Anomalous U(1)s in type I string vacua
نویسندگان
چکیده
Ignatios Antoniadis Theory Division, CERN CH 1211 Geneva 23, Switzerland E-mail: [email protected] Elias Kiritsis Laboratoire de Physique Théorique de l’Ecole Normale Supérieure 24 rue Lhomond, Paris, Cedex 05, F-75231, FRANCE and Department of Physics, University of Crete, and FO.R.T.H. 71003 Heraklion, Greece E-mail: [email protected] John Rizos Department of Physics, University of Ioannina, 45110 Ioannina, Greece E-mail: [email protected]
منابع مشابه
Anomalous U(1)’s in Type I and Type IIB D=4, N=1 string vacua
We study the cancellation of U (1) anomalies in Type I and Type IIB D = 4, N = 1 string vacua. We first consider the case of compact toroidal Z N Type IIB orientifolds and then proceed to the non-compact case of Type IIB D3 branes at orbifold and orientifold singularities. Unlike the case of the heterotic string we find that for each given vacuum one has generically more than one U (1) with non...
متن کاملAnomalous U(1)s masses in non-supersymmetric open string vacua
Anomalous U(1)s are omnipresent in realizations of the Standard Model using D-branes. Such models are typically non-supersymmetric, and the anomalous U(1) masses are potentially relevant for experiment. In this paper, the string calculation of anomalous U(1) masses (hep-th/0204153) is extended to non-supersymmetric orientifolds. [email protected]
متن کاملThesis: Orientifolds, Anomalies and the Standard Model
In this thesis, we study aspects of D-brane realizations of the Standard Model. Specifically, we study orientifold models with rotation and translation elements that break supersymmetry, provide the general consistency conditions and derive the massless spectrum for these type of orientifolds. These models contain in general anomalous U(1) gauge fields. The Green-Schwarz mechanism cancels the a...
متن کاملClassification of Flat Directions in Perturbative Heterotic Superstring Vacua with Anomalous U ( 1 )
We develop techniques to classify Dand F -flat directions for N = 1 supersymmetric string vacua of the perturbative heterotic string theory, which possess an anomalous U(1) gauge group at the tree level. Genus-one corrections generate a Fayet-Iliopoulos term for the D-term of U(1)A, which is canceled by non-zero vacuum expectation values (VEVs) of certain massless multiplets in such a way that ...
متن کاملde Sitter vacua from uplifting D - terms in effective supergravities from realistic strings
We study the possibility of using the D-term associated to an anomalous U(1) for the uplifting of AdS vacua (to dS or Minkowski vacua) in effective supergravities arising from string theories, particularly in the type IIB context put forward by Kachru, Kallosh, Linde and Trivedi (KKLT). We find a gauge invariant formulation of such a scenario (avoiding previous inconsistencies), where the anoma...
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 2002