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Related papers: The Hierarchy Problem and an Exotic Bound State

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By means of a general classification of the different kinds of matter of nature form a chain from the world of the subatomic particles to the large bodies of the universe, the galaxies. Then, it proposes a new baryonic force for the…

Astrophysics · Physics 2007-05-23 Mario Everaldo de Souza

The Higgs could couple to a topological 4-form sector which yields a complex vacuum structure. In general such couplings could lead to direct CP violation in the Higgs sector. In many of the Higgs vacua electroweak symmetry is unbroken. In…

High Energy Physics - Theory · Physics 2020-07-15 Nemanja Kaloper , Alexander Westphal

[Talk presented at the International Seminar Quarks `92, Zvenigorod, Russia, May 11-17, 1992.] The electroweak vacuum need not be absolutely stable. For certain top and Higgs masses in the Minimal Standard Model, it is instead metastable…

High Energy Physics - Phenomenology · Physics 2007-05-23 Peter Arnold

Motivated by natural inflation, we propose a relaxation mechanism consistent with inflationary cosmology that explains the hierarchy between the electroweak scale and Planck scale. This scenario is based on a selection mechanism that…

High Energy Physics - Phenomenology · Physics 2016-12-14 Luca Marzola , Martti Raidal

Electroweak baryogenesis is severely challenged in its traditional settings: the Minimal Supersymmetric Standard Model, and in more general two Higgs doublet models. Fine tuning of parameters is required, or large couplings leading to a…

High Energy Physics - Phenomenology · Physics 2017-07-18 James M. Cline

Constants of Nature that have nongeneric values pose a riddle often referred to as the finetuning problem. The conspicuous values assumed by many physical constants (e.g., the vanishing effective cosmological constant, the smallness of the…

High Energy Physics - Phenomenology · Physics 2008-02-03 D. L. Bennett , C. D. Froggatt , H. B. Nielsen

Constraints from precision electroweak measurements reveal no evidence for new physics up to 5 - 7 TeV, whereas naturalness requires new particles at around 1 TeV to address the stability of the electroweak scale. We show that this "little…

High Energy Physics - Phenomenology · Physics 2009-11-10 Hsin-Chia Cheng , Ian Low

Motivated by LHC results, we modify the usual criterion for naturalness by ignoring the uncomputable power divergences. The Standard Model satisfies the modified criterion ('finite naturalness') for the measured values of its parameters.…

High Energy Physics - Phenomenology · Physics 2015-06-15 Marco Farina , Duccio Pappadopulo , Alessandro Strumia

We show that a class of parity based solutions to the strong CP problem predicts new colored particles with mass at the TeV scale, due to constraints from Planck suppressed operators. The new particles are copies of the Standard Model…

High Energy Physics - Phenomenology · Physics 2016-10-07 Raffaele Tito D'Agnolo , Anson Hook

We consider first the standard model Lagrangian with $\mu_h^2$ Higgs potential term set to zero. We point out that this clasically scale invariant theory potentially exhibits radiative electroweak/scale symmetry breaking with very high…

High Energy Physics - Phenomenology · Physics 2014-09-18 Robert Foot , Archil Kobakhidze , Alexander Spencer-Smith

We discuss phenomenology of quantum vacuum. Phenomenology of macroscopic systems has three sources: thermodynamics, topology and symmetry. Thermodynamics of the self-sustained vacuum allows us to treat the problems related to the vacuum…

Other Condensed Matter · Physics 2013-09-13 G. E. Volovik

The standard electroweak theory of leptons and the conformal groups of spacetime Weyl's transformations are at the core of a general relativistic, conformally covariant scalar tensor theory aimed at the resolution of the most intriguing…

General Relativity and Quantum Cosmology · Physics 2018-02-27 Francesco De Martini

A topological theory for the interactions in Nature is presented. The theory derives from the cyclic properties of the topological manifold Q=2T^3 + 3S^1 x S^2 which has 23 intrinsic degrees of freedom, discrete Z_3 and Z_2 x Z_3 internal…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Marco Spaans

In order to extend the Standard Model to TeV scale energies one must address two basic questions: (1) What is the complete description of the effective theory of fundamental particles at and below the electroweak scale? and (2) What is the…

High Energy Physics - Phenomenology · Physics 2008-02-03 S. Dawson , H. Haber

We give an evidence of the Big Fix. The theory of wormholes and multiverse suggests that the parameters of the Standard Model are fixed in such a way that the total entropy at the late stage of the universe is maximized, which we call the…

High Energy Physics - Phenomenology · Physics 2014-09-10 Yuta Hamada , Hikaru Kawai , Kiyoharu Kawana

In the standard model, a lower bound to the Higgs mass (for a given top quark mass) exists if one requires that the standard model vacuum be stable. This bound is calculated as precisely as possible, including the most recent values of the…

High Energy Physics - Phenomenology · Physics 2009-10-22 Marc Sher

We propose a new higher-dimensional mechanism for solving the Hierarchy Problem. The Weak scale is generated from a large scale of order the Planck scale through an exponential hierarchy. However, this exponential arises not from gauge…

High Energy Physics - Phenomenology · Physics 2008-11-26 Lisa Randall , Raman Sundrum

In the standard scenario, the electroweak phase transition is a first order phase transition which completes by the nucleation of critical bubbles. Recently, there has been speculation that the standard picture of the electroweak phase…

High Energy Physics - Phenomenology · Physics 2007-05-23 Greg W. Anderson

We make an attempt to identify regions in a Type II Two-Higgs Doublet Model, which correspond to a metastable electroweak vacuum with lifetime larger than the age of the universe. We analyse scenarios which retain perturbative unitarity up…

High Energy Physics - Phenomenology · Physics 2017-04-05 Nabarun Chakrabarty , Biswarup Mukhopadhyaya

We study a recently proposed mechanism to solve the hierarchy problem in the context of the landscape, where the solution of the hierarchy problem is connected to the requirement of having baryons in our universe via Electroweak…

High Energy Physics - Phenomenology · Physics 2009-11-11 Leonardo Senatore