Results 21 to 30 of about 295,325 (235)

Higgs in space! [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2010
We consider the possibility that the Higgs can be produced in dark matter annihilations, appearing as a line in the spectrum of gamma rays at an energy determined by the masses of the WIMP and the Higgs itself. We argue that this phenomenon occurs generally in models in which the the dark sector has large couplings to the most massive states of the SM ...
Jackson, C.B.   +4 more
openaire   +4 more sources

Regularising experimental correlations in LHC data: theory and application to a global analysis of parton distributions

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
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

Basis invariant conditions for supersymmetry in the two-Higgs-doublet model [PDF]

open access: yes, 2010
The minimal supersymmetric standard model involves a rather restrictive Higgs potential with two Higgs fields. Recently, the full set of classes of symmetries allowed in the most general two Higgs doublet model was identified; these classes do not ...
G. C. Branco   +4 more
core   +2 more sources

Higgs cosmology [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018
The discovery of the Higgs boson in 2012 and other results from the Large Hadron Collider have confirmed the standard model of particle physics as the correct theory of elementary particles and their interactions up to energies of several TeV. Remarkably, the theory may even remain valid all the way to the Planck scale of quantum gravity, and therefore
openaire   +2 more sources

Electromagnetic finite-size effects beyond the point-like approximation [PDF]

open access: yesEPJ Web of Conferences, 2022
We present a model-independent and relativistic approach to analytically derive electromagnetic finite-size effects beyond the point-like approximation.
Di Carlo Matteo   +3 more
doaj   +1 more source

Discovery Prospects for NMSSM Higgs Bosons at the High-Energy Large Hadron Collider [PDF]

open access: yes, 2014
We investigate the discovery prospects for NMSSM Higgs bosons during the 13~TeV run of the LHC. While one of the neutral Higgs bosons is demanded to have a mass around 125~GeV and Standard Model (SM)-like properties, there can be substantially lighter ...
King, S. F.   +3 more
core   +2 more sources

Nuclear uncertainties in the determination of proton PDFs

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We show how theoretical uncertainties due to nuclear effects may be incorporated into global fits of proton parton distribution functions (PDFs) that include deep-inelastic scattering and Drell–Yan data on nuclear targets.
Richard D. Ball   +2 more
doaj   +1 more source

Boomerang webs up to three-loop order

open access: yesJournal of High Energy Physics, 2021
Webs are sets of Feynman diagrams which manifest soft gluon exponentiation in gauge theory scattering amplitudes: individual webs contribute to the logarithm of the amplitude and their ultraviolet renormalization encodes its infrared structure.
Einan Gardi   +6 more
doaj   +1 more source

The Higgs - photon - Z boson coupling revisited [PDF]

open access: yes, 1997
We analyze the coupling of CP-even and CP-odd Higgs bosons to a photon and a Z boson in extensions of the Standard Model. In particular, we study in detail the effect of charged Higgs bosons in two-Higgs doublet models, and the contribution of SUSY ...
A Abbassadi   +39 more
core   +2 more sources

Higgs descendants

open access: yesPhysical Review D, 2012
9 pages, 7 figures; version to appear in Phys. Rev.
Cheung, Clifford, Nomura, Yasunori
openaire   +4 more sources

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