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Symmetry
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Symmetry in Experimental Physics of High Energies
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Symmetry in Experimental Physics of High Energies

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

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 887

Special Issue Editor

Dr. Evgeny Soldatov

E-Mail Website
Guest Editor
Department of Elementary Particle Physics, National Research Nuclear University MEPhI, Moscow 115409, Russia
Interests: experimental high-energy physics; data analysis; electroweak sector of standard model; anomalous gauge couplings; machine learning in HEP; cosmology

Special Issue Information

Dear Colleagues,

The main goal of experimental high-energy physics is to test and falsify different theory models, thereby constructing the consistent description of all observed phenomena. All these theoretical models are based on different symmetries that can be expected in the surrounding world. The new types of particles and interactions predicted in such models can be searched both directly and indirectly. Direct search can be performed when the experimental limitations make it possible to produce and/or detect these particles/interactions directly in the experiment. Indirect search makes it possible to “feel” these new inaccessible effects in the interactions of well-known particles. This Special Issue aims to discuss different experimental and phenomenological efforts regarding precise tests of currently recognized models as well as the search for new effects in order to extend our knowledge.

Dr. Evgeny Soldatov
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

  • new particles
  • anomalous couplings
  • standard model
  • BSM search
  • EFT
  • spontaneous electroweak symmetry breaking

Published Papers (1 paper)

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Research

15 pages, 540 KiB  
Article
Non-Minimal Approximation for the Type-I Seesaw Mechanism
by Mikhail Dubinin and Elena Fedotova
Symmetry 2023, 15(3), 679; https://doi.org/10.3390/sym15030679 - 08 Mar 2023
Cited by 2 | Viewed by 1024
Abstract
A non-minimal approximation for effective masses of light and heavy neutrinos in the framework of a type-I seesaw mechanism with three generations of sterile Majorana neutrinos which recover the symmetry between quarks and leptons is considered. The main results are: (a) [...] Read more.
A non-minimal approximation for effective masses of light and heavy neutrinos in the framework of a type-I seesaw mechanism with three generations of sterile Majorana neutrinos which recover the symmetry between quarks and leptons is considered. The main results are: (a) the next-order corrections to the effective mass matrix of heavy neutrinos due to terms O(θMD) are obtained, which modify the commonly used representation for the effective mass (MD is a Dirac neutrino mass when the electroweak symmetry is spontaneously broken); and (b) the general form of the mixing matrix is found in non-minimal approximation parametrized by a complex 3×3 matrix satisfying a nontrivial constraint. Numerical analysis within the νMSM framework demonstrates the very small effect of new contributions of direct collider observables as opposed to their possible significance for cosmological models. Full article
(This article belongs to the Special Issue Symmetry in Experimental Physics of High Energies)
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