Results 31 to 40 of about 2,966 (100)
Higgs characterisation in the presence of theoretical uncertainties and invisible decays
While the Higgs characterisation programme is well under way, direct signs for new physics beyond the Standard Model remain elusive. Performing a fit of fully differential Higgs production cross sections at the LHC to a subset of Higgs-relevant effective
Christoph Englert+3 more
doaj +1 more source
Reweighting a parton shower using a neural network: the final-state case
The use of QCD calculations that include the resummation of soft-collinear logarithms via parton-shower algorithms is currently not possible in PDF fits due to the high computational cost of evaluating observables for each variation of the PDFs ...
Enrico Bothmann, Luigi Del Debbio
doaj +1 more source
The on-shell expansion: from Landau equations to the Newton polytope
We study the application of the method of regions to Feynman integrals with massless propagators contributing to off-shell Green’s functions in Minkowski spacetime (with non-exceptional momenta) around vanishing external masses, p i 2 → 0 $$ {p}_i^2\to 0
Einan Gardi+4 more
doaj +1 more source
N=1 Euler Anomaly from RG-dependent metric-Background
We consider N = 1supersymmetric gauge theories in the conformal window. By applying a suitable matter superfield- and Weyl-transformation the renormalisation group running of the theory is absorbed into the metric.
Prochazka Vladimir, Zwicky Roman
doaj +1 more source
We show how an inaccurate determination of experimental uncertainty correlations in high-precision LHC measurements may undermine the reliability of the associated $$\chi ^2$$ χ 2 .
Zahari Kassabov+2 more
doaj +1 more source
Tensor reduction for Feynman integrals with Lorentz and spinor indices
We present an efficient graphical approach to construct projectors for the tensor reduction of multi-loop Feynman integrals with both Lorentz and spinor indices in D dimensions.
Jae Goode+4 more
doaj +1 more source
Wave scattering event shapes at high energies
We study the space and properties of global and local observables for radiation emitted in the scattering of a massive scalar field in gauge and gravitational plane-wave backgrounds, in both the quantum and classical theory. We first compute the radiated
Riccardo Gonzo, Anton Ilderton
doaj +1 more source
Parton distributions from lattice data: the nonsinglet case
We revise the relation between Parton Distribution Functions (PDFs) and matrix elements computable from lattice QCD, focusing on the quasi-Parton Distribution Functions (qPDFs) approach.
Krzysztof Cichy+2 more
doaj +1 more source
Reconstruction of physics objects at the Circular Electron Positron Collider with Arbor
After the Higgs discovery, precise measurements of the Higgs properties and the electroweak observables become vital for the experimental particle physics. A powerful Higgs/Z factory, the Circular Electron Positron Collider (CEPC) is proposed.
Manqi Ruan+18 more
doaj +1 more source
Directly probing the Higgs-top coupling at high scales
We explore the sensitivity to new physics for the coupling of the Higgs boson (h) and top quark (t) at high energy scales with the process pp→tt¯h at the high-luminosity LHC.
Roshan Mammen Abraham+4 more
doaj