A realistic theory of E6 unification through novel intermediate symmetries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10494855" target="_blank" >RIV/00216208:11320/24:10494855 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=T.qF0aMXJl" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=T.qF0aMXJl</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP06(2024)018" target="_blank" >10.1007/JHEP06(2024)018</a>
Alternative languages
Result language
angličtina
Original language name
A realistic theory of E6 unification through novel intermediate symmetries
Original language description
We propose a non-supersymmetric E-6 GUT with the scalar sector consisting of 650 circle plus 351 'circle plus 27. Making use of the first representation for the initial symmetry breaking to an intermediate stage, and the latter two representations for second-stage breaking to the Standard Model and a realistic Yukawa sector, this theory represents the minimal E-6 GUT that proceeds through one of the intermediate stages that are novel compared to SU(5) or SO(10) GUT: trinification SU(3)(C) x SU(3)(L) x SU(3)(R), SU(6) x SU(2) and flipped SO(10) x U(1). We analyze these possibilities under the choice of vacuum that preserves a Z(2) "spinorial parity", which disentangles the chiral and vector-like fermions of E-6 and provides a dark matter candidate in the form of a (scalar) inert doublet. Three cases are shown to consistently unify under the extended survival hypothesis (with minimal fine-tuning): trinification symmetry SU(3)(C) x SU(3)(L) x SU(3)(R) with either LR or CR parity, and SU(6)(CR) x SU(2)(L). Although the successful cases give a large range for proton lifetime estimates, all of them include regions consistent with current experimental bounds and within reach of forthcoming experiments. The scenario investigated in this paper essentially represents the unique (potentially) viable choice in the class of E-6 GUTs proceeding through a novel-symmetry intermediate stage, since non-minimal alternatives seem to be intrinsically non-perturbative.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Fundamental constituents of matter through frontier technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
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Volume of the periodical
Neuveden
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
67
Pages from-to
18
UT code for WoS article
001244498900003
EID of the result in the Scopus database
2-s2.0-85195681351