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One of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor and measurements and theoretical interpretations of their results have advanced tremendously: apart from masses and…

High Energy Physics - Phenomenology · Physics 2014-11-20 M. Antonelli , D. M. Asner , D. Bauer , T. Becher , M. Beneke , A. J. Bevan , M. Blanke , C. Bloise , M. Bona , A. Bondar , C. Bozzi , J. Brod , A. J. Buras , N. Cabibbo , A. Carbone , G. Cavoto , V. Cirigliano , M. Ciuchini , J. P. Coleman , D. P. Cronin-Hennessy , J. P. Dalseno , C. H. Davies , F. DiLodovico , J. Dingfelder , Z. Dolezal , S. Donati , W. Dungel , U. Egede , G. Eigen , R. Faccini , T. Feldmann , F. Ferroni , J. M. Flynn , E. Franco , M. Fujikawa , I. K. Furic , P. Gambino , E. Gardi , T. J. Gershon , S. Giagu , E. Golowich , T. Goto , C. Greub , C. Grojean , D. Guadagnoli , U. A. Haisch , R. F. Harr , A. H. Hoang , T. Hurth , G. Isidori , D. E. Jaffe , A. Jüttner , S. Jäger , A. Khodjamirian , P. Koppenburg , R. V. Kowalewski , P. Krokovny , A. S. Kronfeld , J. Laiho , G. Lanfranchi , T. E. Latham , J. Libby , A. Limosani , D. Lopes Pegna , C. D. Lu , V. Lubicz , E. Lunghi , V. G. Lüth , K. Maltman , W. J. Marciano , E. C. Martin , G. Martinelli , F. Martinez-Vidal , A. Masiero , V. Mateu , F. Mescia , G. Mohanty , M. Moulson , M. Neubert , H. Neufeld , S. Nishida , N. Offen , M. Palutan , P. Paradisi , Z. Parsa , E. Passemar , M. Patel , B. D. Pecjak , A. A. Petrov , A. Pich , M. Pierini , B. Plaster , A. Powell , S. Prell , J. Rademaker , M. Rescigno , S. Ricciardi , P. Robbe , E. Rodrigues , M. Rotondo , R. Sacco , C. J. Schilling , O. Schneider , E. E. Scholz , B. A. Schumm , C. Schwanda , A. J. Schwartz , B. Sciascia , J. Serrano , J. Shigemitsu , I. J. Shipsey , A. Sibidanov , L. Silvestrini , F. Simonetto , S. Simula , C. Smith , A. Soni , L. Sonnenschein , V. Sordini , M. Sozzi , T. Spadaro , P. Spradlin , A. Stocchi , N. Tantalo , C. Tarantino , A. V. Telnov , D. Tonelli , I. S. Towner , K. Trabelsi , P. Urquijo , R. S. Van de Water , R. J. Van Kooten , J. Virto , G. Volpi , R. Wanke , S. Westhoff , G. Wilkinson , M. Wingate , Y. Xie , J. Zupan

We study quark and lepton flavor structures on magnetized $T^2/\mathbb{Z}_2$ twisted orbifold model. There are 6,460 number of flavor models but most of them cannot lead to realistic flavor observables because of the difficulties on…

High Energy Physics - Phenomenology · Physics 2024-03-27 Shota Kikuchi

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

We argue that in certain models with family symmetries the implementation of the alignment mechanism for the supression of the flavor changing neutral currents requires mass matrices with holomorphic zeros in the down quark sector.…

High Energy Physics - Phenomenology · Physics 2009-10-31 Nikolaos Irges

We analyze the bounds on the spectrum of composite Higgs models (CHM) that come from flavor observables, by means of simple two-site effective Lagrangians, which incorporate a custodial symmetry and a Left-Right parity and which could also…

High Energy Physics - Phenomenology · Physics 2012-12-06 Natascia Vignaroli

We investigate the phenomenology of flavored dark matter (DM). DM stability is guaranteed by an accidental ${\mathcal Z}_3$ symmetry, a subgroup of the standard model (SM) flavor group that is not broken by the SM Yukawa interactions. We…

High Energy Physics - Phenomenology · Physics 2016-01-27 Fady Bishara , Admir Greljo , Jernej F. Kamenik , Emmanuel Stamou , Jure Zupan

