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We present a simple microscopic realization of a pseudo-Nambu-Goldstone (pNGB) boson Higgs scenario arising from the breaking of $SO(5) \rightarrow SO(4)$. The Higgs constituents are explicitly identified as well as the interactions…

High Energy Physics - Phenomenology · Physics 2015-07-20 Gero von Gersdorff , Eduardo Ponton , Rogerio Rosenfeld

We propose a supersymmetric technicolor model in which the electroweak symmetry breaking is communicated to the quarks and leptons by technicolored $SU(2)_W$-singlet scalars. When the technifermions condense, the quarks and leptons of the…

High Energy Physics - Phenomenology · Physics 2008-12-22 Bogdan A. Dobrescu

Two paradigms for the origin of electroweak superconductivity are a weakly coupled scalar condensate, and a strongly coupled fermion condensate. The former suffers from a finetuning problem unless there are cancelations to radiative…

High Energy Physics - Phenomenology · Physics 2009-11-11 Emanuel Katz , Ann E. Nelson , Devin G. E. Walker

We show that by combining the elementary-Goldstone-Higgs scenario and supersymmetry it is possible to raise the scale of supersymmetry breaking to several TeVs by relating it to the spontaneous-symmetry-breaking one. This is achieved by…

High Energy Physics - Phenomenology · Physics 2017-09-13 Tommi Alanne , Heidi Rzehak , Francesco Sannino , Anders Eller Thomsen

We investigate naturalness in the Standard Model (SM) Higgs sector using effective field theory (EFT) techniques and find the requirements on the new heavy physics that can potentially cure the little hierarchy problem below a scale…

High Energy Physics - Phenomenology · Physics 2014-10-16 Shaouly Bar-Shalom

While little Higgs models provide an interesting way to address the hierarchy problem, concrete models in the literature typically face two major obstacles. First, the mechanism for generating a Higgs quartic coupling often leads to large…

High Energy Physics - Phenomenology · Physics 2014-11-21 Martin Schmaltz , Daniel Stolarski , Jesse Thaler

A new class of solutions to the electroweak hierarchy problem is presented that does not require either weak scale dynamics or anthropics. Dynamical evolution during the early universe drives the Higgs mass to a value much smaller than the…

High Energy Physics - Phenomenology · Physics 2015-12-02 Peter W. Graham , David E. Kaplan , Surjeet Rajendran

We point out a novel possible mechanism by which the electroweak hierarchy problem can be avoided in the (effective) quantum field theory. Assuming the existence of a UV complete underlying fundamental theory and treating the cutoff scale…

High Energy Physics - Phenomenology · Physics 2015-01-14 Piotr H. Chankowski , Adrian Lewandowski , Krzysztof A. Meissner , Hermann Nicolai

Recently a new class of theories of electroweak symmetry breaking have been constructed. These models, based on deconstruction and the physics of theory space, provide the first alternative to weak-scale supersymmetry with naturally light…

High Energy Physics - Phenomenology · Physics 2011-01-13 N. Arkani-Hamed , A. G. Cohen , T. Gregoire , E. Katz , A. E. Nelson , J. G. Wacker

We investigate induced electroweak symmetry breaking (EWSB) in models in which the Higgs is a pseudo-Nambu-Goldstone boson (pNGB). In pNGB Higgs models, Higgs properties and precision electroweak measurements imply a hierarchy between the…

High Energy Physics - Phenomenology · Physics 2017-04-26 Roni Harnik , Kiel Howe , John Kearney

A vector leptoquark at the TeV scale, mostly coupled to the fermions of the third generation, is the preferred option to explain the hints of lepton flavor universality violation in the decays of B-mesons. It seems interesting to assume…

High Energy Physics - Phenomenology · Physics 2020-01-29 Leandro Da Rold , Federico Lamagna

We construct and study the 5D realization of a composite Higgs model with minimal tuning. The Higgs is a (pseudo-)Goldstone boson from the spontaneous breaking of a global SO(5) symmetry to an SO(4) subgroup. The peculiarity of our…

High Energy Physics - Phenomenology · Physics 2013-07-22 Duccio Pappadopulo , Andrea Thamm , Riccardo Torre

We consider the phenomenology of models in which electroweak symmetry breaking is triggered by new strong dynamics affecting the third generation and is transmitted to the light fermions via a fundamental Higgs doublet. While similar in…

High Energy Physics - Phenomenology · Physics 2009-10-31 Alfredo Aranda , Christopher D. Carone

We construct composite Higgs models admitting a weakly coupled Seiberg dual description. We focus on the possibility that only the up-type Higgs is an elementary field, while the down-type Higgs arises as a composite hadron. The model,…

High Energy Physics - Phenomenology · Physics 2015-03-17 Sakura Schafer-Nameki , Carlos Tamarit , Gonzalo Torroba

I describe, from the bottom up, a sequence of natural effective field theories. Below a TeV we have the minimal standard model with a light Higgs, and an extra neutral scalar. In the 1-10 TeV region these scalars are part of a multiplet of…

High Energy Physics - Phenomenology · Physics 2017-08-23 Ann E. Nelson

We propose an attractor mechanism which generates the "more minimal" supersymmetric standard model from a broad class of supersymmetry breaking boundary conditions. The hierarchies in the fermion masses and mixings are produced by the same…

High Energy Physics - Phenomenology · Physics 2013-05-30 Timothy Cohen , Anson Hook , Gonzalo Torroba

We present a unified picture of flavor and electroweak symmetry breaking based on a nonlinear sigma model spontaneously broken at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes. Explicit collective symmetry breaking…

High Energy Physics - Phenomenology · Physics 2009-11-10 Federica Bazzocchi , Marco Fabbrichesi

After the Higgs boson discovery, it is established that the Higgs mechanism explains electroweak symmetry breaking and generates the masses of all particles in the Standard Model, with the possible exception of neutrino masses. The…

High Energy Physics - Phenomenology · Physics 2017-01-04 Martin Bauer , Marcela Carena , Katrin Gemmler

The so-called metastability bound asserts that an unnaturally small Higgs mass is a necessary condition for electroweak vacuum metastability, offering a new approach towards solving the hierarchy problem. So far, this result relies on the…

High Energy Physics - Phenomenology · Physics 2024-08-21 Sean Benevedes , Thomas Steingasser , Sokratis Trifinopoulos

We introduce a new confining force (\mu-color) at TeV scale to dynamically generate a supersymmetry preserving mass scale which would replace the \mu parameter in the minimal supersymmetric standard model (MSSM). We discuss the Higgs…

High Energy Physics - Phenomenology · Physics 2016-08-25 Kiwoon Choi , Hyung Do Kim
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