Base programmes 2019

Theory

Programme Leader

Robert Fleischer

Spectrum of research highlights

  • F. Herzog, S. Moch, B. Ruijl, T. Ueda, J. Vermaseren, A. Vogt, Five-loop contributions to low-N non-singlet anomalous dimensions in QCD
  • J. de Vries, G. Falcioni, F. Herzog, B. Ruijl, Two- and three-loop anomalous dimensions of Weinberg’s dimension-six CP-odd gluonic operator
  • M. van Beekveld, W. Beenakker, R. Basu, E. Laenen, A. Misra, P. Motylinski, Next-to-leading power threshold effects for resummed prompt photon production
  • G. Lustermans, A. Papaefstathiou, W. Waalewijn, How much jet resummation do we need?
  • A. Papaefstathiou, S. Plaetzer, K. Sakurai, On the phenomenology of sphaleron-induced processes at the LHC and beyond
  • R. Gauld, Precise predictions for multi-TeV and PeV energy neutrino scattering rates
  • NNPDF Collaboration (Rabah Abdul Khalek et al.), Parton Distributions with Theory Uncertainties: General Formalism and First Phenomenological Studies
  • E. Nocera, M. Ubiali, C. Voisey, Single Top Production in PDF fits
  • S. Carrazza, C. Degrande, S. Iranipour, J. Rojo, M. Ubiali, Can New Physics hide inside the proton?
  • P. Mulders, C. Van Hulse, Noncollinearity in dijjet fragmentation in electron-positron scattering
  • M. Postma, J. van de Vis, Source terms for electroweak baryogenesis in vev-insertion approximation beyond leading order
  • R. Oncala, K. Petraki, Dark matter bound state formation via emission of a charged scalar
  • R. Fleischer, R. Jaarsma, G. Koole, Testing lepton flavour universality with (semi)-leptonic D(s) decays
  • S. van Beek, E. Nocera, J. Rojo, E. Slade, Constraining the SMEFT with Bayesian reweighting
  • S. Frixione, B. Fuks, V. Hirschi, K. Mawatari, H.-S. Shao, P.A. Sunder, M. Zaro, Automated simulations beyond the Standard Model: supersymmetry
  • M. van Beekveld, S. Caron, R. Ruiz de Austri, The current status of fine-tuning in supersymmetry
  • M. Borinsky, K. Vogtmann, The Euler characteristic of $Out(F_n)$

Computer codes

  • FORM 4.2 (J. Vermaseren, F. Herzog, T. Ueda, et al.)
  • MadGraph5_aMC@NLO (M. Zaro et al.)

Outreach:

Visitors:

Jose Ignacio Latorre (Barcelona and Singapore), Rohini Godbole (Bangalore), H. Dreiner (Bonn), Chris Quigg (FNAL), et al.

(Co)-organisation of Workshops and Conferences:

  • NNPDF Collaboration Meeting, Amsterdam, February 2019 (J. Rojo)
  • Physics and Beyond (P. van Vliet, P. Mulders)

Physics Data Processing

Programme Leader

Jeff Templon

Main points: scientific

  • Completion of GPU-based framework “Allen” for LHCb Trigger (R. Aaij)
  • Collaboration with ASTRON (Square Kilometer Array) on joint computing infrastructure for large-scale science (LHC, SKA, and KM3NeT)

Main points: technical

  • Installation of new dCache Grid storage server
  • New architecture for storage hardware
    • Servers using higher-performance POWER architecture
    • Introduction of warm and cold storage tiers
  • Hosted HEPiX Workshop in Amsterdam
  • Installation of European workload-submission infrastructure for VIRGO
  • Participation in specification of next Dutch Supercomputer
  • Key role in penetration tests of certain Dutch government organisations

Key positions in collaborations

  • WLCG Overview Board: Jeff Templon
  • Dutch National e-Infrastructure Executive Team: Jeff Templon and David Groep

Computer codes

  • OpenID Connect Federation – Metadata Signing Service
  • OpenID Connect Federation – Trust Chain Validation Library

Main paper in 2019

  • H. Short, D. Kelsey, D. Groep (et al.) , WISE Information Security for Collaborating e-Infrastructures, EPJ Web Conf. 214 (2019)03041

Detector R&D

Programme Leader

Niels van Bakel

Main points: scientific

  • Research on fast sensors for 4D tracking in LHC detector upgrades
  • ASIC design for detectors with high temporal resolution
  • Characterisation of a Gridpix Quad module for a future linear collider TPC
  • Development of various wavefront sensors for Advanced Virgo, and GW detector upgrades in general
  • X-ray detector research for industrial and medical applications, in collaboration with CWI (Flexray)
  • Sensitivity improvement of the Advanced Virgo GW detector
  • Member of the photo-receiver working group in the LISA consortium: developing quadrant photo-diodes for LISA, a space-based gravitational wave detector

Main points: technical

  • The Timepix4 readout chip: a new hybrid pixel detector chip with 200ps time resolution, makes faster timing possible in tracking detectors and X-ray imaging
  • The SPIDR4 system is available to readout the Timepix4 with up to 160 Gb/s per chip.
  • Started a ‘pilot’ collaboration with the TU-Delft Faculty of Aerospace Engineering on ‘Asteroid Muography’: using muons to characterize the interior of an asteroid with a detector on-board of a satellite
  • Realisation of an optical lab for photodetector research, optical techniques, and controls
  • A second generation low-noise readout chip for a 1 ng/sqrt(Hz)  MEMS accelerometer
  • Stacking of nano-membranes for a new type of photon detector

Key positions in collaborations

  • Commissioning coordinator Advanced Virgo – Matteo Tacca

Awards

  • NWO TTW Take-off: two-phase cooling for high performance datacenters – Martin van Beuzekom, InCooling.
  • ATTRACT: Seismic Imaging & Monitoring Systems – Niels van Bakel, Innoseis B.V.
  • ATTRACT: MEMS-made Photocathodes with High Quantum Efficiency – Harry v/d Graaf, Photonis

Main paper in 2019

  • High-performance phase camera as a frequency selective laser wavefront sensor for gravitational wave detectors – Kazuhiro Agatsuma, Laura van der Schaaf, Martin van Beuzekom, David Rabeling (Nikhef, Amsterdam), Jo van den Brand (Nikhef, Amsterdam & Vrije U., Amsterdam). 2019. 16 pp. Published in Opt.Express 27 (2019) no.13, 18533-18548