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9th ComHEP: Colombian Meeting on High Energy Physics

2–6 Dec 2024
America/Bogota timezone

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Session

Beyond the Standard Model

6 Dec 2024, 09:00
Paraninfo (Sede centro Universidad de Nariño)

Paraninfo

Sede centro Universidad de Nariño

Conveners

Beyond the Standard Model

  • Eduardo Rojas (Universidad de Nariño.)

Presentation materials

There are no materials yet.

  1. 57. PHYSICS BEYOND THE STANDARD MODEL
    WILLIAM ANTONIO PONCE GUTIERREZ
    06/12/2024, 09:00
  2. 7. Exploring Lepton-Flavor Violation in Higgs Decays via an Ultralight Gauge Boson
    Dr Marcela Marín (UNAM)
    06/12/2024, 10:50
    20 minutes talk

    In this work, we explore the potential of lepton-flavor violating (LFV) Higgs decays as a probe for new physics, specifically through the mediation of an ultralight gauge boson, denoted as $\chi$. Our study bridges the gap between a model generating the LFV interaction $\bar{\ell}_i \ell_j \chi$ at tree level and an effective field theory framework that preserves the light mass of $\chi$. We...

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  3. 62. QUARK MIXING MODEL WITH S3 MODULAR SYMMETRY AND 3 HIGGS DOUBLETS
    Mr Carlos Ceron (UNAM)
    06/12/2024, 11:15
    20 minutes talk

    An open problem that the Standard Model does not solve is about the ori-
    gin of the mass hierarchy among fermions. Different alternatives have been

    proposed by adding extra groups to the Gauge group of the Standard Model or
    by building hybrid models with some of them. It has been shown that the S3
    symmetry has given good results if, in addition, three Higgs doublets with their
    invariant...

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  4. 27. Higgs-like resonant signals in a no-universal 2HDM.
    Prof. Eduardo Rojas (Universidad de Nariño.)
    06/12/2024, 11:40
    20 minutes talk

    We study the possibility of obtaining the Standard Model (SM) of particle physics as an effective theory of a more fundamental
    one, whose electroweak sector includes two non-universal local $U(1)$ gauge groups, with the chiral anomaly cancellation taking place through an interplay among families. As a result of the spontaneous symmetry breaking, a massive gauge boson $Z'$ arises, which...

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  5. 60. Closure
    Carlos Sandoval Usme (Universidad Nacional de Colombia)
    06/12/2024, 12:05
    10 minutes talk
  6. 36. MODELOS 331 CON CARGAS ELECTRICAS EXOTICAS PARA β = √3
    EDUARD SUAREZ (U de Nariño)
    10 minutes talk

    Los modelos 331 resultan de gran interés desde el punto de vista teórico y experimental, ya que permiten explicar entre otras cosas la razón por la cual deben existir tres familias de fermiones en la naturaleza y por otra parte tienen parámetros experimentales que pueden acotarse en los aceleradores de partículas como el LHC. En general estos modelos son no universales y por lo tanto tienen...

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  7. 34. Two loops scattering Amplitudes in the forward limit for gauge theories
    Juan Camilo Guzman Martinez (Universidad Nacional de Colombia, sede Bogotá)
    20 minutes talk

    Using the CHY formalism to calculate scattering amplitudes, we compute the two loop amplitudes for Biadjoint scalar, pure Yang-Mills, pure Super Yang-Mills, pure Gravity and Supergravity in the context of forward limit analyzing the behavior of the singularities and the connection with asymptotic symmetries.

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