J

Joint Research

Joint Research

N

Networking

Networking

T
V

Transnational Access

Virtual Access

Transnational Access

Virtual Access

Bienvenue WelcomeWillkommenBenvenutoBienvenidoto the STRONG-2020 website

STRONG-2020 “The strong interaction at the frontier of knowledge: fundamental research and applications” has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824093.

Objectives of the project

The strong interaction is one of the cornerstones of the Standard Model (SM) of particle physics, and its experimental and theoretical study attracts an active community of about 2500 researchers in Europe.

The list of fundamental open questions at the frontier of our current knowledge in the strong interaction is very rich and varied including a full understanding of (i) the partonic structure of hadrons, (ii) exotic hadronic states, properties of (iii) dense quark matter and of (iv) hot and dense quark-gluon plasma, as well as (v) precision tests of the SM. Such research topics are studied experimentally and theoretically mostly via particle collisions at low (a few tens of GeV) and high (up to 14 TeV) energies. Associated developments in state-of-the-art detectors/data-acquisition/beams/targets are required, as well as in theoretical (lattice, effective field, perturbative) calculations.

The STRONG-2020 project brings together many of the leading research groups and infrastructures involved today in the study of the strong interaction in Europe, and also exploits the innovation potential in applied research through the development of detector systems with applications beyond fundamental physics, e.g. for medical imaging and information technology. The Consortium includes 44 participant institutions, embracing 14 EU Member States, one International EU Interest Organization (CERN), and one EU candidate country. Together with host institutions of 21 other countries, without EU funds benefits, the project involves research in 36 countries. The project is structured in 32 Work Packages (WP): 7 Transnational Access Activities (TA), 2 Virtual Access Activities (VA), 7 Networking Activities (NA) and 14 Joint Research Activities (JRA). Furthermore, 2 WPs take care, respectively, of the “Management and Coordination” of the project and of “Communication and Outreach".

MANAGEMENT AND DISSEMINATION

MAN-Project Management and Coordination

The complexity of the STRONG-2020 Integrating Activity requires specific management structures and a dedicated highly-skilled team. MAN takes in charge the effective management, the steering of the whole project and the monitoring of the progress of all Work Packages including the planned scientific activities, industrial developments and applications as well as society issues. The management team ensures the contractual and administrative implementation. It will oversee the use of resources and prepare Periodic and Final Reports.

MAN-Project Management and Coordination

DISCO-Dissemination and Communication

The main aim of the DISCO WP is to promote and realize efficient and targeted dissemination, exploitation of results and communication activities resulting from the dedicated research and transnational activities performed within the project, in order to raise the awareness about their importance, to promptly inform the various communities on the obtained results and to enhance the future financing opportunities targeting the self-sustainability of the involved community, with special care on sex and gender dimension. DISCO is a transversal and integrated activity, which involves all the other WPs of the project. The objective is to promote and realize dissemination and communication of the results coming from the project, with special focus on the involved research infrastructures, toward: - The scientific community of specialists in hadron physics: aiming to present the main results coming from the project activities, the research infrastructures dedicated to the strong interaction studies and the working opportunities both within the researchers community involved in the project, inter-WPs, contributing to cross-fertilization and birth of new ideas, as well as to those researchers who are not directly involved in the project in order to look for new collaborations and scientific opportunities. - The wider scientific community: aiming to present the main results coming from the project activities and the research infrastructures to those researchers who are not directly involved in research in strong interaction physics. - The general public, industry representatives and policy makers: aiming to present the main results coming from the project activities and the research infrastructures to the general public, policy makers, industry representatives, students, children, to raise the awareness about this type of research and related infrastructures, to promote a new generation of scientists and enhance future financing opportunities

SCIENTIFIC FRONTIERS

LOW ENERGY FRONTIER

JRA3-PrecisionSM

Precise determination of the muon anomalous magnetic moment (g-2)μ; the CKM matrix element Vud from beta decay, and the weak mixing angle from parity-violating electron scattering. Associated novel constraints (or discovery) of physics beyond the SM.

