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Related papers: Flavor Constraints from Unitarity and Analyticity

200 papers

We present comprehensive global fits of the SMEFT under the $\textit{minimal}$ minimal flavour violation (MFV) hypothesis, i.e. assuming that only the flavour-symmetric and CP-invariant operators are relevant at the high scale. The…

High Energy Physics - Phenomenology · Physics 2023-12-07 Riccardo Bartocci , Anke Biekötter , Tobias Hurth

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 construct an extension of the Standard Model with a scalar leptoquark $\phi \sim (3,1,-\tfrac13)$ and the discrete flavour symmetry $G_f=D_{17}\times Z_{17}$ to explain anomalies observed in charged-current semi-leptonic $B$ meson decays…

High Energy Physics - Phenomenology · Physics 2023-10-23 Innes Bigaran , Tobias Felkl , Claudia Hagedorn , Michael A. Schmidt

Pursuing a bottom-up approach to explore which flavor symmetry could serve as an explanation of the observed fermion masses and mixings, we discuss an extension of the standard model (SM) where the flavor structure for both quarks and…

High Energy Physics - Phenomenology · Physics 2011-05-05 C. Hagedorn , M. Lindner , R. N. Mohapatra

We reassess non-standard triple gauge couplings in the light of the recent $(g-2)_\mu$ measurement at FNAL, the new lattice theory result of $(g-2)_\mu$ and the updated measurements of several $B$-decay modes. In the framework of SMEFT,…

High Energy Physics - Phenomenology · Physics 2023-01-04 Debajyoti Choudhury , Kuldeep Deka , Suvam Maharana , Lalit Kumar Saini

We construct an anomaly-free extension of the left-right symmetric model, where the maximal flavor group is gauged and anomaly cancellation is guaranteed by adding new vectorlike fermion states. We address the question of the lowest allowed…

High Energy Physics - Phenomenology · Physics 2011-06-16 Diego Guadagnoli , Rabindra N. Mohapatra , Ilmo Sung

Updated standard model predictions for $D_{(s)} \to P l^+ l^-$, $l=e,\mu$, $P=\pi,K$ and inclusive decays are presented. Model-independent constraints on $|\Delta C|=|\Delta U|=1$ Wilson coefficients are worked out. New physics (NP)…

High Energy Physics - Phenomenology · Physics 2016-04-06 Stefan de Boer , Gudrun Hiller

In the coming years, experiments underway will increase the sensitivity to charged lepton flavor violation by four orders of magnitude. These experiments will stringently probe weak scale physics. I review the status of global symmetries in…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jonathan L. Feng

We have considered a general 5D warped model with SM fields propagating in the bulk and computed explicit expressions for oblique and non-oblique electroweak observables as well as for flavor and CP violating effective four-fermion…

High Energy Physics - Phenomenology · Physics 2015-05-30 Joan A. Cabrer , Gero von Gersdorff , Mariano Quiros

Beyond Standard Model physics frequently connects flavor symmetry with a discrete group. If the discrete symmetry arises spontaneously from a gauge theory, one can maintain compatibility with quantum gravity and avoid anomalies. We provide…

High Energy Physics - Phenomenology · Physics 2018-12-18 Bradley L. Rachlin , Thomas W. Kephart

In this paper we consider an $S^{1}/\mathbb{Z}_2$ compactified flat extra dimensional scenario where all the standard model states can access the bulk and have generalised brane localised kinetic terms. The flavour structure of brane…

High Energy Physics - Phenomenology · Physics 2018-09-07 Sayan Dasgupta , Ujjal Kumar Dey , Tapoja Jha , Tirtha Sankar Ray

The flavor structure of quarks and leptons is not yet fully understood, but it hints a more fundamental theory of non-universal generations. We therefore propose a simple extension of the Standard Model by flipping (i.e., enlarging) the…

High Energy Physics - Phenomenology · Physics 2024-07-09 Duong Van Loi , Phung Van Dong , N. T. Duy , Nguyen Huy Thao

We study four-dimensional conformal field theories with an $SU(N)$ global symmetry by employing the numerical conformal bootstrap. We consider the crossing relation associated with a four-point function of a spin~$0$…

High Energy Physics - Theory · Physics 2016-06-21 Hisashi Iha , Hiroki Makino , Hiroshi Suzuki

There are experimental indications of large flavor mixing between $\nu_{\mu }$ and $\nu_{\tau}$. In the unification models, in which the massless sector includes extra particles beyond the standard model, there possibly appear the mixings…

High Energy Physics - Phenomenology · Physics 2009-10-30 N. Haba , T. Matsuoka

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.…

High Energy Physics - Phenomenology · Physics 2024-03-14 Luiz Vale Silva

We propose new mechanisms for ameliorating the constraints on the Kaluza-Klein (KK) mass scale from charged lepton flavor violation in the framework of the Standard Model (SM) fields propagating in a warped extra dimension, especially in…

High Energy Physics - Phenomenology · Physics 2010-04-21 Kaustubh Agashe

We present an overview of the indirect constraints from flavor physics on supersymmetric models. During the past few years flavor data, and in particular b -> s gamma transitions, have been extensively used in order to constrain…

High Energy Physics - Phenomenology · Physics 2009-02-02 F. Mahmoudi

The purpose of these lectures is to provide the reader with an idea of how we can probe New Physics with quark flavour observables using effective theory techniques. After giving a concise review of the quark flavour structure of the…

High Energy Physics - Phenomenology · Physics 2021-05-03 Luca Silvestrini

We study the predictions for sfermion masses and Lepton Flavour Violation (LFV) for the WMAP preferred parameter space in $b-\tau$ Yukawa-unified models with massive neutrinos. A soft term structure as predicted by an Abelian flavour…

High Energy Physics - Phenomenology · Physics 2015-03-13 M. E. Gómez , S. Lola , P. Naranjo , J. Rodríguez-Quintero

In the present work we review the most prominent lepton flavor violating processes ($\mu \ra e\gamma$, $\mu \ra 3e$, $(\mu , e)$ conversion, $M-\bar M$ oscillations etc), in the context of unified gauge theories. Many currently fashionable…

High Energy Physics - Phenomenology · Physics 2011-07-19 T. S. Kosmas , G. K. Leontaris , J. D. Vergados