A. Massironi

ORCID: 0000-0002-0782-0883
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About
Contact & Profiles
Research Areas
  • 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
  • Cosmology and Gravitation Theories
  • Computational Physics and Python Applications
  • Neutrino Physics Research
  • Astrophysics and Cosmic Phenomena
  • Black Holes and Theoretical Physics
  • Medical Imaging Techniques and Applications
  • Distributed and Parallel Computing Systems
  • Particle Accelerators and Free-Electron Lasers
  • Nuclear reactor physics and engineering
  • Radiation Detection and Scintillator Technologies
  • Superconducting Materials and Applications
  • Gamma-ray bursts and supernovae
  • Atomic and Subatomic Physics Research
  • International Science and Diplomacy
  • Classical Studies and Legal History
  • Optical properties and cooling technologies in crystalline materials
  • Big Data Technologies and Applications
  • Radiation Therapy and Dosimetry
  • Nuclear physics research studies
  • Historical Economic and Legal Thought

University of Milano-Bicocca
2015-2025

Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca
2013-2025

Northeastern University
2013-2023

European Organization for Nuclear Research
2012-2022

Universidad del Noreste
2017

Center for Migration Studies of New York
2014-2015

University at Buffalo, State University of New York
2015

Boston University
2014

Northwestern University
2014

University of Milan
2010-2013

Inclusive Higgs boson production at large transverse momentum is induced by different channels. We focus on the leading through gluon fusion, and perform a consistent combination of state art calculations obtained in infinite-top-mass effective theory next-to-next-to-leading order (NNLO) full Standard Model (SM) next-to-leading (NLO). thus present approximate QCD predictions for this process NNLO, study corresponding perturbative uncertainties. This calculation then compared with those...

10.21468/scipostphyscore.7.1.001 article EN cc-by SciPost Physics Core 2024-01-04

We present the activities of "New Physics" working group for "Physics at TeV Colliders" workshop (Les Houches, France, 3--21 June, 2013). Our report includes new computational tool developments, studies implications Higgs boson discovery on physics, important signatures searches natural physics LHC, flavour aspects and assessments interplay between direct dark matter LHC.

10.48550/arxiv.1405.1617 preprint EN other-oa arXiv (Cornell University) 2014-01-01

We present a parton-level study of electro-weak production vector-boson pairs at the Large Hadron Collider, establishing sensitivity to set dimension-six operators in Standard Model Effective Field Theory (SMEFT). Different final states are statistically combined, and we discuss how orthogonality interdependence different analyses must be considered obtain most stringent constraints. The main novelties our inclusion SMEFT effects non-resonant diagrams irreducible QCD backgrounds, an...

10.1007/jhep05(2022)039 article EN cc-by Journal of High Energy Physics 2022-05-06

A bstract We present the first parton-level study of anomalous effects in triboson production both fully and semi-leptonic channels proton-proton collisions at 13 TeV Large Hadron Collider (LHC). The sensitivity to anomalies induced by a minimal set bosonic dimension-6 operators from Warsaw basis is evaluated with specific analyses for each final state. likelihood-based strategy employed assess most sensitive kinematic observables per channel, where contribution Effective Field Theory...

10.1007/jhep08(2023)158 article EN cc-by Journal of High Energy Physics 2023-08-23

Abstract The increasing LHC luminosity in Run III and, consequently, the increased number of simultaneous proton-proton collisions (pile-up) pose significant challenges for CMS experiment. These will affect not only data taking conditions, but also processing environment CMS, which requires an improvement online triggering system to match required detector performance. In order mitigate collision rates and complexity a single event, various approaches are being investigated. Heterogenous...

10.1088/1742-6596/1525/1/012040 article EN Journal of Physics Conference Series 2020-04-01

High-Luminosity running at the LHC, which is planned for 2022 and beyond, will imply an order of magnitude increase in radiation levels particle fluences with respect to present LHC conditions. The performance evolution CMS electromagnetic calorimeter (ECAL), comprising 75,848 scintillating lead tungstate crystals, indicates that upgrade its endcaps be needed HL-LHC running, ensure adequate performance. Results from collision periods, beam tests laboratory measurements proton-irradiated...

