Zobrazeno 1 - 10
of 16
pro vyhledávání: '"G. K. Leontaris"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 1, Pp 1-28 (2021)
Abstract We study low energy implications of F-theory GUT models based on SU(5) extended by a $$U(1)'$$ U ( 1 ) ′ symmetry which couples non-universally to the three families of quarks and leptons. This gauge group arises naturally from the maximal
Externí odkaz:
https://doaj.org/article/41866e97f3a542aaa0bf6f2a293528ed
Publikováno v:
Universe, Vol 7, Iss 10, p 356 (2021)
Motivated by experimental measurements indicating deviations from the Standard Model predictions, we discuss F-theory-inspired models, which, in addition to the three chiral generations, contain a vector-like complete fermion family. The analysis tak
Externí odkaz:
https://doaj.org/article/2affa5d137a144ae816d7269960b5b50
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 6, Pp 1-11 (2017)
Abstract The investigation of the rôle of finite groups in flavor physics and, particularly, in the interpretation of the neutrino data has been the subject of intensive research. Motivated by this fact, in this work we derive the three-dimensional
Externí odkaz:
https://doaj.org/article/ca0c108a0d8e43e9b295f86097c858c1
Autor:
Rizos, G. K. Leontaris J.
Publikováno v:
Talk presented at the Corfu Summer Institute, Corfu Greece, September 2005
We describe the basic features of model building in the context of intersecting D-branes. As an example, a D-brane inspired construction with U(3)_C X U(3)_L X U(3)_R gauge symmetry is proposed -which is the analogue of the Trinification model- where
Externí odkaz:
http://arxiv.org/abs/hep-ph/0603203
Autor:
J. D. Vergados, G. K. Leontaris
Publikováno v:
Physics Letters B. 409:283-287
Motivated by the recent experimental data at HERA and ZEUS, which have reported evidence for leptoqark production at Sqrt{s}=314 GeV with a mass at M_D=200 GeV we consider its implications in unified supersymmetric theories. We also present calculati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed50f1ecadaebf6b9f56d0eed75a01df
https://doi.org/10.1016/s0370-2693(97)00889-7
https://doi.org/10.1016/s0370-2693(97)00889-7
Autor:
G. K. Leontaris
Publikováno v:
Physics Letters B. 372:212-218
In the four dimensional free fermionic formulation of the heterotic string, a semi-realistic $SU(4)\times SU(2)_L \times SU(2)_R$ model is proposed with three fermion generations in $(4,2,1)+(\bar 4,1,2)$ representations. The gauge symmetry of the mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fbd2a5fbc1ea19fd51c6fc515a4c8eb
https://doi.org/10.1016/0370-2693(96)00059-7
https://doi.org/10.1016/0370-2693(96)00059-7
Autor:
E. G. Floratos, G. K. Leontaris
Publikováno v:
Nuclear Physics B. 452:471-495
In various unified extensions of the Minimal Supersymmetric Standard Model, the Yukawa couplings of the third generation are predicted to be of the same order. As a result, low energy measured mass ratios, require large ratios of the standard model H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb5d30ffac10c29c47d00a82ecd52a13
https://doi.org/10.1016/0550-3213(95)00417-q
https://doi.org/10.1016/0550-3213(95)00417-q
Autor:
G. K. Leontaris
String instanton Yukawa corrections from Euclidean D-branes are investigated in an effective Standard Model theory obtained from the minimal U(3)xU(2)xU(1) D-brane configuration. In the case of the minimal chiral and Higgs spectrum, it is found that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2f6c1a9ade8b9b4b66a54877a38eb6e
http://olympias.lib.uoi.gr/jspui/handle/123456789/15964
http://olympias.lib.uoi.gr/jspui/handle/123456789/15964
Autor:
G. K. Leontaris
A three-family non-supersymmetric model with U(3)^3 gauge symmetry is analyzed in the context of intersecting D-branes. This is equivalent to the `trinification' model extended by three U(1) factors which survive as global symmetries in the low energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c8b22e5fd010ed5d4c549428baa8ad
http://arxiv.org/abs/0802.4301
http://arxiv.org/abs/0802.4301
We study D-brane inspired models with U(3) x U(2) x U(1)^N gauge symmetry in the context of split supersymmetry. We consider configurations with one, two and three (N=1,2,3) abelian branes and derive all hypercharge embeddings which imply a realistic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd45b469c4c009b0979181ced39e1eff
http://olympias.lib.uoi.gr/jspui/handle/123456789/16403
http://olympias.lib.uoi.gr/jspui/handle/123456789/16403