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23/10/2017, 10:00
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Prof. Aurelio Juste (IFAE)23/10/2017, 11:00
A possible extension of the Standard Model that addresses the hierarchy problem
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in a natural way involves the existence of a new strongly-interacting sector, of which
the Higgs boson would be a pseudo-Goldstone boson of a spontaneously-broken global
symmetry. One particular realization of this scenario, referred to as "Composite Higgs",
predicts the existence of new fermionic resonances... -
Ernesto Arganda (UNLP, La Plata)23/10/2017, 16:00
The search for heavy Higgs bosons at the LHC represents an intense experimental program, carried out by the ATLAS and CMS collaborations, as well as the hunt of invisible Higgs decays and dark matter candidates. No significant deviations from the SM backgrounds have been observed in any of these searches, imposing important constraints over the parameter space of different new physics models...
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Daniel De Florian (ICAS), Ignacio Fabre (ICAs)24/10/2017, 11:00
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Roberto Morales (UNLP)24/10/2017, 16:00
In this talk I present a new computation of the Lepton Flavor Violating
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Higgs decays that are generated radiatively to one-loop from heavy
right-handed neutrinos. We work within the context of the Inverse Seesaw
model with three right-handed neutrinos and three extra singlets, but the
results could be generalized to other Low Scale Seesaw models. The novelty
of our computation is that it uses... -
Mariel Estevez (ICAS)24/10/2017, 16:25
We propose a direct measurement of the CKM element Vtd at the LHC. Taking profit of the imbalance between d and d¯ quark content in the proton, we show that a non-zero Vtd induces a charge asymmetry in the tW associated production. The main backgrounds to this process, tt¯ production, and tW associated production mediated by Vtb, give charge symmetric contributions at leading order in QCD....
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Daniel Lopz Fogliani (UBA, Buenos Aires)25/10/2017, 11:00
Supersymmetric extensions of the standard model provides a solution the the hierarchy problem and the possibility to give observable signals at the LHC. When R-parity is broken and the right-handed neutrinos are included in the spectrum many interesting interpretations are possible. After a brief introduction of the simplest model including many useful interpretations and desirable properties,...
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Marcela Carena (FermiLab)25/10/2017, 16:00
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Gustavo Otero y Garzon (UBA)26/10/2017, 11:00
Analysis and implementations by the UBA group at ATLAS
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Prof. Jose Zurita (KIT)26/10/2017, 16:00
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Leandro Da Rold (CAB, Bariloche)27/10/2017, 11:00
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Anibal Medina (UNLP, La Plata)27/10/2017, 16:00
In the Minimal Supersymmetric Standard Model (MSSM) searches for the heaviest CP-even and CP-odd Higgs H, A to tau-lepton pairs severely constrain the parameter region for large values of tanβ and light Higgs bosons H, A. We demonstrate how the exper- imental constraint can be avoided by new decays to light third-generation sfermions, whose left-right couplings to H can be maximised in regions...
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Jose Zurita (KIT, Karlsruhe)
The simplified models where dark matter is featured as part of a single electroweak multiplet (“minimal dark matter) are under siege, except for the fermion doublet (Majorana), which corresponds to the pure Higgsino scenario in Supersymmetry. In this talk I will review the existing constraints on this model, and will discuss how future proton-proton colliders and electron-proton colliders can...
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