Results 51 to 60 of about 510 (133)
Annalen der Physik, Volume 536, Issue 1, January 2024.A primer on axion physics, emphasizing an intuitive understanding of why the axion solves the strong CP problem. Abstract The canonical axion potential is reviewed, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields.
Felix Yu
wiley +1 more source
Higgs‐induced screening mechanisms in scalar‐tensor theories
Annals of the New York Academy of Sciences, Volume 1531, Issue 1, Page 95-103, January 2024.Abstract We consider the theory of a light conformally coupled scalar field, that is, one that is coupled directly to the Ricci scalar of the gravitational sector. This theory can be written equivalently as one of a light scalar that is coupled to the Standard Model of particle physics with a particular combination of Higgs‐portal couplings.
Clare Burrage, Peter Millington
wiley +1 more source
Massive two-loop four-point Feynman integrals at high energies with AsyInt
Journal of High Energy PhysicsWe present analytic techniques for parametric integrations of massive two-loop four-point Feynman integrals at high energies, and their implementation in the toolbox AsyInt. In the high-energy region, the Feynman integrals involving external and internal
Hantian Zhang
doaj +1 more source
Journal of High Energy PhysicsTri-boson production together with vector-boson scattering is a privileged channel to study the electroweak structure of the Standard Model. Upcoming LHC running stages will allow to measure these processes at unprecedented accuracy and for all possible ...
Ansgar Denner +3 more
doaj +1 more source
Testing the neutrino content of the muon at muon colliders
Journal of High Energy PhysicsCollinear emission of W bosons off a high-energy muon induces a large muon-neutrino component among the Parton Distribution Functions (PDFs) of a muon. In this paper we study the phenomenology related to the ν μ PDF at future high-energy muon colliders ...
Rodolfo Capdevilla +3 more
doaj +1 more source
Electroweak corrections to Higgs+jet production in gluon fusion
Journal of High Energy PhysicsWe present the calculation of complete next-to-leading order electroweak corrections to the Higgs boson production in gg → gH channel. We apply the method of differential equations combined with the selection of optimized master integrals to accomplish ...
Long-Bin Chen, Hai Tao Li, Wen-Long Sang
doaj +1 more source
Electroweak splitting functions in the Standard Model and beyond
Journal of High Energy PhysicsWe derive quasi-collinear factorization formulas in generic spontaneously broken gauge theories with scalars, fermions, and vector bosons. Specifically, we obtain polarized leading-order splitting functions for all possible final-state and initial-state ...
Stefan Dittmaier, Max Reyer
doaj +1 more source
Two-loop running effects in Higgs physics in Standard Model Effective Field Theory
Journal of High Energy PhysicsWe consider the renormalization group equations within the Standard Model Effective Field Theory and compute two-loop contributions proportional to the top quark Yukawa coupling for the operator generating an effective Higgs-gluon coupling, focusing on ...
Stefano Di Noi +2 more
doaj +1 more source
Quantum entanglement is quantum: ZZ production at the LHC
Journal of High Energy PhysicsPolarization and spin correlations in diboson systems serve as powerful tools for precision tests and searches for new physics. Recently, interpreting these observables through the lens of quantum information, for instance by examining whether the ...
Dorival Gonçalves +3 more
doaj +1 more source
Electroweak corrections in the SMEFT: four-fermion operators at high energies
Journal of High Energy PhysicsIn the Standard Model (SM), electroweak (EW) corrections become significant at high energies, particularly at the tera-electronvolt scale and beyond, due to the presence of Sudakov logarithms.
Hesham El Faham +5 more
doaj +1 more source