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Related papers: LHC Benchmarks from Flavored Gauge Mediation

200 papers

We explore signatures related to squark decays in the framework of non-minimally flavour-violating Supersymmetry. We consider a simplified model where the lightest squark consists of an admixture of charm and top flavour. By recasting the…

High Energy Physics - Phenomenology · Physics 2019-02-05 Amit Chakraborty , Motoi Endo , Benjamin Fuks , Björn Herrmann , Mihoko M. Nojiri , Priscilla Pani , Giacomo Polesello

We investigate the heavy flavor dynamics in the quark-gluon plasma (QGP) medium created in p-Pb collisions at the CERN Large Hadron Collider (LHC). In the (3+1)-dimensional viscous hydrodynamics model describing QGP medium, the dynamics of…

The physics underlying quark and lepton masses and mixings (the "flavor problem") is the least well understood aspect of the Standard Model. Some questions of flavor physics, and ways in which the LHC can help shed light on this problem,…

High Energy Physics - Phenomenology · Physics 2014-11-20 Jonathan L. Rosner

A scenario is presented where the $s$, $c$, and $b$ quark fusion Higgs production cross sections are enhanced with respect to those of the Standard Model. In particular the $c$ quark fusion production is very important and can account for a…

High Energy Physics - Phenomenology · Physics 2011-07-04 Alfredo Aranda , J. Lorenzo Diaz-Cruz , Alfonso Rosado

We explore several novel LHC signatures arising from quark or lepton flavor violating couplings in the Higgs sector, and we constrain such couplings using LHC data. Since the largest signals are possible in channels involving top quarks or…

High Energy Physics - Phenomenology · Physics 2016-07-26 Malte Buschmann , Joachim Kopp , Jia Liu , Xiao-Ping Wang

In Randall-Sundrum models with gauge bosons and fermions in the extra dimensional bulk, it is possible to build models of flavor by localizing the fermions in the extra dimension. Since the Higgs must be localized at or close to the TeV…

High Energy Physics - Phenomenology · Physics 2008-11-26 Priscila M. Aquino , Gustavo Burdman , Oscar J. P. Eboli

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

We discuss the possibility that flavor hierarchies arise from the electroweak scale in a two Higgs doublet model, in which the two Higgs doublets jointly act as the flavon. Quark masses and mixing angles are explained by effective Yukawa…

High Energy Physics - Phenomenology · Physics 2015-06-08 Martin Bauer , Marcela Carena , Katrin Gemmler

We discuss the conditions under which the flavor structure of SUSY model induces, either radiatively or through mixing, new flavor-violating interactions in the Higgs sector. The radiative flavor mediation mechanism is illustrated using the…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Lorenzo Diaz-Cruz

We explore a novel flavor structure in the interactions of dark matter with the Standard Model. We consider theories in which both the dark matter candidate, and the particles that mediate its interactions with the Standard Model fields,…

High Energy Physics - Phenomenology · Physics 2016-09-07 Prateek Agrawal , Zackaria Chacko , Elaine C. F. S. Fortes , Can Kilic

Recent observation shows that the Higgs mass is at around 125 GeV while the prediction of the minimal supersymmetric standard model is below 120 GeV for stop mass lighter than 2 TeV unless the top squark has a maximal mixing. We consider…

High Energy Physics - Phenomenology · Physics 2012-11-30 Hyung Do Kim , Doh Young Mo , Min-Seok Seo

We study the flavor changing neutral current couplings of new heavy quarks through the Z' models at the LHC. We calculate the cross sections for the signal and the corresponding standard model background processes. Considering the present…

High Energy Physics - Phenomenology · Physics 2016-03-22 V. Cetinkaya , V. Ari , O. Cakir

The $D_4$ flavor model based on $\mathrm{SU}(3)_C \otimes \mathrm{SU}(3)_L \otimes \mathrm{U}(1)_X$ gauge symmetry that aims at describing quark mass and mixing is updated. After spontaneous breaking of flavor symmetry, with the constraint…

High Energy Physics - Phenomenology · Physics 2015-07-30 V. V. Vien , H. N. Long

We systematically study model-independent constraints on the three generic charged Higgs couplings to $b$-quarks and up-type quarks. While existing LHC searches have focussed on the $tb$ coupling, we emphasize that the LHC plays a crucial…

High Energy Physics - Phenomenology · Physics 2022-11-30 Nishita Desai , Alberto Mariotti , Mustafa Tabet , Robert Ziegler

We explore calculable models with low-energy supersymmetry where the flavor hierarchy is generated by quark and lepton compositeness, and where the composites emerge from the same sector that dynamically breaks supersymmetry. The observed…

High Energy Physics - Phenomenology · Physics 2014-11-20 Nathaniel Craig , Rouven Essig , Sebastian Franco , Shamit Kachru , Gonzalo Torroba

Based on experimental mass hierarchy, a set of flavor-democratic (FD) quark mass matrices at low energies is discussed. The model predicts CP violation parameters $J_{CP}=(0.3 \pm 0.2) 10^{-4}$ and ${\epsilon'/\epsilon} = (0.6 \pm 0.5)…

High Energy Physics - Phenomenology · Physics 2008-02-03 C. S. Kim , G. Cvetic

Strongly interacting gauge mediation (SIGM) of supersymmetry breaking is very attractive, since it naturally predicts a light gravitino of mass $\lsim{\cal O}(10)$ eV, which causes no cosmological problem. We discuss various signatures of…

High Energy Physics - Phenomenology · Physics 2009-02-09 Koichi Hamaguchi , Eita Nakamura , Satoshi Shirai , T. T. Yanagida

This paper investigates the effects of parameters in the Bestest Little Higgs Model (BLHM) on rare flavor-changing decays of the top quark. As a result, flavor-changing phenomena are introduced in the BLHM for the first time. In this study,…

High Energy Physics - Phenomenology · Physics 2023-06-30 T. Cisneros-Pérez , M. A. Hernández-Ruíz , A. Gutiérrez-Rodríguez , E. Cruz-Albaro

We present benchmark points for Pure General Gauge Mediation (GGM) models specifically optimised for early LHC searches. The pure GGM set-up is as defined in our previous paper arXiv:0910.2674: namely we adopt the minimal set-up in which…

High Energy Physics - Phenomenology · Physics 2015-05-19 Steven Abel , Matthew J. Dolan , Joerg Jaeckel , Valentin V. Khoze

We reexamine the models with gauge mediation in view of the minimality. As a result, we arrive at a very simple model of direct gauge mediation which does not suffer from the flavor problems nor the CP problems. We show that the parameter…

High Energy Physics - Phenomenology · Physics 2014-10-14 Koichi Hamaguchi , Masahiro Ibe , Tsutomu T. Yanagida , Norimi Yokozaki