Results 1 to 10 of about 2,918,060 (184)

Analytic results for electroweak precision observables at NLO in SMEFT

Journal of High Energy Physics
We present analytic results for electroweak precision observables (EWPO) at next-to-leading order (NLO) in dimension-six SMEFT, with no assumptions on the flavour structure of SMEFT Wilson coefficients. The results are given in five different electroweak
Anke Biekötter, Benjamin D. Pecjak
doaj   +2 more sources

A sensitivity study of triboson production processes to dimension-6 EFT operators at the LHC

Journal of High Energy Physics, 2023
We present the first parton-level study of anomalous effects in triboson production in both fully and semi-leptonic channels in proton-proton collisions at 13 TeV at the Large Hadron Collider (LHC).
R. Bellan, S. Bhattacharya, G. Boldrini, F. Cetorelli, P. Govoni, A. Massironi, A. Mecca, C. Tarricone, A. Vagnerini   +8 more
doaj   +1 more source

A sensitivity study of VBS and diboson WW to dimension-6 EFT operators at the LHC

Journal of High Energy Physics, 2022
We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the Standard Model Effective Field Theory (SMEFT).
R. Bellan, G. Boldrini, D. Brambilla, I. Brivio, R. Brusa, F. Cetorelli, M. Chiusi, R. Covarelli, V. Del Tatto, P. Govoni, A. Massironi, L. Olivi, G. Ortona, G. Pizzati, A. Tarabini, A. Vagnerini, E. Vernazza, J. Xiao   +17 more
doaj   +1 more source

Supersymmetric explanation of the muon g – 2 anomaly with and without stable neutralino

Journal of High Energy Physics, 2022
In this paper we explore the possibility of explaining the muon g − 2 anomaly in various types of supersymmetric extensions of the Standard Model.
Manimala Chakraborti, Sho Iwamoto, Jong Soo Kim, Rafał Masełek, Kazuki Sakurai   +4 more
doaj   +1 more source

Anomalous triple gauge couplings in electroweak dilepton tails at the LHC and interference resurrection

Journal of High Energy Physics, 2023
We study the electroweak dilepton production with two forward jets at the LHC, aiming to measure the anomalous triple gauge couplings in the Effective Field Theory (EFT) approach.
Haeyun Hwang, Ui Min, Junghyeon Park, Minho Son, Jae Hyeok Yoo   +4 more
doaj   +1 more source

Probing new physics through entanglement in diboson production

Journal of High Energy Physics, 2023
Pair production of heavy vector bosons is a key process at colliders: it allows to test our understanding of the Standard Model and to explore the existence of new physics through precision measurements of production rates and differential distributions.
Rafael Aoude, Eric Madge, Fabio Maltoni, Luca Mantani   +3 more
doaj   +1 more source

The Gauge-Higgs legacy of the LHC run II

SciPost Physics, 2019
We present a global analysis of the Higgs and electroweak sector based on LHC Run II and electroweak precision observables. We show which measurements provide the leading constraints on Higgs-related operators, and how the achieved LHC precision makes
Anke Biekoetter, Tyler Corbett, Tilman Plehn
doaj   +1 more source

SMEFT analysis of m W

Journal of High Energy Physics, 2022
We use the Fitmaker tool to incorporate the recent CDF measurement of m W in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SMEFT) including dimension-6 operators at linear order. We find that including
Emanuele Bagnaschi, John Ellis, Maeve Madigan, Ken Mimasu, Veronica Sanz, Tevong You   +5 more
doaj   +1 more source

Electroweak input schemes and universal corrections in SMEFT

Journal of High Energy Physics, 2023
The choice of an electroweak (EW) input scheme is an important component of perturbative calculations in Standard Model Effective Field Theory (SMEFT).
Anke Biekötter, Benjamin D. Pecjak, Darren J. Scott, Tommy Smith   +3 more
doaj   +1 more source

Electroweak renormalization based on gauge-invariant vacuum expectation values of non-linear Higgs representations. Part I. Standard Model

Journal of High Energy Physics, 2022
The renormalization of vacuum expectation value parameters, such as v in the Standard Model (SM), is an important ingredient in electroweak renormalization, where this issue is connected to the treatment of tadpoles. Tadpole counterterms can be generated
Stefan Dittmaier, Heidi Rzehak
doaj   +1 more source