A realistic theory of E6 unification through novel intermediate symmetries

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

A realistic theory of E6 unification through novel intermediate symmetries

Popis výsledku v původním jazyce

We propose a non-supersymmetric E-6 GUT with the scalar sector consisting of 650 circle plus 351 &apos;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) &quot;spinorial parity&quot;, 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.

Název v anglickém jazyce

A realistic theory of E6 unification through novel intermediate symmetries

Popis výsledku anglicky

We propose a non-supersymmetric E-6 GUT with the scalar sector consisting of 650 circle plus 351 &apos;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) &quot;spinorial parity&quot;, 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

67

Strana od-do

18

Kód UT WoS článku

001244498900003

EID výsledku v databázi Scopus

2-s2.0-85195681351