Results 21 to 30 of about 36,180 (205)
Building a consistent parton shower [PDF]
Journal of High Energy Physics, 2020 Modern parton showers are built using one of two models: dipole showers or angular ordered showers. Both have distinct strengths and weaknesses. Dipole showers correctly account for wide-angle, soft gluon emissions and track the leading flows in QCD ...
Jeffrey R. Forshaw +2 more
doaj +3 more sources
Unitarising Matrix Element + Parton Shower merging [PDF]
Journal of High Energy Physics, 2012 We revisit the CKKW-L method for merging tree-level matrix elements with parton showers, and amend it with an add/subtract scheme to minimise dependencies on the merging scale.
Lonnblad, Leif, Prestel, Stefan
core +2 more sources
Higgs characterisation via vector-boson fusion and associated production: NLO and parton-shower effects. [PDF]
Eur Phys J C Part Fields, 2014 Maltoni F, Mawatari K, Zaro M.
europepmc +2 more sources
Parton-shower effects in polarized deep inelastic scattering
Journal of High Energy PhysicsWe present a Monte-Carlo program for the simulation of polarized deep inelastic scattering at next-to-leading order in QCD matched to parton shower programs building on an existing implementation of the unpolarized case in the POWHEG BOX package.
Ignacio Borsa, Barbara Jäger
doaj +2 more sources
Subleading Nc improved parton showers [PDF]
Journal of High Energy Physics, 2012 Abstract We describe an algorithm for improving subsequent parton shower emissions by full SU(3) color correlations in the framework of a dipole-type shower. As a proof of concept, we present results from the first implementation of such an algorithm for a final state shower.
Plätzer, S., Sjödahl, M.
openaire +6 more sources
Strangeness Enhancement at LHC Energies Using the Thermal Model and EPOSLHC Event Generator
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 The strangeness enhancement signature of QGP formation at LHC energies is carefully tackled in the present study. Based on HRG, the particle ratios of mainly strange and multistrange particles are studied at energies from lower s~0.001 up to 13 TeV. The strangeness enhancement clearly appeared at more high energies, and the ratios are confronted to the
Mahmoud Hanafy +3 more
wiley +1 more source
On the Interpretation of Nonresonant Phenomena at Colliders
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 With null results in resonance searches at the LHC, the physics potential focus is now shifting towards the interpretation of nonresonant phenomena. An example of such shift is the increased popularity of the EFT programme. We can embark on such programme owing to the good integrated luminosity and an excellent understanding of the detectors, which ...
Miguel G. Folgado +2 more
wiley +1 more source
Spin correlations in parton shower simulations [PDF]
The European Physical Journal C, 2020 AbstractSpin correlations are an important, but often neglected, effect in modern Monte Carlo event generators. We show that they can be fully incorporated in Herwig7 using the algorithm originally proposed by Collins and Knowles in all stages of the event generation process and between the different stages of the event generation.
Richardson, Peter, Webster, Stephen
openaire +5 more sources
LHC Signals of the Next‐to‐Lightest Scalar Higgs State of the NMSSM in the 4τ Decay Channel
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We study the a1a1 and Za1 decay channels of the next‐to‐lightest CP‐even Higgs boson h2 of the NMSSM at the LHC, where the h2 is produced in gluon fusion. It is found that while the h2 discovery is impossible through the latter channel, the former one in the 4τ final state is a promising channel to discover the h2 with masses up to around 250 GeV at ...
M. M. Almarashi, Jouni Suhonen
wiley +1 more source
Parton Showers beyond Leading Logarithmic Accuracy [PDF]
Physical Review Letters, 2020 Parton showers are among the most widely used tools in collider physics. Despite their key importance, none so far has been able to demonstrate accuracy beyond a basic level known as leading logarithmic (LL) order, with ensuing limitations across a broad spectrum of physics applications.
Dasgupta, Mrinal +5 more
openaire +6 more sources