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Related papers: Minimal Flavour Violation and Anomalous Top Decays

200 papers

The sensitivity of the ATLAS experiment to the top-quark rare decay via flavour-changing neutral currents t --> Hq (q represents c and u quarks) has been studied at sqrt{s} = 14 TeV in the decay mode of ttbar --> HqWb --> WW*q,Wb -->l \nu l…

High Energy Physics - Experiment · Physics 2007-05-23 L. Chikovani , T. Djobava , T. Grigalashvili

The Littlest Higgs Model with T-parity (LHT) belongs to the simplest new physics scenarios with new sources of flavour and CP violation. We present a new analysis of quark observables in the LHT model in view of the oncoming flavour…

High Energy Physics - Phenomenology · Physics 2016-04-07 Monika Blanke , Andrzej J. Buras , Stefan Recksiegel

We investigate the unique potential of a high-energy muon collider to probe lepton-flavor-violating signals arising from physics beyond the Standard Model (SM). Low-energy, precision searches for charged lepton-flavor violation (LFV) are…

High Energy Physics - Phenomenology · Physics 2026-01-28 Pouya Asadi , Hengameh Bagherian , Katherine Fraser , Samuel Homiller , Qianshu Lu

We present a study to examine the sensitivity of a future $e^{-} e^{+}$ collider to the anomalous top flavour-changing neutral current (FCNC) to the gluon. To separate signal from background a multivariate analysis is performed on top-quark…

High Energy Physics - Experiment · Physics 2014-12-31 Hoda Hesari , Hamzeh Khanpour , Morteza Khatiri Yanehsari , Mojtaba Mohammadi Najafabadi

If $t\rightarrow hq$ ($q=c,u$) or $h\rightarrow\tau\ell$ ($\ell=\mu,e$) decays are observed, it will be a clear signal of new physics. We investigate whether natural and viable flavor models can saturate the present direct upper bounds…

High Energy Physics - Phenomenology · Physics 2015-01-07 Avital Dery , Aielet Efrati , Yosef Nir , Yotam Soreq , Vasja Susič

The Littlest Higgs model with T-parity (LHT) contains new sources of flavour and CP violation both in the quark and the lepton sector. They originate from the interactions of ordinary fermions with mirror fermions mediated by new gauge…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andrzej J. Buras , Cecilia Tarantino

The top quark flavor changing neutral current processes are extremely suppressed within the Standard Model. Nevertheless, they could be enhanced in a new physics model beyond the Standard Model. Investigating the top quark's flavor changing…

High Energy Physics - Phenomenology · Physics 2024-08-12 Eda Alici

A search for flavour-changing neutral-current processes in top-quark decays is presented. Data collected with the ATLAS detector from proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=13$ TeV,…

High Energy Physics - Experiment · Physics 2018-08-13 ATLAS Collaboration

Electric dipole moments and charged-lepton flavour-violating processes are extremely sensitive probes for new physics, complementary to direct searches as well as flavour-changing processes in the quark sector. Beyond the "smoking-gun"…

High Energy Physics - Phenomenology · Physics 2016-11-03 Martin Jung

Flavor-breaking interactions due to heavy new physics can be probed at a 10 TeV muon collider in the high-energy production of quarks and leptons. The high collision energy mitigates the suppression of the new interactions, offering…

High Energy Physics - Phenomenology · Physics 2025-12-23 Alfredo Glioti , David Marzocca , Andrea Wulzer

This note reviews recent theoretical developments in the study of charged lepton flavour violation. The first part illustrates the status of precise next-to-leading order quantum electrodynamics calculations for the background of charged…

High Energy Physics - Phenomenology · Physics 2017-05-22 Giovanni Marco Pruna

We discuss several manifestations of charged lepton flavour violation at high energies. Focusing on a supersymmetric type I seesaw, considering constrained and semi-constrained supersymmetry breaking scenarios, we analyse different…

High Energy Physics - Phenomenology · Physics 2015-03-03 A. M. Teixeira , A. Abada , A. J. R. Figueiredo , J. C. Romao

Here I review the status and prospects of experimental investigations into lepton flavor violation (LFV) in charged leptons. Rare LFV processes are naturally expected to occur through loops of TeV scale particles predicted by supersymmetric…

High Energy Physics - Experiment · Physics 2008-11-26 Toshinori Mori

This decade should provide the first definitive signals of New Physics (NP) beyond the Standard Model (SM) and the goal of these lectures is a review of flavour physics in various extensions of the SM that have been popular in the last ten…

High Energy Physics - Phenomenology · Physics 2015-03-17 Andrzej J. Buras

We show that one can explain the neutral and charged anomalies in B-meson decays in the minimal theory for quark-lepton unification.The implications for flavor violating processes are discussed in detail. Strikingly, experimental…

High Energy Physics - Phenomenology · Physics 2022-09-13 Pavel Fileviez Perez , Clara Murgui

In these proceedings we review the flavour phenomenology of 2HDMs with generic Yukawa structures. We first consider the quark sector and find that despite the stringent constraints from FCNC processes large effects in tauonic B decays are…

High Energy Physics - Phenomenology · Physics 2022-08-09 Andreas Crivellin , Christoph Greub , Ahmet Kokulu

This paper investigates the effects of parameters in the Bestest Little Higgs Model (BLHM) on rare flavor-changing decays of the top quark. As a result, flavor-changing phenomena are introduced in the BLHM for the first time. In this study,…

High Energy Physics - Phenomenology · Physics 2023-06-30 T. Cisneros-Pérez , M. A. Hernández-Ruíz , A. Gutiérrez-Rodríguez , E. Cruz-Albaro

We study low energy constraints from flavour violating processes, production and decay at the LHC of a scalar field varphi (flavon) associated to the breaking of a non-supersymmetric Abelian family symmetry at the TeV scale. This symmetry…

High Energy Physics - Phenomenology · Physics 2010-03-26 Koji Tsumura , Liliana Velasco-Sevilla

We investigate the prospects for discovering a top quark decaying into one light Higgs boson along with a charm quark in top quark pair production at the CERN Large Hadron Collider (LHC). A general two Higgs doublet model is adopted to…

High Energy Physics - Phenomenology · Physics 2015-06-03 Chung Kao , Hai-Yang Cheng , Wei-Shu Hou , Joshua Sayre

Flavour symmetries in the dark sector are a theoretically motivated and phenomenologically appealing concept. The dark matter particle can be stabilised with the help of flavour symmetries, without the need to introduce an additional…

High Energy Physics - Phenomenology · Physics 2015-08-26 Monika Blanke