Fabio Maltoni
A5054634050- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Cosmology and Gravitation Theories
- Superconducting Materials and Applications
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- International Science and Diplomacy
- Quantum and electron transport phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Scientific Research and Discoveries
- Radiation Detection and Scintillator Technologies
- Scientific Computing and Data Management
- Quantum Mechanics and Applications
- Medical Imaging Techniques and Applications
- Muon and positron interactions and applications
- Advanced Data Storage Technologies
- Quantum Information and Cryptography
- Quantum, superfluid, helium dynamics
UCLouvain
2015-2024
Osservatorio astronomico di Bologna
2022-2024
University of Bologna
2019-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
1996-2024
University of Milano-Bicocca
2024
GNA University
2024
Difa Cooper (Italy)
2023
University College Lahore
2022
Arthur B. McDonald-Canadian Astroparticle Physics Research Institute
2021
Queen's University
2021
We discuss the theoretical bases that underpin automation of computations tree-level and next-to-leading order cross sections, their matching to parton shower simulations, merging matched samples differ by light-parton multiplicities. present a computer program, MadGraph5_aMC@NLO, capable handling all these -- parton-level fixed order, shower-matched, merged in unified framework whose defining features are flexibility, high level parallelisation, human intervention limited input physics...
MadGraph 5 is the new version of matrix element generator, written in Python programming language. It implements a number new, efficient algorithms that provide improved performance and functionality all aspects program. features user interface, several output formats including C++ process libraries for Pythia 8, full compatibility with FeynRules physics models implementation, allowing event generation any model can be form Lagrangian. builds on same philosophy as previous versions, its...
We compare different procedures for combining fixed-order tree-level matrix-element generators with parton showers. use the case of W-production at Tevatron and LHC to implementations so-called CKKW MLM schemes using cascades. find that although similar results are obtained in all cases, there important differences.
This Report summarizes the results of activities in 2012 and first half 2013 LHC Higgs Cross Section Working Group. The main goal working group was to present state art Physics at LHC, integrating all new that have appeared last few years. report follows Handbook Sections: 1. Inclusive Observables (CERN-2011-002) second 2. Differential Distributions (CERN-2012-002). After discovery a boson mid-2012 this focuses on refined prediction Standard Model (SM) phenomenology around experimentally...
This Report summarizes the results of first 10 months' activities LHC Higgs Cross Sections Working Group. The main goal working group was to present status-of-art on Physics at integrating all new that have appeared in last few years. is more than a mere collection proceedings general meetings. subgroups been different directions. An attempt has made from these complete and homogeneous form. subgroups' contributions correspondingly comprise parts Report. A significant amount work performed...
This report presents the capabilities of CMS experiment to explore rich heavy-ion physics programme offered by CERN Large Hadron Collider (LHC). The collisions lead nuclei at energies , will probe quark and gluon matter unprecedented values energy density. prime goal this research is study fundamental theory strong interaction — Quantum Chromodynamics (QCD) in extreme conditions temperature, density parton momentum fraction (low-x).
We present the complete automation of computation one-loop QCD corrections, including UV renormalization, to an arbitrary scattering process in Standard Model. This is achieved by embedding OPP integrand reduction technique, as implemented CutTools, into MadGraph framework. By interfacing tool so constructed, which we dub MadLoop, with MadFKS, fully automatic any infrared-safe observable at next-to-leading order attained. demonstrate flexibility and reach our method calculating production...
Measurements of inclusive charged-hadron transverse-momentum and pseudorapidity distributions are presented for proton-proton collisions at $\sqrt{s} = 0.9 $ 2.36 TeV. The data were collected with the CMS detector during LHC commissioning in December 2009. For non-single-diffractive interactions, average transverse momentum is measured to be 0.46 ± 0.01 (stat.) (syst.) GeV/c TeV 0.50 TeV, pseudorapidities between --2.4 +2.4. At these energies, densities central region, dN ch/dη||η|<0.5, 3:48...
This document aims to provide an assessment of the potential future colliding beam facilities perform Higgs boson studies. The analysis builds on submissions made by proponents colliders European Strategy Update process, and takes as its point departure results expected at completion HL-LHC program. report presents quantitative many aspects physics for collider projects sufficient maturity using uniform methodologies.
We present the total cross sections at next-to-next-to-leading order in strong coupling for Higgs boson production via weak-boson fusion. Our results are obtained structure function approach, which builds upon approximate, though very accurate, factorization of QCD corrections between two quark lines. The theoretical uncertainty on LHC from higher and parton distribution uncertainties estimated 2% level each a wide range masses.
This document is the final report of ATLAS-CMS Dark Matter Forum, a forum organized by ATLAS and CMS collaborations with participation experts on theories Matter, to select minimal basis set dark matter simplified models that should support design early LHC Run-2 searches. A prioritized, compact benchmark proposed, accompanied studies parameter space these repository generator implementations. also addresses how apply Effective Field Theory formalism for collider searches present results...
A bstract We introduce a framework, based on an effective field theory approach, that allows one to perform characterisation studies of the boson recently discovered at LHC, for all relevant channels and in consistent, systematic accurate way. The production decay such with various spin parity assignments can be simulated by means multi-parton, tree-level matrix elements next-to-leading order QCD calculations, both matched parton showers. Several sample applications are presented which show,...
We present predictions for the SM-Higgs-pair production channels of relevance at LHC: gluon–gluon fusion, VBF, and top-pair, W, Z single-top associated production. All these results are NLO accuracy in QCD, matched to parton showers by means [email protected] method; hence, they fully differential. With exception fusion process, which a special treatment is needed order improve upon infinite-top-mass limit, our obtained automatic way within publicly available framework. show that all...
A bstract We provide a comprehensive global analysis of Run II top measurements at the LHC in terms dimension-6 operators. distinctive feature sector as compared to Higgs-electroweak is large number four-quark discuss detail how they can be tested and quadratic lead stable limit on each individual Wilson coefficient. Predictions for all observables are computed NLO QCD. Our SF itter framework features detailed error treatment, including correlations between uncertainties.
A bstract We present a global interpretation of Higgs, diboson, and top quark production decay measurements from the LHC in framework Standard Model Effective Field Theory (SMEFT) at dimension six. constrain simultaneously 36 independent directions its parameter space, compare outcome analysis with that individual two-parameter fits. Our results are obtained by means state-of-the-art theoretical calculations for SM EFT cross-sections, account both linear quadratic corrections 1 / Λ 2...
We present the automation of one-loop computations in standard-model effective field theory at dimension six. Our general implementation, dubbed SMEFT@NLO, covers all types operators: bosonic, two- and four-fermion ones. Included ultraviolet rational counterterms presently allow for fully differential predictions, possibly matched to parton shower, up level strong coupling or four-quark operator coefficients. Exact flavor symmetries are imposed among light quark generations an initial focus...