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Related papers: Indirect searches for New Physics via flavour obse…

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A natural solution to the hierarchy problem of the Fermi scale motivates signals of New Physics at current and near future experiments. After a critical synthesis of this general motivation, we concentrate our attention on the interplay…

High Energy Physics - Phenomenology · Physics 2016-04-06 Filippo Sala

We consider an extension of the Standard Model with three right-handed neutrinos, endowed with a flavour symmetry $G_f$, $G_f=\Delta (3 \, n^2)$ or $G_f=\Delta (6 \, n^2)$, $n \geq 2$, and CP. For large active-sterile mixing, we study the…

High Energy Physics - Phenomenology · Physics 2024-12-16 Marco Drewes , Yannis Georis , Claudia Hagedorn , Juraj Klaric

Motivated by recent experimental measurements on flavour physics, in tension with Standard Model predictions, we perform an updated analysis of New Physics violating Lepton Flavour Universality, by using the effective Lagrangian approach…

High Energy Physics - Phenomenology · Physics 2019-09-04 Jorge Alda , Jaume Guasch , Siannah Peñaranda

Recent development in exploring flavour dynamics in the supersymmetric extension of the Standard Model is reviewed. Emphasis is put on possible interesting effects in b-physics arising for large values of tan beta both in the case of…

High Energy Physics - Phenomenology · Physics 2014-11-17 P. H. Chankowski , J. Rosiek

Flavour-violating decays are some of the most sensitive probes for New Physics with masses below the B meson threshold. In this talk I review the sensitivity to axion-like particles, hidden photons and heavy neutral leptons assuming minimal…

High Energy Physics - Phenomenology · Physics 2024-04-02 Martin Bauer

In recent years, the LHCb collaboration has published results on the measurement of several observables associated to semileptonic $b \to s$ transitions. Interestingly, various deviations from their expected values in the Standard Model…

High Energy Physics - Phenomenology · Physics 2018-12-10 Avelino Vicente

In the framework of the Standard Model Effective Field Theory, we compare the lower bounds on the scale of new physics possibly contributing to the $f\bar{f}h$ effective couplings, obtained from the measurements of different observables,…

High Energy Physics - Phenomenology · Physics 2022-05-25 J. Alonso-Gonzalez , A. de Giorgi , L. Merlo , S. Pokorski

We examine the constraints coming from incorporating the full Standard Model gauge symmetry into the effective field theory description of flavor processes, using semileptonic decays as paradigmatic examples. Depending on the dynamics…

High Energy Physics - Phenomenology · Physics 2015-09-23 Oscar Catà , Martin Jung

Since the discovery of neutrino oscillations it is known that lepton flavour is not conserved. Lepton flavour violating processes in the charged lepton sector have so far however eluded detection; as they are heavily suppressed in the…

High Energy Physics - Experiment · Physics 2013-02-11 Niklaus Berger

We address the phenomenological impact of a well-motivated class of scotogenic models regarding flavour and electroweak precision observables. In particular, and for the case of a ``T1-2-A'' variant, we carry out a full computation of the…

High Energy Physics - Phenomenology · Physics 2025-07-01 A. Darricau , H. Lee , J. Orloff , A. M. Teixeira

Charged lepton flavor violation is an unambiguous signature for New Physics. Here we present a summary of the theoretical and experimental status of the search for charged lepton flavor violation in heavy particle decays, in particular in…

High Energy Physics - Phenomenology · Physics 2022-05-24 Wolfgang Altmannshofer , Cecile Caillol , Mogens Dam , Stefania Xella , Yongchao Zhang

We examine how light neutrinos coming from distant active galactic nuclei (AGN) and similar high energy sources may be used as tools to probe non-standard physics. In particular we discuss how studying the energy spectra of each neutrino…

High Energy Physics - Phenomenology · Physics 2014-11-21 Atri Bhattacharya , Sandhya Choubey , Raj Gandhi , Atsushi Watanabe

Quark and lepton flavor physics presents us with a basic question: Can we understand the pattern of masses and mixings of the known quarks and leptons, and how do present and proposed measurements help to advance that goal? Topics discussed…

High Energy Physics - Phenomenology · Physics 2013-10-02 Jonathan L. Rosner

Supersymmetry is one of the most plausible extensions of the Standard Model, since it is well motivated by the hierarchy problem, supported by measurements of the gauge coupling strengths, consistent with the suggestion from precision…

High Energy Physics - Phenomenology · Physics 2007-05-23 John Ellis

The muon has been instrumental in establishing the Standard Model of particle physics and continues to play a key role in exploring the nature of New Physics. A global program is underway to enhance the discovery potential of a wide range…

High Energy Physics - Phenomenology · Physics 2026-02-16 Bertrand Echenard , Alexey A. Petrov

We study the intersection of flavour and collider physics for Two-Higgs-Doublet models of Type I and II. Drawing from the flavour precision-LHC exotics search complementarity, we also provide a projection of the future sensitivity that can…

High Energy Physics - Phenomenology · Physics 2022-12-14 Oliver Atkinson , Matthew Black , Christoph Englert , Alexander Lenz , Aleksey Rusov , James Wynne

This talk highlights, from a theoretical point of view, some recent exciting results in flavor physics, as well as future prospects. We discuss possible implications of a subset of the experimental results in tension with the standard…

High Energy Physics - Phenomenology · Physics 2016-06-21 Zoltan Ligeti

We perform a global statistical analysis of the two-Higgs-doublet model with generic sources of flavour violation using \textsf{GAMBIT}. This is particularly interesting in light of deviations from the Standard Model predictions observed in…

High Energy Physics - Phenomenology · Physics 2024-11-27 Peter Athron , Andreas Crivellin , Tomás E. Gonzalo , Syuhei Iguro , Cristian Sierra

We propose a framework that links the origin of the Standard Model flavour hierarchies to the generation of asymmetric dark matter via leptogenesis. The key new ingredient is a gauged $SO(3)$ flavour symmetry acting on both the visible and…

High Energy Physics - Phenomenology · Physics 2026-05-21 Mattias Blennow , Enrique Fernandez-Martinez , David Garcia-Garcia , Javier M. Lizana

While the LHC has not directly observed any new particle so far, experimental results from LHCb, BELLE and BABAR point towards the violation of lepton flavour universality in $b\to s\ell^{+}\ell^{-}$ and $b\to c\ell\nu$. In this context,…

High Energy Physics - Phenomenology · Physics 2018-06-13 Dario Müller