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Browsing by Author "Gómez Santamaría, Mario Emilio"
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Confronting grand unification with lepton flavour violation, dark matter and LHC data
Ellis, J.; Gómez Santamaría, Mario Emilio
; Ruiz de Austri, R.; Shafi, Qaisar (Springer Verlag, 2020-09)
We explore possible signatures for charged lepton flavour violation (LFV), sparticle discovery at the LHC and dark matter (DM) searches in grand unified theories (GUTs) based on SU(5), flipped SU(5) (FSU(5)) and ... -
Confronting SUSY GUT With Dark Matter, Sparticle Spectroscopy and Muon (g − 2)
Gómez Santamaría, Mario Emilio; Smaragda, Lola; Ruiz de Austri, R.; Shafi, Q. (Frontiers Media, 2018-11)
We explore the implications of LHC and cold dark matter searches for supersymmetric particle mass spectra in two different grand unified models with left-right symmetry, SO(10) and SU(4)c × SU(2)L × SU(2)R (4-2-2). We ... -
Cosmology of an Axion-Like Majoron
Cuesta, A. J.; Gómez Santamaría, Mario Emilio; Illana Calero, José Ignacio; Masip Mellado, Manuel (Institute of Physics, 2022)
We propose a singlet majoron model that defines an inverse seesaw mechanism in the v sector. The majoron phi has a mass m(phi) approximate to 0.5 eV and a coupling to the tau lepton similar to the one to neutrinos. In the ... -
CP and lepton-number violation in GUT neutrino models with abelian flavour symmetries
Ellis, J.; Gómez Santamaría, Mario Emilio; Smaragda, Lola (Springer Verlag, 2007-07)
We study the possible magnitudes of CP and lepton-number-violating quantities in specific GUT models of massive neutrinos with different Abelian flavour groups, taking into account experimental constraints and requiring ... -
Dark matter, sparticle spectroscopy and muon (g-2) in SU(4)(c) x SU(2)(L) x SU(2)(R)
Gómez Santamaría, Mario Emilio; Lola, S.; Ruiz de Austri, R.; Shafi, Q. (Scuola Internazionale Superiore di Studi Avanzati (SISSA), 2018)
We explore the sparticle mass spectra including LSP dark matter within the framework of supersymmetric SU(4)(c) x SU(2)(L) x SU(2)(R) (422) models, taking into account the constraints from extensive LHC and cold dark matter ... -
Effects of sfermion mixing induced by RGE running in the minimal flavor violating CMSSM
Gómez Santamaría, Mario Emilio; Heinemeyer, S.; Rehman, M. (SpringerOpen, 2015-09)
Within the Constrained Minimal Supersymmetric Standard Model (CMSSM) with Minimal Flavor Violation (MFV) for scalar quarks, we study numerically the effects of intergenerational squark mixing on B-physics observables, ... -
Elastic scattering and α-particle production in 6He + 208Pb collisions at 22 MeV
Acosta Sánchez, Luis Armando; Sánchez Benítez, Ángel Miguel; Gómez Santamaría, Mario Emilio; Martel Bravo, Ismael; Pérez Bernal, Francisco; Pizarro, F.; Rodríguez Quintero, José; Rusek, K.; Álvarez, M. A. G.; Andrés, M. V.; Espino, José Manuel; Fernández García, J. P.; Gómez Camacho, Joaquín; Moro, A. M.; Angulo, C.; Cabrera Caño, Jesús; Casarejos, E.; Demaret, P.; Borge, M. J. G.; Escrig, D.; Tengblad, Olof; Cherubini, S.; Figuera, P.; Gulino, Marisa; Freer, M.; Metelko, C.; Ziman, V.; Raabe, R.; Mukha, I.; Smirnov, D.; Kakuee, O. R.; Rahighi, J. (American Physical Society, 2011)
Experimental results of the elastic scattering of 6He on 208Pb at ELAB = 22 MeV, measured at the CRC facility (Louvain-la-Neuve, Belgium), are presented, including results on the 4He production channel. These data were taken ... -
Excited lepton triplet contribution to electroweak observables at one loop level
Rehman, M.; Gómez Santamaría, Mario Emilio; Panella, O. (SpringerOpen, 2021)
In this paper, we present the one-loop radiative corrections to the electroweak precision observable ρ com ing from the IW = 1 multiplet excited leptons. We have cal culated the couplings of the exotic lepton triplet to ... -
Muon g − 2, neutralino dark matter and stau NLSP
Gómez Santamaría, Mario Emilio; Shafi, Qaisar; Tiwari, Amit; Ün, Cem Salih (Springer, 2022)
We explore the implications of resolving the muon g-2 anomaly in a SU(4)c×SU(2)L×SU(2)R model, where the soft supersymmetry breaking scalar and gaugino masses break the left-right (LR) symmetry. A 2s resolution of ... -
New gamma ray signal from gravitationally boosted neutralinos at the galactic center
Cannoni, Mirco; Gómez Santamaría, Mario Emilio; Pérez García, M. A.; Vergados, J. D. (American Physical Society, 2012)
We discuss the possibility that colliding dark matter particles in the form of neutralinos may be gravitationally boosted near the supermassive black hole at the Galactic center so that they can have enough collision energy ... -
Scheme for the extraction of WIMP-nucleon scattering cross sections from total event rates
Cannoni, Mirco; Vergados, J. D.; Gómez Santamaría, Mario Emilio (American Physical Society, 2011)
We propose a scheme that allows to analytically determine the three elementary cross sections and connect the solutions to the relative sign between the proton and the neutron spin scattering amplitudes once the measurements ... -
Searches for lepton flavour violation at a linear collider
Carquín, E.; Ellis, J.; Gómez Santamaría, Mario Emilio; Lola, S. (Springer Verlag, 2011)
We investigate the prospects for detection of lepton flavour violation in spar-ticle production and decays at a Linear Collider (LC), in models guided by neutrino os-cillation data. We consider both slepton pair production ... -
Standard model extensions with massive neutrinos phenomenology and cosmological implications
Naranjo Pérez, Pedro (Universidad de Huelva, 2010)
El propósito de esta tesis es el análisis de diversos procesos en el marco de Física Más Allá del Modelo Estándar de partículas elementales. En concreto, se consideran modelos supersimétricos unificados para el estudio del ... -
Supersymmetric Lepton Flavour Violation and Neutrinos mass textures : an update
Gómez Santamaría, Mario Emilio; Cannoni, Mirco (IOP Publishing:, 2013)
We revise the prospects for the observation of charged lepton avour violation (LFV), in the light of the recent results from the LHC, MEG and neutrino experiments. We work in the context of the Minimal Supersymmetric ... -
Supersymmetry searches in GUT models with non-universal scalar masses
Cannoni, Mirco; Ellis, J.; Gómez Santamaría, Mario Emilio; Lola, S.; Ruiz de Austri, R. (IOP Publishing, 2016)
We study SO(10), SU(5) and flipped SU(5) GUT models with non-universal soft supersymmetry-breaking scalar masses, exploring how they are constrained by LHC supersymmetry searches and cold dark matter experiments, and how ... -
Testing Yukawa unification at LHC Run-3 and HL-LHC
Gómez Santamaría, Mario Emilio; Shafi, Qaisar; Salih Ün, Cem (Scuola Internazionale Superiore di Studi Avanzati (SISSA), 2020-07)
We explore t-b-τ Yukawa unification (YU) in a supersymmetric SU(4)c × SU(2)L ×SU(2)R model without imposing a discrete left-right (L-R) symmetry. A number of interesting solutions that are compatible with t-b-τ YU, LSP ...
