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Symmetry
Special Issues
Electroweak Symmetry and Theory
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Electroweak Symmetry and Theory

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".

Deadline for manuscript submissions: closed (15 April 2018) | Viewed by 2159

Special Issue Editor

Prof. Naoyuki Haba

E-Mail Website
Guest Editor
Department of Physics and Material Science, Shimane University, Matsue 690-8504, Japan
Interests: gauge-Higgs unification; Higgs; Majorana CP; SUSY; extra dimensional theory; flavor structure of quarks and leptons

Special Issue Information

Dear Colleagues,

The Standard Model of elementary particle physics is almost consistent with experiments below O(100) GeV. However, there exist some mysteries, and one of the biggest question is "what is the origin of electroweak symmetry breaking?". It implies an existence of fundamental physics behind the Standard Model (Beyond the Standard Model (BSM)), and it is an important clue to search the BSM.

For the BSM, people have suggested "supersymmetry (SUSY)", "extradimension theory", "techni-color theory", etc. We must consider electroweak precision observables seriously. It is very well-come a new idea.

Prof. Naoyuki Haba
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Standrad model
  • Electroweak symmetry breaking
  • Supersymmetry
  • Extradimensional theory
  • Techni-color theory
  • Electroweak precision observables

Published Papers (1 paper)

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Research

13 pages, 369 KiB  
Article
Connecting Electroweak Symmetry Breaking and Flavor: A Light Dilaton D and a Sequential Heavy Quark Doublet Q
by Wei-Shu Hou
Symmetry 2018, 10(8), 312; https://doi.org/10.3390/sym10080312 - 01 Aug 2018
Cited by 1 | Viewed by 1950
Abstract
The 125 GeV boson is quite consistent with the Higgs boson of the Standard Model (SM), but there is a challenge from Anderson as to whether this particle is in the Lagrangian. As Large Hadron Collider (LHC) Run 2 enters its final year [...] Read more.
The 125 GeV boson is quite consistent with the Higgs boson of the Standard Model (SM), but there is a challenge from Anderson as to whether this particle is in the Lagrangian. As Large Hadron Collider (LHC) Run 2 enters its final year of running, we ought to reflect and make sure we have gotten everything right. The ATLAS and CMS combined Run 1 analysis claimed a measurement of 5.4σ vector boson fusion (VBF) production which is consistent with SM, which seemingly refutes Anderson. However, to verify the source of electroweak symmetry breaking (EWSB), we caution that VBF measurement is too important for us to be imprudent in any way, and gluon–gluon fusion (ggF) with similar tag jets must be simultaneous measured, which should be achievable in LHC Run 2. The point is to truly test the dilaton possibility—the pseudo-Goldstone boson of scale invariance violation. We illustrate EWSB by dynamical mass generation of a sequential quark doublet (Q) via its ultrastrong Yukawa coupling and argue how this might be consistent with a 125 GeV dilaton, D. The ultraheavy 2mQ≳4–5 TeV scale explains the absence of New Physics so far, while the mass generation mechanism shields us from the UV theory for the strong Yukawa coupling. Collider and flavor physics implications are briefly touched upon. Current Run 2 analyses show correlations between the ggF and VBF measurements, but the newly observed tt¯H production at LHC poses a challenge. Full article
(This article belongs to the Special Issue Electroweak Symmetry and Theory)
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