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We investigate the information that can be gained by including flavour data in fits of the Standard Model Effective Field Theory (SMEFT) with the assumption of Minimal Flavour Violation (MFV), allowing - as initial conditions at the high…

High Energy Physics - Phenomenology · Physics 2021-01-05 Rafael Aoude , Tobias Hurth , Sophie Renner , William Shepherd

We investigate the prospects for detection of lepton flavour violation in sparticle production and decays at a Linear Collider (LC), in models guided by neutrino oscillation data. We consider both slepton pair production and sleptons…

High Energy Physics - Phenomenology · Physics 2015-05-28 E. Carquin , J. Ellis , M. E. Gomez , S. Lola

In this article, we study the renormalization group equations of the Next-to-Minimal Supersymmetric Standard Model, and investigate universality conditions on the soft supersymmetry-breaking parameters at the Grand Unification scale. We…

High Energy Physics - Phenomenology · Physics 2022-10-19 David G. Cerdeno , Valentina De Romeri , Victor Martin-Lozano , Keith A. Olive , Osamu Seto

Dirac leptogenesis (or Dirac neutrinogenesis), in which neutrinos are purely Dirac particles, is an interesting alternative to the standard leptogenesis scenario. In its supersymmetric version, the modified form of the superpotential…

High Energy Physics - Phenomenology · Physics 2008-11-26 Brooks Thomas , Manuel Toharia

The observed pattern of mixing in the neutrino sector may be explained by the presence of a non-Abelian, discrete flavour symmetry broken into residual subgroups at low energies. Many flavour models require the presence of Standard Model…

High Energy Physics - Phenomenology · Physics 2019-05-22 Lukas Heinrich , Holger Schulz , Jessica Turner , Ye-Ling Zhou

Taking the supersymmetric inverse seesaw mechanism as the explanation for neutrino oscillation data, we investigate charged lepton flavor violation in radiative and 3-body lepton decays as well as in neutrinoless $\mu-e$ conversion in…

High Energy Physics - Phenomenology · Physics 2014-11-18 A. Abada , M. E. Krauss , W. Porod , F. Staub , A. Vicente , C. Weiland

The apparent tensions emerging from the comparison of experimental data of the anomalous magnetic moments of the muon and electron to the Standard Model predictions ($\Delta a_{\mu,e}$) could be interpreted as a potential signal of New…

High Energy Physics - Phenomenology · Physics 2022-10-18 J. Kriewald , J. Orloff , E. Pinsard , A. M. Teixeira

We show how the SUSY flavour and CP problems can be solved using gauged SU(3) family symmetry previously introduced to describe quark and lepton masses and mixings, in particular neutrino tri-bimaximal mixing via constrained sequential…

High Energy Physics - Phenomenology · Physics 2009-01-06 Stefan Antusch , Stephen F. King , Michal Malinsky

The MSSM with $R$-Parity violation allows flavour changing neutral currents through two mechanisms, directly through one loop diagrams, and indirectly through the generation of flavour violation in the sparticle sector. We discuss the use…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. de Carlos , P. L. White

A non-Abelian flavour symmetry in a minimal supersymmetric standard model can explain the flavour structures in the Yukawa couplings and simultaneously solve the SUSY flavour problem. Similarly the SUSY CP problem can be solved if CP is…

High Energy Physics - Phenomenology · Physics 2010-02-23 L. Calibbi , J. Jones-Perez , A. Masiero , Jae-hyeon Park , W. Porod , O. Vives

We re-examine the constraints on continuous family symmetries coming from flavour changing neutral current limits on the D-term contributions to squark and slepton masses. We show that, for a restricted choice of the familon sector,…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. de Medeiros Varzielas , G. G. Ross

The complete analysis of the CP violation in the process $\gamma \gamma \to t \bar{t}$ in frame of the Minimal Supersymmetric Model(MSSM) is presented. The CP-odd observables for describing the CP violating effects in polarized and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Zhou Mian-Lai , Ma Wen-Gan , Han Liang , Jiang Yi , Zhou Hong

We study $b \to s \ell_1^+ \ell_2^-$ transitions, both for the lepton flavour conserving $\ell_1=\ell_2$ and violating case $\ell_1 \neq \ell_2$, in a minimal extension of the Standard Model proposed in [1]. In this framework, the Standard…

High Energy Physics - Phenomenology · Physics 2026-01-23 Pietro Colangelo , Fulvia De Fazio , Davide Milillo

After an overture and a non-technical exposition of the relevant theoretical framework including a brief discussion of some of the most popular extensions of the Standard Model, we will compile a list of 20 goals in flavour physics that…

High Energy Physics - Phenomenology · Physics 2014-11-20 Andrzej J. Buras

Lepton flavor-violating processes offer interesting possibilities to probe new physics at multi-TeV scale. We discuss those in the framework of effective field theory, emphasizing the role of gluonic operators. Those operators are obtained…

High Energy Physics - Phenomenology · Physics 2017-08-09 Alexey A. Petrov , Dmitry V. Zhuridov

We analyze electroweak baryogenesis in supersymmetric theories with flavor-dependent CP-violating phases. We generalize the standard approach to include the flavor dependence of the CP-violating sources and obtain an analytical approximate…

High Energy Physics - Phenomenology · Physics 2009-11-07 D. Delepine , R. Gonzalez Felipe , S. Khalil , A. M. Teixeira

Neutrino masses and mixings have important implications for models of fermion masses, and, most directly, for the charged lepton sector. We consider supersymmetric Abelian flavor models, where neutrino mass parameters are related to those…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jonathan L. Feng , Yosef Nir , Yael Shadmi

These proceedings introduce the main techniques and ideas for a systematic effective field theory analysis of CP violation in the charged lepton sector. This study is required because the Standard Model of particle physics predicts a very…

High Energy Physics - Phenomenology · Physics 2022-09-21 Giovanni Marco Pruna

The recent deviations of the experimental data on some parameters of the tree-level semileptonic $B$ and $B_c$ mesons decays from the standard model (SM) predictions indicate considerable violations of the lepton flavor universality, and as…

High Energy Physics - Phenomenology · Physics 2019-07-03 K. Azizi , Y. Sarac , H. Sundu

Flavour and CP violations that the neutrino-seesaw couplings of types I, II, and III induce radiatively in the soft massive parameters of the minimal supersymmetric SU(5) model, made realistic by nonrenormalizable operators, are analyzed.…

High Energy Physics - Phenomenology · Physics 2011-05-12 Francesca Borzumati , Toshifumi Yamashita
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