If the LHC should fail to observe direct signals for new physics, it may become necessary to look for new physics effects in rare events such as flavour-changing decays of the top quark, which, in the Standard Model, are predicted to be too…

High Energy Physics - Phenomenology · Physics 2016-08-09 Debjyoti Bardhan , Gautam Bhattacharyya , Diptimoy Ghosh , Monalisa Patra , Sreerup Raychaudhuri

Multi Higgs doublet models are interesting extensions of the Standard Model that can be related to flavor. The reason is that most flavor models usually involve the presence of several additional scalar fields. In this work we present an…

High Energy Physics - Phenomenology · Physics 2012-09-18 Alfredo Aranda , Cesar Bonilla , J. Lorenzo Diaz-Cruz

In strong dynamical schemes for electroweak symmetry breaking the third generation must be treated in a special manner, owing to the heavy top quark. This potentially leads to new flavor physics involving the members of the third generation…

High Energy Physics - Phenomenology · Physics 2009-10-09 G. Buchalla , G. Burdman , C. T. Hill , D. Kominis

Electroweak precision data constraints on flavor symmetric vector fields are determined. The flavor multiplets of spin one that we examine are the complete set of fields that couple to quark bi-linears at tree level while not initially…

High Energy Physics - Phenomenology · Physics 2012-01-12 Benjamín Grinstein , Christopher W. Murphy , Michael Trott

Top quark and Higgs boson decays induced by flavor-changing neutra currents (FCNC) are very much suppressed in the Standard Model (SM). Their detection in colliders like the Large Hadron Collider (LHC), Next Linear Collider (NLC) or…

High Energy Physics - Phenomenology · Physics 2009-11-10 R. Gaitan , O. G. Miranda , L. G. Cabral-Rosetti

We construct a supersymmetric theory of flavor based on the discrete gauge group (D_6)^2, where D_6 describes the symmetry of a regular hexagon under proper rotations in three dimensions. The representation structure of the group allows one…

High Energy Physics - Phenomenology · Physics 2014-11-17 Christopher D. Carone , Richard F. Lebed

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

These notes are based on the lectures I gave at the 2015 European School of High-Energy Physics (ESHEP2015). I discuss 1) flavor physics within the Standard Model, 2) effective field theories and Minimal Flavor Violation, 3) flavor physics…

High Energy Physics - Phenomenology · Physics 2018-05-08 Stefania Gori

We present a search for flavor changing neutral currents via quark-gluon couplings in a sample of single top quark final states corresponding to 2.3 fb^-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron…

High Energy Physics - Experiment · Physics 2010-09-28 D0 Collaboration , V. Abazov

A simple formalism to describe flavor and CP violation in a model independent way is provided. Our method is particularly useful to derive robust bounds on models with arbitrary mechanisms of alignment. Known constraints on flavor violation…

High Energy Physics - Phenomenology · Physics 2010-10-08 Oram Gedalia , Lorenzo Mannelli , Gilad Perez

A search for flavor-changing neutral current interactions of the top quark (t) and the Higgs boson (H) is presented. The search is based on proton-proton collision data collected in 2016-2018 at a center-of-mass energy of 13 TeV with the…

High Energy Physics - Experiment · Physics 2025-08-22 CMS Collaboration

We examine the prospects for the detection of Higgs mediated lepton flavor violation at LHC and at a photon collider in the minimal supersymmetric standard model with large lepton flavor violating mass insertions in the $\mu-\tau$ sector…

High Energy Physics - Phenomenology · Physics 2010-12-01 M. Cannoni , O. Panella

We investigate flavor violation mediated by Higgs bosons and supersymmetric particles in a predictive class of models based on the non-Abelian flavor symmetry Q_6. These models, which aim to reduce the number of parameters of the fermion…

High Energy Physics - Phenomenology · Physics 2009-11-06 K. S. Babu , Yanzhi Meng

Multi-Higgs doublet models appear in many interesting extensions of the standard model (SM). But they suffer from Higgs-mediated flavor changing neutral current (FCNC) problem which is very generic. In this talk, I describe that this…

High Energy Physics - Phenomenology · Physics 2015-06-18 P. Ko , Yuji Omura , Chaehyun Yu