Results 21 to 30 of about 35,945 (210)

Subleading Nc improved parton showers [PDF]

open access: yesJournal 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

On the Interpretation of Nonresonant Phenomena at Colliders

open access: yesAdvances 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]

open access: yesThe 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

open access: yesAdvances 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]

open access: yesPhysical 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

T‐Odd Anomalous Interactions of the Top‐Quark at the Large Hadron Collider

open access: yesAdvances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
We study the effects of T‐odd interactions of top‐quark via the pair production of the top‐quark in the semileptonic detection modes at the Large Hadron Collider by means of the T‐odd observables constructed through the momenta of the observed decay products of the top (and anti‐top)‐quark for a wide range of CP‐violating scale Λ.
Apurba Tiwari   +2 more
wiley   +1 more source

Clan properties in parton showers [PDF]

open access: yesZeitschrift für Physik C Particles and Fields, 1994
(27 pages in Plain TeX plus 10 Postscript Figures, all compressed via uufiles) DFTT 7 ...
Ugoccioni, R., Giovannini, A., Lupia, S.
openaire   +2 more sources

The Physics Case for an Electron‐Muon Collider

open access: yesAdvances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
An electron‐muon collider with an asymmetric collision profile targeting multi‐ab-1 integrated luminosity is proposed. This novel collider, operating at collision energies of, e.g., 20–200 GeV, 50–1000 GeV, and 100–3000 GeV, would be able to probe charged lepton flavor violation and measure Higgs boson properties precisely. The collision of an electron
Meng Lu   +9 more
wiley   +1 more source

Multijet events and parton showers [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 1999
We propose a general approach for the description of multijet events in the framework of QCD event generators. We introduce a new algorithm to match parton showers and arbitrary matrix elements for the production of any number of jets via the strong or electroweak interaction. We developped a new parton cascade code capable to deal with multijet events
Krauss, F., Kuhn, R., Soff, G.
openaire   +3 more sources

Event Shape and Multiplicity Dependence of Freeze‐Out Scenario and System Thermodynamics in Proton+Proton Collisions at s=13 TeV Using PYTHIA8

open access: yesAdvances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
Recent observations of QGP‐like conditions in high‐multiplicity pp collisions from ALICE experiment at the LHC warrant an introspection whether to use pp collisions as a baseline measurement to characterize heavy‐ion collisions for the possible formation of a Quark‐Gluon Plasma.
Sushanta Tripathy   +5 more
wiley   +1 more source

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