Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Tom Steudtner"'
Autor:
Tom Steudtner, Anders Eller Thomsen
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-29 (2024)
Abstract We determine the three-loop MS ¯ $$ \overline{\textrm{MS}} $$ quartic β-function for the most general renormalisable four-dimensional theories. A general parametrisation of the β-function is compared to known β-functions for specific the
Externí odkaz:
https://doaj.org/article/9b7fe43d9a8f40ecaef3308cb923305d
Autor:
Tom Steudtner
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-26 (2024)
Abstract We revisit the scalar potential in the Litim-Sannino model. We compute for the first time the full quantum corrections to the classical potential and show that they significantly ameliorate the stability analysis at the UV fixed point. The q
Externí odkaz:
https://doaj.org/article/337f5057b6de4250b003126f9b860804
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-75 (2024)
Abstract Results for β-functions and anomalous dimensions in general scalar fermion theories are presented to three loops. Various constraints on the individual coefficients for each diagram following from supersymmetry are analysed. The results are
Externí odkaz:
https://doaj.org/article/0caa90b8cc4e4a23b23eb1dfaf3f6e6a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-22 (2022)
Abstract $$U(1)^\prime $$ U ( 1 ) ′ extensions of the standard model with generation-dependent couplings to quarks and leptons are investigated as an explanation of anomalies in rare B-decays, with an emphasis on stability and predictivity up to th
Externí odkaz:
https://doaj.org/article/c63a576213a14d94a5fbb7e808fb5c4f
Autor:
Tom Steudtner
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-24 (2021)
Abstract For arbitrary four-dimensional quantum field theories with scalars and fermions, renormalisation group equations in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme are investigated at three-loop order in perturbation theory. Collecting literat
Externí odkaz:
https://doaj.org/article/1aeb070c9e3d406b959188de6a69a5ad
Autor:
Tom Steudtner
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 12, Pp 1-17 (2020)
Abstract For arbitrary scalar QFTs in four dimensions, renormalisation group equations of quartic and cubic interactions, mass terms, as well as field anomalous dimensions are computed at three-loop order in the MS ¯ $$ \overline{\mathrm{MS}} $$ sch
Externí odkaz:
https://doaj.org/article/2f7f8dbb47294c16af9533e10f152fba
Publikováno v:
Nuclear Physics B, Vol 939, Iss , Pp 1-48 (2019)
We revisit the renormalisation group equations (RGE) for general renormalisable gauge theories at one- and two-loop accuracy. We identify and correct various mistakes in the literature for the β-functions of the dimensionful Lagrangian parameters (t
Externí odkaz:
https://doaj.org/article/071ff7009ba944ff8053c8ade1a13f1b
Publikováno v:
Nuclear Physics B, Vol 966, Iss , Pp 115339- (2021)
Externí odkaz:
https://doaj.org/article/502d167c237149c4a66d3577a884c236
Publikováno v:
Physical Review
We address the notorious metastability of the standard model (SM) and promote it to a model building task: What are the new ingredients required to stabilize the SM up to the Planck scale without encountering subplanckian Landau poles? Using the SM e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c96ee2b535f603b32ee49785f1bb37b4
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-22 (2022)
European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-22 (2022)
$U(1)^\prime$ extensions of the standard model with generation-dependent couplings to quarks and leptons are investigated as an explanation of anomalies in rare $B$-decays, with an emphasis on stability and predictivity up to the Planck scale. To the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14ec119ccc1cff0e0859b5dfb55845b7
