Classification of the chiral Z(2) X Z(2) fermionic models in the heterotic superstring
Φόρτωση...
Ημερομηνία
Συγγραφείς
Faraggi, A. E.
Kounnas, C.
Nooij, S. E. M.
Rizos, J.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Nuclear Physics B
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
The first particle physics observable whose origin may be sought in string theory is the triple replication of the matter generations. The class of Z(2) x Z(2) orbifolds of six-dimensional compactified tori, that have been most widely studied in the free fermionic formulation, correlate the family triplication with the existence of three twisted sectors in this class. In this work we seek an improved understanding of the geometrical origin of the three generation free fermionic models. Using fermionic and orbifold techniques we classify the Z(2) x Z(2) orbifold with symmetric shifts on six-dimensional compactified internal manifolds. We show that perturbative three generation models are not obtained in the case of Z(2) x Z(2) orbifolds with symmetric shifts on complex tori, and that the perturbative three generation models in this class necessarily employ an asymmetric shift. We present a class of three generation models in which the SO(10) gauge symmetry cannot be broken perturbatively, while preserving the Standard Model matter content. We discuss the potential implications of the asymmetric shift for strong-weak coupling duality and moduli stabilization. We show that the freedom in the modular invariant phases in the N = 1 vacua that control the chiral content, can be interpreted as vacuum expectation values of background fields of the underlying N = 4 theory, whose dynamical components are projected out by the Z(2)-fermionic projections. In this class of vacua the chiral content of the models is determined by the underlying N = 4 mother theory. (C) 2004 Elsevier B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
standard-like model, spontaneously broken supersymmetry, string models, 4-dimensional superstrings, threshold corrections, construction, formulation, n=2, compactification, dimensions
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000223495400002
http://ac.els-cdn.com/S0550321304004304/1-s2.0-S0550321304004304-main.pdf?_tid=2af5995e58580a5dc0f69fb382f6cc1f&acdnat=1334230750_eed3066d12def377ac18d1f37199dd5d
http://ac.els-cdn.com/S0550321304004304/1-s2.0-S0550321304004304-main.pdf?_tid=2af5995e58580a5dc0f69fb382f6cc1f&acdnat=1334230750_eed3066d12def377ac18d1f37199dd5d
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών