Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Tziveloglou, P."'
We provide a unified presentation of extensions of the Minimal Dark Matter framework in which new fermionic electroweak multiplets are coupled to each other via the Standard Model Higgs doublet. We study systematically the generic features of all the
Externí odkaz:
http://arxiv.org/abs/1711.08619
Autor:
D'Hondt, Jorgen, Mariotti, Alberto, Mawatari, Kentarou, Moortgat, Seth, Tziveloglou, Pantelis, Van Onsem, Gerrit
We develop the phenomenology of scenarios in which a dark matter candidate interacts with a top quark through flavour-changing couplings, employing a simplified dark matter model with an s-channel vector-like mediator. We study in detail the top-char
Externí odkaz:
http://arxiv.org/abs/1511.07463
The Singlet-Doublet model of dark matter is a minimal extension of the Standard Model with dark matter that is a mixture of a singlet and a non-chiral pair of electroweak doublet fermions. The stability of dark matter is ensured by the typical parity
Externí odkaz:
http://arxiv.org/abs/1505.03867
Publikováno v:
Nucl.Phys. B889 (2014) 650-675
It has been claimed that Dirac gaugino masses are necessary for realistic models of low-scale supersymmetry breaking, and yet very little attention has been paid to the phenomenology of a light gravitino when gauginos have Dirac masses. We begin to a
Externí odkaz:
http://arxiv.org/abs/1407.5076
Publikováno v:
Nuclear Physics B, Volume 884, July 2014, Pages 632-671
In the context of supersymmetric models where the gauginos may have both Majorana and Dirac masses we investigate the general constraints from flavour-changing processes on the scalar mass matrices. One finds that the chirality-flip suppression of fl
Externí odkaz:
http://arxiv.org/abs/1312.2011
We study the most general extension of the MSSM Lagrangian that includes scenarios in which supersymmetry is spontaneously broken at a low scale f. The spurion that parametrizes supersymmetry breaking in the MSSM is promoted to a dynamical superfield
Externí odkaz:
http://arxiv.org/abs/1211.5609
Autor:
Tziveloglou, Pantelis
This work consists of two parts. In the first part we construct the complete extension of the Minimal Supersymmetric Standard Model by higher dimensional effective operators and study its phenomenology. These operators encapsulate the effects on LHC
Externí odkaz:
http://arxiv.org/abs/1201.6040
Publikováno v:
Nucl.Phys.B848:1-32,2011
We continue a previous study of the MSSM Higgs Lagrangian extended by all effective operators of dimension d=6 that can be present beyond the MSSM, consistent with its symmetries. By supersymmetry, such operators also extend the neutralino and chargi
Externí odkaz:
http://arxiv.org/abs/1012.5310
Publikováno v:
Nucl.Phys.B841:157-177,2010
Using the formalism of constrained superfields, we derive the most general effective action of a light goldstino coupled to the minimal supersymmetric standard model (MSSM) and study its phenomenological consequences. The goldstino-induced couplings
Externí odkaz:
http://arxiv.org/abs/1006.1662
The string coupling of N=2 supersymmetric compactifications of type II string theory on a Calabi-Yau manifold belongs to the so-called universal dilaton hypermultiplet, that has four real scalars living on a quaternion-Kaehler manifold. Requiring Hei
Externí odkaz:
http://arxiv.org/abs/1005.0323