Results 21 to 30 of about 4,794 (202)

A package for renormalization group running in the SMEFT with sterile neutrinos

European Physical Journal C: Particles and Fields
Sterile neutrinos are well-motivated beyond the Standard Model (BSM) particles. The Standard Model Effective Field Theory (SMEFT) augmented with these new fields is known as the $$\nu $$ ν SMEFT.
Jason Aebischer, Tejhas Kapoor, Jacky Kumar   +2 more
doaj   +2 more sources

Probing dimension-8 SMEFT operators through neutral meson mixing [PDF]

Journal of High Energy Physics
We investigate the impact of effective interactions of dimension-8 (dim-8) operators in the standard model effective field theory (SMEFT) on neutral meson mixing, focusing on the $$ {K}^0-{\overline{K}}^0 $$ K 0 − K ¯ 0 ,
Y. P. Liao, Xiao-Dong Ma, Haolin Wang
openalex   +3 more sources

Scheming in the SMEFT... and a reparameterization invariance! [PDF]

Journal of High Energy Physics, 2017
We explain a reparameterization invariance in the Standard Model Effective Field Theory present when considering $\bar{\psi} \psi \rightarrow \bar{\psi} \psi$ scatterings (with $\psi$ a fermion) and how this leads to unconstrained combinations of Wilson ...
Brivio, Ilaria, Trott, Michael
core   +9 more sources

A log story short: running contributions to radiative Higgs decays in the SMEFT [PDF]

Journal of High Energy Physics
We investigate the renormalization of the radiative decays of the Higgs to two gauge bosons in the Standard Model Effective Field Theory at mass dimension eight.
Christophe Grojean, Guilherme Guedes, Jasper Roosmale Nepveu, Gabriel M. Salla   +3 more
openalex   +3 more sources

Correlating $$B\rightarrow K^{(*)} \nu \bar{\nu }$$ and flavor anomalies in SMEFT [PDF]

The European Physical Journal C
The recent measurement of $$\mathcal {B}(B^+\rightarrow K^+\nu \bar{\nu })$$ B ( B + →
Feng-Zhi Chen, Qiaoyi Wen, Fanrong Xu
openalex   +2 more sources

Loop counting matters in SMEFT

SciPost Physics, 2023
We show that, in addition to the counting of canonical dimensions, a counting of loop orders is necessary to fully specify the power counting of Standard Model Effective Field Theory (SMEFT).
Gerhard Buchalla, Gudrun Heinrich, Christoph Müller-Salditt, Florian Pandler
doaj   +4 more sources

Feasibility of ultrarelativistic bubbles in SMEFT [PDF]

Physical Review D
A first order electroweak phase transition probes physics beyond the Standard Model on multiple frontiers and therefore is of immense interest for theoretical exploration.
U. Banerjee, Sabyasachi Chakraborty, S. Prakash, S. U. Rahaman   +3 more
semanticscholar   +3 more sources

An EWPD SMEFT likelihood for the LHC — and how to improve it with measurements of W and Z boson properties

Journal of High Energy Physics
This paper presents a computer code for analyzing electroweak precision data (EWPD) in the framework of the Standard Model Effective Field Theory (SMEFT), highlights the importance of recent ATLAS and CMS precision measurements, and introduces a novel ...
Hannes Mildner
doaj   +2 more sources

Towards the ultimate differential SMEFT analysis [PDF]

Journal of High Energy Physics, 2020
Abstract We obtain SMEFT bounds using an approach that utilises the complete multi-dimensional differential information of a process. This approach is based on the fact that at a given EFT order, the full angular distribution in the most important electroweak processes can be expressed as a sum of a fixed number of basis functions.
Shankha Banerjee, Rick S. Gupta, Joey Reiness, Satyajit Seth, Michael Spannowsky   +4 more
openalex   +6 more sources

Future DUNE constraints on EFT

Journal of High Energy Physics, 2018
In the near future, fundamental interactions at high-energy scales may be most efficiently studied via precision measurements at low energies. A universal language to assemble and interpret precision measurements is the so-called SMEFT, which is an ...
Adam Falkowski, Giovanni Grilli di Cortona, Zahra Tabrizi   +2 more
doaj   +3 more sources