CERN Accelerating science

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1.
NLO + parton-shower generator for Wc production in the POWHEG BOX RES / Ferrario Ravasio, Silvia (CERN) ; Oleari, Carlo (Milan Bicocca U. ; INFN, Milan Bicocca)
We present the implementation of a next-to-leading-order plus parton-shower event generator for the hadronic production of a heavy charm quark accompanied by a leptonically-decaying $W$ boson in the POWHEG BOX RES framework. We consider both signatures, i.e. [...]
arXiv:2304.13791; CERN-TH-2023-064.- 2023-07-31 - 25 p. - Published in : Eur. Phys. J. C 83 (2023) 684 Fulltext: document - PDF; 2304.13791 - PDF;
2.
Studies of $t\bar{t}/tW$ interference effects in $b\bar{b}\ell^{+}\ell^{-'}\nu\bar{\nu}'$ final states with Powheg and MG5_aMC@NLO setups
The precise simulation of $t\bar{t}$ processes is crucial for precision tests of the Standard Model and in the search for new physics at the Large Hadron Collider. [...]
ATL-PHYS-PUB-2021-042.
- 2021.
Original Communication (restricted to ATLAS) - Full text
3.
Parton-shower simulations of R-parity-violating SUSY / Richardson, Peter
2000 Transparencies: PS.GZ;
In : 8th International Conference on Supersymmetries in Physics, CERN, Geneva, Switzerland, 26 Jun - 1 Jul 2000, pp.e-proc.
4.
Underlying event sensitive observables in Drell-Yan production using GENEVA / Alioli, Simone (CERN) ; Bauer, Christian W. (LBL, Berkeley) ; Guns, Sam (LBL, Berkeley) ; Tackmann, Frank J. (DESY)
We present an extension of the GENEVA Monte Carlo framework to include multiple parton interactions (MPI) provided by PYTHIA8. This allows us to obtain predictions for underlying-event sensitive measurements in Drell-Yan production, in conjunction with GENEVA's fully-differential NNLO calculation, NNLL' resummation for the 0-jet resolution variable (beam thrust), and NLL resummation for the 1-jet resolution variable. [...]
arXiv:1605.07192; DESY-16-088; CERN-TH-2016-120.- 2016-11-09 - 24 p. - Published in : Eur. Phys. J. C 76 (2016) 614 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
5.
Trilinear Higgs boson coupling variations for di-Higgs production with full NLO QCD predictions in Powheg / Heinrich, G (Munich, Max Planck Inst.) ; Jones, S (CERN) ; Kerner, M (Zurich U.) ; Luisoni, G (Munich, Max Planck Inst.) ; Scyboz, L (Munich, Max Planck Inst.)
The couplings of the Higgs boson to other particles are increasingly well measured by the ATLAS and CMS experiments. The Higgs boson trilinear self-coupling however is still largely unconstrained, mainly due to the low cross-section for Higgs boson pair production. [...]
IOP, 2020 - 6 p. - Published in : J. Phys.: Conf. Ser. 1525 (2020) 012009 Published fulltext: PDF;
In : 19th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Saas Fee, Switzerland, 11 - 15 Mar 2019, pp.012009
6.
Top-pair production at the LHC with MiNNLO$_{\rm PS}$ / Mazzitelli, Javier (Munich, Max Planck Inst.) ; Monni, Pier Francesco (CERN) ; Nason, Paolo (INFN, Milan Bicocca) ; Re, Emanuele (INFN, Milan Bicocca ; Annecy, LAPTH) ; Wiesemann, Marius (Munich, Max Planck Inst.) ; Zanderighi, Giulia (Munich, Max Planck Inst. ; Tech. U., Munich (main))
We consider the production of a pair of heavy quarks and illustrate the derivation of the MiNNLO method to match next-to-next-to-leading order calculations with parton showers (NNLO+PS) for this class of processes. As a first application, we construct an event generator for the fully differential simulation of hadronic top-quark pair production at NNLO+PS and discuss all details of its implementation in a parton shower Monte Carlo framework. [...]
arXiv:2112.12135; CERN-TH-2021-220; MPP-2021-211; LAPTH-046/21; CERN-TH-2021-220,MPP-2021-211,LAPTH-046/21.- 2022-04-13 - 55 p. - Published in : JHEP 2204 (2022) 079 Fulltext: document - PDF; 2112.12135 - PDF;
7.
ZZ production in gluon fusion at NLO matched to parton-shower / Alioli, Simone (CERN) ; Caola, Fabrizio (CERN) ; Luisoni, Gionata (CERN) ; Röntsch, Raul (KIT, Karlsruhe, TP)
We present a calculation of the next-to-leading order (NLO) QCD corrections to the hadroproduction process $gg\to ZZ \to e^+e^- \mu^+ \mu^-$, matched to the parton shower in the POWHEG framework. We take advantage of the POWHEG BOX tool for the implementation and rely on PYTHIA 8 for the showering and hadronization stages. [...]
CERN-TH-2016-197; arXiv:1609.09719.- 2017-02-28 - 11 p. - Published in : Phys. Rev. D 95 (2017) 034042 APS Open Access article: PDF; Fulltext: PDF; Preprint: PDF; External link: Preprint
8.
Four-lepton production in gluon fusion at NLO matched to parton showers / Alioli, Simone (Milan Bicocca U.) ; Ferrario Ravasio, Silvia (Oxford U., Theor. Phys.) ; Lindert, Jonas M. (Sussex U., Astron. Ctr.) ; Röntsch, Raoul (CERN)
We present a calculation of the next-to-leading order (NLO) QCD corrections to gluon-induced electroweak gauge boson pair production, $gg \to ZZ$ and $gg \to W^+W^-$, matched to the PYTHIA8 parton shower in the POWHEG approach. The calculation consistently incorporates the continuum background, the Higgs-mediated $gg\to H^* \to VV$ process, and their interference. [...]
arXiv:2102.07783; IPPP/20/79; CERN-TH-2021-022.- 2021-08-03 - 15 p. - Published in : Eur. Phys. J. C 81 (2021) 687 Fulltext: document - PDF; 2102.07783 - PDF;
9. Recommendations of the Finance Committee to Council as to the Financing of the 1965 Supplementary Programme
Recommandations du Comité des Finances au Conseil au sujet du financement du programme supplémentaire pour 1965
CERN/0572
28th Session of Council ; 1964
English: PDF
French: PDF
10. Expenditure in Excess of Provisions
Dépassements de crédits
CERN/FC/0726/Add.
64th Meeting of Finance Committee ; 1964
English: PDF
French: PDF

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