Results 101 to 110 of about 654 (180)

Fermion-induced Electroweak Symmetry Non-restoration via Temperature-dependent Masses

, 2022
Standard Model (SM) and many extensions of SM predict that the electroweak (EW) symmetry was restored in the early universe when the temperature was around 160 GeV. However, recent studies showed that the interactions between some new scalars and SU(2)_L
Ng, Yu Hang
core  

Learning Feynman integrals from differential equations with neural networks

Journal of High Energy Physics
We perform an exploratory study of a new approach for evaluating Feynman integrals numerically. We apply the recently-proposed framework of physics-informed deep learning to train neural networks to approximate the solution to the differential equations ...
Francesco Calisto, Ryan Moodie, Simone Zoia   +2 more
doaj   +1 more source

Precision Calculations of Electroweak Phase Transitions

We present a detailed study of the precision calculations of higher-order contributions to effective potential with the application of three-dimensional effective field theories (3D EFTs).
Löschner, Maximilian
core  

Higher-Order Hadronic Contributions to the Anomalous Magnetic Moment of Leptons Bernd Krause

, 1996
Higher-order hadronic contributions to the anomalous magnetic moment of the electron, muon, and ø lepton are considered in detail. As a main result we find a reduction by \Gamma11 \Theta 10 \Gamma11 for the g-2 of the muon as compared to previous ...
Institut Fur, Bernd Krause
core  

Nonperturbative QCD corrections to electroweak observables [PDF]

, 2011
Nonperturbative QCD corrections are important to many low-energy electroweak observables, for example the muon magnetic moment. However, hadronic corrections also play a significant role at much higher energies due to their impact on the running of ...
Dru B Renner, Xu Feng, Karl Jansen, Marcus Petschlies
core  

Documentation of $\texttt{TauSpinner}$ approach for electroweak corrections in LHC $Z\rightarrow \ell \ell $ observables

, 2019
The LHC Standard Model Z-boson couplings measurements approach the LEP legacy precision. The calculations of electroweak (EW) corrections available for the Monte Carlo generators become of relevance.
Richter-Wąs, Elżbieta, Z. Was, Wąs, Z., E. Richter-Was   +3 more
core   +1 more source

Quantum properties of H → VV *: precise predictions in the SM and sensitivity to new physics

Journal of High Energy Physics
We study the quantum properties of the Higgs-boson decays into four fermions via two vector bosons (H → VV * → 4f). In particular, we focus on the case of two different-flavour lepton pairs (H → ZZ * → μ + μ − e + e − ).
Morgan Del Gratta, Federica Fabbri, Priyanka Lamba, Fabio Maltoni, Davide Pagani   +4 more
doaj   +1 more source

Complete NLO corrections to top-quark pair production with isolated photons

Journal of High Energy Physics
We compute for the first time the so-called complete NLO corrections to top-quark pair production with one and two isolated photons in the di-lepton top-quark decay channel.
Daniel Stremmer, Malgorzata Worek
doaj   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

Higgs collider phenomenology: important backgrounds, naturalness probes and the electroweak phase transition.

, 2017
The Higgs boson discovered in 2012, might be the portal to new physics. With the Higgs as the common theme we present the following research arcs. In order to study the Higgs, it is important to have a very good handle on Standard model(SM) backgrounds ...
Ramani, Harikrishnan
core