English
Related papers

Related papers: Multi-Component Dark Matter from Minimal Flavor Vi…

200 papers

We propose a mass-varying dark matter (MVDM) model consisting of a scalar field and a fermionic field interacting via a simple Yukawa coupling, and containing an exponential self-interaction potential for the scalar field. Analyzing the…

High Energy Physics - Phenomenology · Physics 2024-02-06 Sayan Mandal , Neelima Sehgal

The interactions of dark matter (DM) with the visible sector are often phenomenologically described in the framework of simplified models where the couplings of quarks to the new particles are generally assumed to be universal or have a…

High Energy Physics - Phenomenology · Physics 2021-01-04 Giorgio Arcadi , Davide Meloni , Martin B. Krauss

The 100+ free parameters of the minimal supersymmetric standard model (MSSM) make it computationally difficult to compare systematically with data, motivating the study of specific parameter reductions such as the cMSSM and pMSSM. Here we…

High Energy Physics - Phenomenology · Physics 2015-03-18 S. S. AbdusSalam , C. P. Burgess , F. Quevedo

Thermal relic dark matter particles with a mass of 31-40 GeV and that dominantly annihilate to bottom quarks have been shown to provide an excellent description of the excess gamma rays observed from the center of the Milky Way. Flavored…

High Energy Physics - Phenomenology · Physics 2014-09-17 Prateek Agrawal , Brian Batell , Dan Hooper , Tongyan Lin

The CP-violating phenomenology of the MSSM with Minimal Flavor Violation (MFV) in the lepton sector is revisited. To this end, the most general parametrizations of the slepton soft-breaking terms are constructed assuming a seesaw mechanism…

High Energy Physics - Phenomenology · Physics 2014-11-18 Lorenzo Mercolli , Christopher Smith

We consider the standard model (SM) quark flavor sector. We study its structure in a spurionic, symmetry oriented approach. The SM picture of flavor and CP violation is now experimentally verified, hence strong bounds on beyond the SM…

High Energy Physics - Phenomenology · Physics 2009-11-12 Gilad Perez

We explore the phenomenology of a QCD-like dark sector which confines around the GeV scale. The dark sector inherits a flavour structure from a coupling between dark quarks and SM quarks via a heavy mediator, which leads to exciting new…

High Energy Physics - Phenomenology · Physics 2018-08-29 Sophie Renner , Pedro Schwaller

In these proceedings, we present a study of a combined singlet--doublet fermion and triplet scalar model for dark matter (DM). Together, these models form a simple extension of the Standard Model (SM) that can account for DM and explain the…

High Energy Physics - Phenomenology · Physics 2019-05-16 Juri Fiaschi , Michael Klasen , Simon May

We consider theories where the dark matter particle carries flavor quantum numbers, and has renormalizable contact interactions with the Standard Model fields. The phenomenology of this scenario depends sensitively on whether dark matter…

High Energy Physics - Phenomenology · Physics 2015-03-19 Prateek Agrawal , Steve Blanchet , Zackaria Chacko , Can Kilic

Partial compositeness is a key ingredient of models where the electroweak symmetry is broken by a composite Higgs state. Recently, a UV completion of partial compositeness was proposed, featuring a new strongly coupled gauge interaction as…

High Energy Physics - Phenomenology · Physics 2018-07-04 Francesco Sannino , Peter Stangl , David M. Straub , Anders Eller Thomsen

We consider an extension of the Standard Model with two singlet leptons, with masses in the electroweak range, that induce neutrino masses via the see-saw mechanism, plus a generic new physics sector at a higher scale, $\Lambda$. We apply…

High Energy Physics - Phenomenology · Physics 2020-07-15 Daniele Barducci , Enrico Bertuzzo , Andrea Caputo , Pilar Hernandez

We address the SUSY CP problem in the framework of Minimal Flavor Violation (MFV), where the SUSY flavor problem finds a natural solution. By contrast, the MFV principle does not solve the SUSY CP problem as it allows for the presence of…

High Energy Physics - Phenomenology · Physics 2010-02-01 Paride Paradisi , David Straub

What flavour structure of $t$-channel thermal dark matter remains compatible with current flavour physics and direct detection bounds? We broadly chart the space of hypotheses using the framework of flavour symmetries and their breaking…

High Energy Physics - Phenomenology · Physics 2026-01-14 Simone Biondini , Admir Greljo , Xavier Ponce Díaz , Alessandro Valenti

We currently live in the age of the CKM paradigm. The $3\times 3$ matrix that links $(d,\ s,\ b)$ quarks to $(u,\ c,\ t)$ in the charged current weak interaction, being complex and nominally with 18 parameters, can be accounted for by just…

High Energy Physics - Phenomenology · Physics 2017-10-25 Paoti Chang , Kai-Feng Chen , Wei-Shu Hou

We present a systematic spurion setup called Aligned Flavor Violation (AFV) that allows for new physics couplings to quarks that are aligned with the Standard Model (SM) Yukawas, but do not necessarily share their hierarchies nor are family…

High Energy Physics - Phenomenology · Physics 2019-07-24 Daniel Egana-Ugrinovic , Samuel Homiller , Patrick Meade

Working within the context of the minimal supersymmetric standard model, we compare current bounds from quark flavor changing processes with current and upcoming bounds on lepton flavor violation. We assume supersymmetry breaking…

High Energy Physics - Phenomenology · Physics 2018-03-07 Sebastian A. R. Ellis , Aaron Pierce

Models incorporating flavoured dark matter provide an elegant solution to the dark matter problem, evading the tight LHC and direct direction constraints on simple WIMP models. In Dark Minimal Flavour Violation, a simple framework of…

High Energy Physics - Phenomenology · Physics 2021-03-29 Monika Blanke , Priscilla Pani , Giacomo Polesello , Giulia Rovelli

If new physics is called upon to explain away fine tunings, like the hierarchy problem, then, we argue, the principle of Minimal Flavor Violation is inescapable. We review the principle and recent extensions to the lepton sector and to…

High Energy Physics - Phenomenology · Physics 2007-06-29 Benjamin Grinstein

A suitably broken U(2)^3 symmetry acting on the first two generations of quarks and squarks is studied as a natural generalization of the Minimal Flavour Violation principle to the case of a hierarchical squark spectrum. A definite…

High Energy Physics - Phenomenology · Physics 2011-10-31 David M. Straub

We present a variant of the warped extra dimension, Randall-Sundrum (RS), framework which is based on five dimensional (5D) minimal flavor violation (MFV), in which the only sources of flavor breaking are two 5D anarchic Yukawa matrices.…

High Energy Physics - Phenomenology · Physics 2009-08-12 A. Liam Fitzpatrick , Gilad Perez , Lisa Randall
‹ Prev 1 4 5 6 7 8 10 Next ›