10.48550/arxiv.1409.2985 preprint EN other-oa arXiv (Cornell University) 2014-01-01

10.1038/s41567-022-01761-2 article EN Nature Physics 2023-02-09

The upgrade of the Compact Muon Solenoid (CMS) crystal electromagnetic calorimeter (ECAL), which will operate at High Luminosity Large Hadron Collider (HL-LHC), achieve a timing resolution around 30 ps for high energy photons and electrons. In this talk we discuss benefits precision ECAL event reconstruction HL-LHC. Simulation studies focused on properties PbWO4 crystals, as well impact photosensors readout electronics performance, be presented. Test beam intended to measure performance...

10.1088/1748-0221/13/04/c04003 article EN Journal of Instrumentation 2018-04-03

The CMS electromagnetic calorimeter (ECAL) is a high-resolution, hermetic, and homogeneous made of 75,848 scintillating lead tungstate crystals. Following the discovery Higgs boson, ECAL at forefront precision measurements search for new physics in data from LHC, which recently began producing collisions unprecedented energy 13 TeV. exceptional ECAL, as well its timing performance, are invaluable tools LHC Run 2. excellent performance relies on precise calibration maintained over time,...

10.48550/arxiv.1510.02745 preprint EN other-oa arXiv (Cornell University) 2015-01-01

The electromagnetic calorimeter (ECAL) of the Compact Muon Solenoid Experiment (CMS) started operating at Large Hadron Collider (LHC) in Spring 2015 with proton-proton collisions 13 TeV center-of-mass energy and a reduced bunch spacing 25 ns. instantaneous luminosity during LHC Run 2 is expected to exceed levels achieved 1 significantly. In this talk we present new reconstruction algorithms calibration strategies maintain superb performance CMS ECAL under these challenging conditions. We...

10.1109/nssmic.2015.7581771 article EN 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) 2015-10-01

Fin dal XVI secolo la scienza criminalistica di area tedesca interpreta le disposizioni della Constitutio Criminalis Carolina relative all’intervento del difensore nel processo, meno severe rispetto a quelle delle coeve normative europee, da un lato delineando l’avvocato sempre piu come persona esperta diritto, dall’altro limitandone l’azione, per non contrastare speditezza e l’efficienza perseguite processo stampo inquisitorio. Questa prospettiva influenza scelte dei legislatori austriaci,...

10.13130/2464-8914/12521 article IT Italian Review of Legal History 2015-12-06

The measurement of Higgs pair production will be one the cornerstones LHC physics program in coming years, with upcoming high-energy and high-luminosity phase. Vector Boson Fusion (VBF) channel probes directly coupling new to gauge bosons, addition reducing background contribution. via VBF an heavy object on-shell, subsequently decaying a boson pair, may occur: case KK-graviton from warped extra dimension models taken as benchmark. In addition, channel, pairs is sensitive strong interactions...

10.22323/1.203.0129 article EN cc-by-nc-sa 2014-09-25

Vector Boson Scattering (VBS) and Fusion (VBF) studies in pp collisions at 7 8 TeV center of mass energy based on data recorded by the CMS detector LHC 2011 2012 are reported.

10.48550/arxiv.1409.2990 preprint EN other-oa arXiv (Cornell University) 2014-01-01

We present the first parton-level study of anomalous effects in triboson production both fully and semi-leptonic channels proton-proton collisions at 13 TeV Large Hadron Collider (LHC). The sensitivity to anomalies induced by a minimal set bosonic dimension-6 operators from Warsaw basis is evaluated with specific analyses for each final state. A likelihood-based strategy employed assess most sensitive kinematic observables per channel, where contribution Effective Field Theory parameterized...

10.48550/arxiv.2303.18215 preprint EN other-oa arXiv (Cornell University) 2023-01-01
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