172 citations · 290 across the 25 of their papers we have counts for
10 papers · 1 filter
New parton distribution functions of the real photon
Madhav Chithirasreemadam, Vadim Guzey, Felix Hekhorn +2
Precise determination of the partonic structure of real photons has attracted renewed interest in view of ongoing studies of high-energy photon-induced processes in ultraperipheral…
Taking dimuon production in DIS to NNLO precision
Ilkka Helenius, Hannu Paukkunen, Sami Yrjänheikki
We present an updated calculation of dimuon production in neutrino-nucleus collisions - an important constraint of the relatively poorly-known strange-quark distribution - at next-…
Multiplicative NLO matching in DIS with Pythia 8
Ilkka Helenius, Joni O. Laulainen, Christian T. Preuss
We present a new multiplicative next-to-leading order (NLO) matching scheme in Pythia 8 for deep-inelastic scattering (DIS) processes in electron-proton collisions. The implementat…
Associated + charm production: indications for PDF analysis
Ville Alanko, Ilkka Helenius, Hannu Paukkunen
The strange quark and antiquark contents of the proton remain weakly constrained compared to the other light quarks, particularly the asymmetry between the two. Production of a $W^…
Towards new D meson fragmentation functions
Manuel Epele, Felix Hekhorn, Ilkka Helenius +2
The Heavy Meson (Hymn) collaboration presents a new extraction of D meson fragmentation functions using experimental data from LEP and LHC. We focus particularly on kinematical reg…
Simultaneous production of a boson and a charmed hadron at the LHC in general-mass variable-flavour-number scheme
Ville Alanko, Ilkka Helenius, Hannu Paukkunen
The simultaneous production of a boson and a charmed hadron in proton-proton collisions offers a potential probe for constraining the strange quark parton distribution func…
VALO1.0: New real-photon parton distributions with Monte Carlo uncertainties
Madhav Chithirasreemadam, Vadim Guzey, Felix Hekhorn +2
Performing a global QCD analysis of data on the photon structure function in scattering, we determine new leading order (LO) and next-to-leading (NLO) parton…
Inclusive charm and bottom quark pair production cross sections at hadron colliders at next-to-next-to-leading-order accuracy
David d'Enterria, Felix Hekhorn, Ilkka Helenius +2
The inclusive cross sections for charm () and bottom () quark-antiquark pair production in proton-proton, proton-a…
Multiplicative matching of neutral current deep-inelastic scattering processes at next-to-leading order in PYTHIA 8
Ilkka Helenius, Joni O. Laulainen, Christian T. Preuss
We introduce a method for matching the neutral-current deep inelastic scattering process with parton showers in Pythia 8, at first order in the strong coupling. The implementation,…
Dimuon production in neutrino-nucleus collisions at next-to-next-to-leading order in perturbative QCD
Ilkka Helenius, Hannu Paukkunen, Sami Yrjänheikki
Charm production in charged-current neutrino-nucleus deep-inelastic scattering (DIS), measured through dimuon final states, remains an important constraint of strangeness in global…