energy scale and construct a minimal left-right symmetric Higgs potential, using the Cayley-Hamilton theorem. This potential,...
متن کاملDon’t Panic! Closed String Tachyons in ALE Spacetimes
We consider closed string tachyons localized at the fixed points of noncompact non-supersymmetric orbifolds. We argue that tachyon condensation drives these orbifolds to flat space or supersymmetric ALE spaces. The decay proceeds via an expanding shell of dilaton gradients and curvature which interpolates between two regions of distinct angular geometry. The string coupling remains weak through...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005