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Related papers: Lepton Flavor in Composite Higgs Models

200 papers

Among the different scenarios of New Physics, those with an extended Higgs sector are examined with a lot of attention. Recent experimental observations of several anomalies in flavour physics with respect to expectations of the Standard…

High Energy Physics - Lattice · Physics 2018-04-18 Gabriela Bailas , Benoît Blossier , Jochen Heitger , Vincent Morénas , Matthias Post

It is demonstrated that accounting for lepton flavor universality violating anomalies in $B$ meson decays via $Z'$ models implies a Landau pole problem. A family of models is proposed that resolve both issues simultaneously, fix the…

High Energy Physics - Phenomenology · Physics 2022-05-16 Tom Steudtner

We study possible impact of dark photons on lepton flavor phenomenology. We derive the constraints on non-diagonal dark photon couplings with leptons by analyzing corresponding contributions to lepton anomalous magnetic moments, rare lepton…

High Energy Physics - Phenomenology · Physics 2023-12-20 Alexey S. Zhevlakov , Dmitry V. Kirpichnikov , Valery E. Lyubovitskij

We discuss the proper starting point to look into flavor physics under the perspective of solving the hierarchy problem with the little Higgs mechanism -- the construction of anomaly free fermionic spectra of the effective theory of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Otto C. W. Kong

We analyse the lepton sector of the Left-Right Twin Higgs Model. This model offers an alternative way to solve the "little hierarchy" problem of the Standard Model. We show that one can achieve an effective see-saw to explain the origin of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Asmaa Abada , Irene Hidalgo

In supersymmetric scenarios, the seesaw mechanism involving heavy right-handed neutrinos implies sizable lepton flavor violation (LFV) in the slepton sector. We discuss the potential of detecting LFV processes at the LHC in mSUGRA+seesaw…

High Energy Physics - Phenomenology · Physics 2007-10-15 Frank Deppisch

We examine the parameter space region of the inverse seesaw model that is consistent with neutrino oscillation data. We focus on the correlation between the current limits from the search of the $\mu\to e\gamma$ lepton flavor violating…

High Energy Physics - Phenomenology · Physics 2023-08-28 J. C. Garnica , G. Hernández-Tomé , E. Peinado

Uncovering the physics of electroweak symmetry breaking (EWSB) is the raison-d'etre of the LHC. Flavor questions, it would seem, are of minor relevance for this quest, apart from their role in constraining the possible structure of EWSB…

High Energy Physics - Phenomenology · Physics 2015-06-03 Yael Shadmi

The Little Higgs model with T-parity (LHT) belongs to the non-minimal flavour violating model. This model has new sources of flavour and CP violation both in quark and leptonic sectors. These new sources of flavour violation originates by…

High Energy Physics - Phenomenology · Physics 2009-07-30 Naveen Gaur

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

Lepton flavor violating Higgs boson decays (LFVHD) are studied in the context of the Minimal Supersymmetric Standard Model (MSSM) enlarged with three right handed neutrinos and their supersymmetric partners, and with the neutrino masses…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Arganda , A. M. Curiel , M. J. Herrero , D. Temes

Leptoquarks with masses at the TeV scale have been proposed as possible solutions to flavor anomalies reported in the b-flavor sector. Based on data taken in proton-proton collisions at $\sqrt{s} = 13\,\mathrm{TeV}$ at the LHC, different…

High Energy Physics - Experiment · Physics 2021-11-24 Arne Christoph Reimers

The study of lepton flavor universality violation (LFUV) in semitauonic $b$-hadron decays has become increasingly important in light of longstanding anomalies in their measured branching fractions, and the very large datasets anticipated…

High Energy Physics - Experiment · Physics 2022-12-07 Florian U. Bernlochner , Manuel Franco Sevilla , Dean J. Robinson , Guy Wormser

Recent results from the LHC's first run have revealed intriguing departures from lepton flavour universality in the semi-leptonic decays of $B$-mesons. We discuss the complementary role that rare kaon decays can provide in testing new…

High Energy Physics - Phenomenology · Physics 2017-04-05 Lewis C. Tunstall , Andreas Crivellin , Giancarlo D'Ambrosio , Martin Hoferichter

Taking into account the constraints on the free parameters of the littlest Higgs model with T-parity (called $LHT$ model) from some rare decay processes, such as $\mu\rightarrow e\gamma$ and $\mu\rightarrow 3e$, we consider the…

High Energy Physics - Phenomenology · Physics 2010-12-23 Wei Ma , Chong-Xing Yue , Jiao Zhang , Yan-Bin Sun

In this review article, we highlight the impact of models incorporating flavour symmetries on charged lepton flavour violating (LFV) processes. Flavour symmetries provide a natural approach to explain the peculiar mass hierarchies and…

High Energy Physics - Phenomenology · Physics 2015-06-05 Frank F. Deppisch

We present a comprehensive numerical analysis of a four-dimensional model with the Higgs as a composite pseudo-Nambu-Goldstone boson that features a calculable Higgs potential and protective custodial and flavour symmetries to reduce…

High Energy Physics - Phenomenology · Physics 2016-02-17 Christoph Niehoff , Peter Stangl , David M. Straub

Lepton flavor violating interactions are absent in the standard model but are expected in various beyond standard models. In this work, the potential of the future circular electron-positron collider to probe the four fermion lepton flavor…

High Energy Physics - Phenomenology · Physics 2021-09-28 S. M. Etesami , R. Jafari , M. Mohammadi Najafabadi , S. Tizchang

Here I summarize some of the salient features of technicolor theories with technifermions in higher dimensional representations of the technicolor gauge group. The expected phase diagram as function of number of flavors and colors for the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Francesco Sannino

Lepton flavor violating Higgs boson decays (LFVHD) are studied in the context of the Minimal Supersymmetric Standard Model (MSSM) being embeded in a mSUGRA scenario that is enlarged with three right handed neutrinos and their supersymmetric…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Arganda , A. M. Curiel , M. J. Herrero , D. Temes