Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Darius Jurčiukonis"'
Publikováno v:
Nuclear Physics B, Vol 996, Iss , Pp 116373- (2023)
We consider the one-loop corrections to the Zbb¯ vertex in a CP-conserving left–right model (LRM), viz. a model with gauge group SU(2)L×SU(2)R×U(1). We allow the gauge coupling constants of SU(2)L and SU(2)R to be different. The spontaneous symm
Externí odkaz:
https://doaj.org/article/8c5f62f590ed40639ee1fa28cc6adca3
Autor:
Darius Jurčiukonis, Luís Lavoura
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-54 (2022)
Abstract We evaluate the decays ℓ 1 ± $$ {\ell}_1^{\pm } $$ → ℓ 2 ± γ $$ {\ell}_2^{\pm}\gamma $$ , Z → ℓ 1 + ℓ 2 − $$ {\ell}_1^{+}{\ell}_2^{-} $$ , and h → ℓ 1 + ℓ 2 − $$ {\ell}_1^{+}{\ell}_2^{-} $$ , where ℓ 1 and ℓ 2 ar
Externí odkaz:
https://doaj.org/article/35097e32427f4824848fb8393daed631
Autor:
Darius Jurčiukonis, Luís Lavoura
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-30 (2021)
Abstract We investigate the new contributions to the parameters g L and g R of the Zb b ¯ $$ Zb\overline{b} $$ vertex in a multi-Higgs-doublet model (MHDM). We emphasize that those contributions generally worsen the fit of those parameters to the ex
Externí odkaz:
https://doaj.org/article/a93bd54633794ba18cd9c2da157d8cd1
Autor:
Darius Jurčiukonis, Luís Lavoura
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 7, Pp 1-25 (2019)
Abstract We propose new lepton-mixing textures that may be enforced through well-defined symmetries in renormalizable models. Each of our textures has four sum rules for the neutrino mass observables. The models are based on the type-I seesaw mechani
Externí odkaz:
https://doaj.org/article/52ec4822d81c465bb384df5a58126b6a
Autor:
Darius Jurčiukonis, Luís Lavoura
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 3, Pp 1-30 (2018)
Abstract We construct a class of renormalizable models for lepton mixing that generate predictions given in terms of the charged-lepton mass ratios. We show that one of those models leads, when one takes into account the known experimental values, to
Externí odkaz:
https://doaj.org/article/83cfa7f99af7495f8687e99e8d095a8f
Autor:
Simonas Draukšas, Vytautas Dūdėnas, Thomas Gajdosik, Andrius Juodagalvis, Paulius Juodsnukis, Darius Jurčiukonis
Publikováno v:
Symmetry, Vol 11, Iss 11, p 1418 (2019)
The Grimus−Neufeld model can explain the smallness of measured neutrino masses by extending the Standard Model with a single heavy neutrino and a second Higgs doublet, using the seesaw mechanism and radiative mass generation. The Grimus−Lavoura a
Externí odkaz:
https://doaj.org/article/444abd1deb0f4a9fba96f938587cb436
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 12, Pp 1-28 (2020)
Journal of high energy physics, New York : Springer, 2020, vol. 12, p. [1-29]
Journal of High Energy Physics
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Journal of high energy physics, New York : Springer, 2020, vol. 12, p. [1-29]
Journal of High Energy Physics
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
We consider the one-loop radiative corrections to the light-neutrino mass matrix and their consequences for the predicted branching ratios of the five lepton-flavour-violating decays $\ell_1^- \to \ell_2^- \ell_3^+ \ell_3^-$ in a two-Higgs-doublet mo
Autor:
Darius Jurčiukonis, Luís Lavoura
Publikováno v:
Journal of High Energy Physics
Journal of high energy physics, New York : Springer, 2022, vol. 3, art. no. 106, p. [1-54]
Journal of high energy physics, New York : Springer, 2022, vol. 3, art. no. 106, p. [1-54]
We evaluate the decays $\ell_1^\pm \to \ell_2^\pm \gamma$, $Z \to \ell_1^+ \ell_2^-$, and $h \to \ell_1^+ \ell_2^-$, where $\ell_1$ and $\ell_2$ are charged leptons with different flavours and $h$ is the scalar particle with mass 125.25 GeV, in a two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::657b1ad55f8d3163c7dd4bdb4aea175b
http://arxiv.org/abs/2107.14207
http://arxiv.org/abs/2107.14207
Autor:
Luís Lavoura, Darius Jurčiukonis
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-30 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
We investigate the new contributions to the parameters $g_L$ and $g_R$ of the $Z b \bar b$ vertex in a multi-Higgs-doublet model (MHDM). We emphasize that those contributions generally worsen the fit of those parameters to the experimental data. We p
Autor:
Vytautas Dūdėnas, Andrius Juodagalvis, Simonas Draukšas, Darius Jurčiukonis, Paulius Juodsnukis, Thomas Gajdosik
Publikováno v:
Symmetry
Volume 11
Issue 11
Symmetry: Special Issue "Selected papers from 43rd international conference of theoretical physics: Matter to the deepest, recent developments in physics of fundamental interactions (MTTD2019)", Basel : MDPI, 2019, vol. 11, iss. 11, art. no. 1418, p. [1-9]
Symmetry, Vol 11, Iss 11, p 1418 (2019)
Volume 11
Issue 11
Symmetry: Special Issue "Selected papers from 43rd international conference of theoretical physics: Matter to the deepest, recent developments in physics of fundamental interactions (MTTD2019)", Basel : MDPI, 2019, vol. 11, iss. 11, art. no. 1418, p. [1-9]
Symmetry, Vol 11, Iss 11, p 1418 (2019)
The Grimus&ndash
Neufeld model can explain the smallness of measured neutrino masses by extending the Standard Model with a single heavy neutrino and a second Higgs doublet, using the seesaw mechanism and radiative mass generation. The Grimus&nd
Neufeld model can explain the smallness of measured neutrino masses by extending the Standard Model with a single heavy neutrino and a second Higgs doublet, using the seesaw mechanism and radiative mass generation. The Grimus&nd