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FLASY 2022 - 9th Workshop on Flavour Symmetries and Consequences in Accelerators and Cosmology

27 June 2022 to 1 July 2022
Instituto Superior Técnico, Lisbon, Portugal
Europe/Lisbon timezone

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Session

Parallel Session III.1

28 Jun 2022, 16:45

Conveners

Parallel Session III.1

  • Luca Merlo

Presentation materials

There are no materials yet.

  1. 3. The Cost of an ALP Solution to the Neutral B-Anomalies
    Jesús Bonilla
    28/06/2022, 16:45
  2. 4. Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC
    Jonathan Machado-Rodríguez (Instituto de Física Teórica - UAM)
    28/06/2022, 17:00

    We propose a new search for Axion-Like Particles (ALPs), targeting Vector Boson Scattering (VBS) processes at the LHC. We consider nonresonant ALP-mediated VBS, where the ALP participates as an off-shell mediator. This process occurs whenever the ALP is too light to be produced resonantly, and it takes advantage of the derivative nature of ALP interactions with the electroweak Standard Model...

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  3. 17. Effects of squared four-fermion operators of the Standard Model Effective Field Theory on meson mixing
    Luiz Vale Silva
    28/06/2022, 17:15

    The Standard Model Effective Field Theory (SMEFT) is a universal way of parametrizing New Physics (NP) manifesting as new, heavy particle interactions with the Standard Model (SM) degrees of freedom, that respect the SM gauged symmetries. Higher order terms in the NP interactions possibly lead to sizable effects, mandatory for meaningful phenomenological studies, such as contributions to...

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  4. 37. Addressing the CKM unitarity problem with a vector-like up quark
    Pedro M. F. Pereira (Instituto Superior Tecnico)
    28/06/2022, 17:30

    We point out that hints of deviations from unitarity in the first row of the CKM matrix may be explained by the presence of a single vector-like top. We study how the stringent experimental constraints arising from CP Violation in the kaon sector and from meson mixing can be satisfied in the proposed framework. In order for the deviations from unitarity to be of the required size while keeping...

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  5. 39. CP violation in hadronic two-body D meson decays: A global fit under the SM hypothesis
    Eleftheria Solomonidi (IFIC (CSIC-Univ. of Valencia))
    28/06/2022, 17:45

    In 2019 the LHCb experiment discovered for the first time a clear signal of direct CP violation in the charm meson decays to $\pi^+\pi^-$ and $K^+K^-$, a result which is expected to be further refined in the upcoming decade. However, the theoretical SM determination of the strong part of those amplitudes remains incomplete up to date. In this work, we make use of dispersion relations to...

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  6. 22. Stabilizing the SM with Vector-like Fermions
    Tim Höhne
    28/06/2022, 18:00

    We address the notorious (meta-)stability issue of the standard model and pose it as a model building question: What does it take, in a minimally invasive way, to extend the standard model into a model that has neither poles nor instabilities up to the Planck scale?
    We point out new ways to achieve this using vector-like fermions, which correspond to BSM quarks or leptons. We identify viable...

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  7. 20. Yukawa ratios and nucleon decay fingerprints in SU(5) GUTs
    Kevin Hinze
    28/06/2022, 18:15

    We investigate the predictions for various nucleon decay rates in non-supersymmetric SU(5) models, where the masses of the third and second family down-type quarks and charged leptons each stem dominantly from single GUT operators and present a ``fingerprinting'' method to distinguish between GUT models with different flavor structure with the use of future experimental results.

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