Search for electroweak production of a vector-like T quark using fully hadronic final states
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2020)036
Abstract: A search is performed for electroweak production of a vector-like top quark partner T of charge 2 / 3 in association with a top or bottom quark, using proton-proton collision data at s $$ \sqrt{s}… read more here.
Keywords: production; boson; vector like; production vector ... See more keywords
Vector-like quarks and leptons, SU(5) ⊗ SU(5) grand unification, and proton decay
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2017)080
Abstract: A bstractSU(5) ⊗ SU(5) provides a minimal grand unification scheme for fermions and gauge forces if there are vector-like quarks and leptons in nature. We explore the gauge coupling unification in a non-supersymmetric model of… read more here.
Keywords: vector like; quarks leptons; grand unification; like quarks ... See more keywords
Unification with vector-like fermions and signals at LHC
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2018)090
Abstract: A bstractWe look for minimal extensions of Standard Model with vector like fermions leading to precision unification of gauge couplings. Constraints from proton decay, Higgs stability and perturbativity are considered. The simplest models contain several… read more here.
Keywords: vector like; vector; signals lhc; unification vector ... See more keywords
Search for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple b-jets with the ATLAS detector
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2018)089
Abstract: A bstractA search for pair production of up-type vector-like quarks (T ) with a significant branching ratio into a top quark and either a Standard Model Higgs boson or a Z boson is presented. The… read more here.
Keywords: vector like; four top; production; multiple jets ... See more keywords
Root bundles and towards exact matter spectra of F-theory MSSMs
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2021)076
Abstract: Abstract Motivated by the appearance of fractional powers of line bundles in studies of vector-like spectra in 4d F-theory compactifications, we analyze the structure and origin of these bundles. Fractional powers of line bundles are… read more here.
Keywords: root bundles; theory; spectra theory; matter ... See more keywords
Anomaly free Froggatt-Nielsen models of flavor
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2019)188
Abstract: Abstract We introduce two anomaly free versions of Froggatt-Nielsen (FN) models, based on either G FN = U(1)3 or G FN = U(1) horizontal symmetries, that generate the SM quark and lepton flavor structures. The… read more here.
Keywords: models flavor; free froggatt; nielsen models; anomaly free ... See more keywords
Leptonic g − 2 anomaly in an extended Higgs sector with vector-like leptons
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2021)056
Abstract: Abstract We address the observed discrepancies in the anomalous magnetic dipole moments (MDM) of the muon and electron by extending the inert two Higgs Doublet Model (2HDM) with SM gauge singlet complex scalar field and… read more here.
Keywords: extended higgs; anomaly extended; vector like; higgs sector ... See more keywords
Flavor constraints for a vector-like quark of Nelson-Barr type
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2021)093
Abstract: Abstract The Nelson-Barr (NB) mechanism to solve the strong CP problem assumes CP conservation, arranges vanishing $$ \overline{\theta} $$ θ ¯ at tree-level and requires vector-like quarks (VLQs) to transmit the CP breaking to the… read more here.
Keywords: nelson barr; flavor constraints; vector like; type ... See more keywords
Non-universal Z′ from SO(10) GUTs with vector-like family and the origin of neutrino masses
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2018.07.022
Abstract: Abstract A Z ′ gauge boson with mass around the (few) TeV scale is a popular example of physics beyond the Standard Model (SM) and can be a fascinating remnant of a Grand Unified Theory… read more here.
Keywords: vector like; neutrino; non universal; physics ... See more keywords
Top partners and scalar dark matter: A nonminimal reappraisal
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.107.075004
Abstract: A large set of models beyond the Standard Model of particle physics suggest that the top quark plays a special role in fundamental interactions. At the same time some of these models predict that a… read more here.
Keywords: matter; dark matter; vector like; model ... See more keywords
Model of vector leptoquarks in view of the B -physics anomalies
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.115002
Abstract: Lepton number as a fourth color is an intriguing theoretical idea which is combined with a possible left-right symmetry within the famous Pati-Salam (PS) model. In the conventional PS model, a spontaneous breaking of the… read more here.
Keywords: vector like; vector; vector leptoquarks; physics ... See more keywords