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Related papers: The Anatomy of Quark Flavour Observables in 331 Mo…

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Flavour physics plays a central role in the search for physics beyond the Standard Model, posing fundamental questions whose answers may point to new physics scales far above the electroweak scale. The flavour structure of the Standard…

High Energy Physics - Phenomenology · Physics 2025-08-07 Wolfgang Altmannshofer , Peter Stangl

We review the recent highlights of theoretical flavour physics, based on the theory summary talk given at FPCP2017. Over the past years, a number of intriguing anomalies have emerged in flavour violating $K$ and $B$ meson decays,…

High Energy Physics - Phenomenology · Physics 2017-08-31 Monika Blanke

We review constraints from quark and lepton flavor violation on extra dimensional models with warped geometry, both in the minimal and the custodial model. For both scenarios, KK masses that are large enough to suppress constraints from…

High Energy Physics - Phenomenology · Physics 2013-11-12 Gero von Gersdorff

Our knowledge of quark-flavor physics and CP violation increased tremendously over the past five years. It is confirmed that the Standard Model correctly describes the dominant parts of the observed CP-violating and flavor-changing…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andreas Hocker , Zoltan Ligeti

New relations between the quark spin-flavor contents of the nucleon and axial weak coupling constants are obtained in the chiral quark model with both SU(3) and U(1)-breaking effects. Using the nonsinglet spin combinations, $\Delta_3$ and…

High Energy Physics - Phenomenology · Physics 2009-10-30 X. Song

We classify the extensions of the Standard Model (SM) according to the structure of local operators in the weak effective Hamiltonian and the presence or absence of new flavour and CP-violating interactions beyond those represented by the…

High Energy Physics - Phenomenology · Physics 2015-06-25 Andrzej J. Buras

We observe that a recently proposed supersymmetric model with Q6 flavor symmetry admits a new CP violating ground state. A new sum rule for the quark mixing parameters emerges, which is found to be consistent with data. Simple extensions of…

High Energy Physics - Phenomenology · Physics 2011-05-25 K. S. Babu , Kenji Kawashima , Jisuke Kubo

We confront the new physics models with extra iso-singlet down quarks in the new CP violation experimental era with $\sin{(2\beta)}$ and $\epsilon'/\epsilon$ measurements, $K^+ \to \pi^+ \nu \bar{\nu}$ events, and $x_s$ limits. The…

High Energy Physics - Phenomenology · Physics 2010-11-23 Donovan Hawkins , Dennis Silverman

Motivated by the recently improved lattice QCD results on the hadronic matrix elements entering $\Delta M_{s,d}$ in $B_{s,d}^0-\bar B_{s,d}^0$ mixings and the resulting increased tensions between $\Delta M_{s,d}$ and $\varepsilon_K$ in the…

High Energy Physics - Phenomenology · Physics 2016-09-21 Andrzej J. Buras , Fulvia De Fazio

Rare decays of B and K mesons and CP violations thereof are considered in SUSY models with S_3^3 flavor symmetry. SUSY contributions to epsilon_K and epsilon'/epsilon_K can be large, but not to B0 - B0 bar mixing because of strong…

High Energy Physics - Phenomenology · Physics 2009-11-07 P. Ko , Jae-hyeon Park

We review a model of quark flavoured dark matter with new flavour violating interactions. This simplified model describes Dirac fermionic dark matter that is charged under a new U(3) flavour symmetry and couples to right-handed down quarks…

High Energy Physics - Phenomenology · Physics 2014-12-12 Monika Blanke

The 331 model with right-handed neutrinos is re-assessed to investigate the CP violation in the quark sector. After the spontaneous symmetry breaking, the masses and physical fields of the particle content are obtained. The fermions content…

High Energy Physics - Phenomenology · Physics 2021-03-04 M. J. Neves

These lecture notes provide an introduction to the theoretical concepts of flavour physics and CP violation, based on a series of lectures given at the ESHEP 2016 summer school. In the first lecture we review the basics of flavour and CP…

High Energy Physics - Phenomenology · Physics 2017-04-20 Monika Blanke

The B^0_s meson is a bound state of b and s type quarks. A CP violation parameter, \beta_s, of that system is the analogue of the parameter \beta measured precisely at the B factories in B^0 decays. The standard model predicts, robustly and…

High Energy Physics - Experiment · Physics 2009-03-19 J. Boudreau

We identify new room for CP violation in lepton flavor violating observables not bound by the electric dipole moment of leptons. By focusing on new physics in the muon-electron sector, we show that CP violation can make its first appearance…

High Energy Physics - Phenomenology · Physics 2024-08-05 Diego Redigolo , Michele Tammaro , Andrea Tesi

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

Recent measurements of time dependent CP asymmetry in B --> phi K_S, if confirmed, would indicate a new source of CP violation. We examine flavor violating tree-level Z currents in models with extra down-type quark singlets that arise…

High Energy Physics - Phenomenology · Physics 2014-11-17 N. G. Deshpande , D. K. Ghosh

We present an extensive analysis of gauge-mediated supersymmetry breaking models with minimal and non-minimal flavour violation. We first demonstrate that low-energy, precision electroweak, and cosmological constraints exclude large…

High Energy Physics - Phenomenology · Physics 2009-01-14 B. Fuks , B. Herrmann , M. Klasen

Combining Pati-Salam (PS) and flavour symmetries in a renormalisable setup, we devise a scenario which produces realistic masses for the charged leptons. Flavour-symmetry breaking scalar fields in the adjoint representations of the PS gauge…

High Energy Physics - Phenomenology · Physics 2016-12-21 Thorsten Feldmann , Christoph Luhn , Paul Moch

These lectures give an up to date description of CP violation and rare decays of K and B mesons and consist of ten chapters: i) Grand view of the field including CKM matrix and the unitarity triangle, ii) General aspects of the theoretical…

High Energy Physics - Phenomenology · Physics 2017-08-23 Andrzej J. Buras