JRA3-PrecisionSM

NA4-PREN

Address the “proton-radius puzzle” via combined data-theory analyses of new results in atomic spectroscopy (laser spectroscopy of Hydrogen molecules and molecular ions, muonic atoms, He+ ions, positronium, and muonium) and very-low momentum transfer (Q2) lepton-proton elastic scattering at various energies.

NA6-LatticeHadrons

Development of combined software, data sharing, and methodologies in lattice QCD theory across Europe along 4 axes: (i) hadron spectroscopy and structure, (ii) hadrons under extreme conditions, (iii) hadrons in the SM and beyond, (iv) novel numerical algorithms and computing for lattice hadron physics.

NA6-LatticeHadrons

JRA7-HaSP

Development of a common data-theory analysis framework to determine exotic hadrons properties (new mesons and baryons, onia, dibaryon, multi-quark, glueballs, hybrids...) by fitting new experimental data (MAMI, TJNAF, BESIII, COMPASS, LHCb and ALICE at CERN) to lattice QCD and effective-field-theory predictions.

NA1-FAIRnet

Multi-prong improved data selection (trigger-detector-less data acquisition, deadtime-free frontend electronics, Field Programmable Array (FPGA) based online selection) plus distributed physics analysis (partial wave analysis of resonances, and multi-particle correlations) for rare signal events under high background conditions (multi-PByte/month) in anti-p-p, anti-p-A, and A-A collisions for the PANDA and CBM experiments at the future FAIR facility.

NA1-FAIRnet

NA5-THEIA

Address the “neutron stars hyperon puzzle” (contradiction between the observation of 2-solarmasses neutron stars and microscopical predictions of a softening of the nuclear equation-of-state due to the presence of strange-quark hadrons) through combined theoretical and experimental studies of (anti)hypernuclei and bound strange-meson systems produced in hadronic collisions at various c.m. energies.

HIGH ENERGY FRONTIER

JRA5-GPD-ACT

Extraction of GPDs from new high-precision QCD analyses of novel high-statistics e-p and p-p measurements at fixed-target and collider energies.

JRA5-GPD-ACT

JRA4-TMD-neXt

Extraction of unpolarized and polarized TMDs and parton fragmentation functions (FFs) from new high-precision QCD analyses of novel high-statistics measurements at e+e-, e-p and p-p at fixed-target and collider energies.

JRA6-next-DIS

Development of new Monte Carlo tools and studies of benchmark channels, for e-A collisions at future deep-inelastic experiments (Electron-Ion Collider, EIC). Optimisation of associated detector designs for high-resolution tracking, vertexing, photon, and PID.

JRA6-next-DIS

NA2-Small-x

Extraction of high-precision nuclear parton distribution functions (nPDF) through global fits including the latest LHC p-A and A-A data. Extension of current gluon-saturation calculations (CGC, BFKL, TMD...) to NLO accuracy with resummation corrections, for observables with three jets and with heavy-quarks.
Calculation of multi-particle correlations issuing from initial-state PDF effects to separate them from final-state hydrodynamic effects in small systems (p-p, p-A collisions).

JRA2-FTE@LHC

Development of novel gas-target techniques to be able to carry out the most energetic fixed-target collisions ever performed in the lab, using the LHC beams at ALICE and LHCb. Evaluation of the novel expected constraints on PDFs at high-x in the proton and nucleus, parton spin dynamics, as well as QGP properties via unique quarkonia measurements.

JRA2-FTE@LHC

NA3-Jet-QGP

Development of novel experimental and theoretical techniques for jet physics in A-A collisions, providing a reference implementation of jet interactions in a QGP via a full heavy-ion Monte Carlo (MC) event generator. Definition of new observables and development of new tools (based on quark/gluon jet substructure variables via machine-learning techniques) with increased sensitivity to the physical mechanisms involved in jet-QGP interactions.

NA7-Hf-QGP

Extraction of QGP transport coefficients from new high-precision theoretical calculations and experimental measurements of the production of open and closed heavy flavour (HF) quarks (charm and beauty) in A-A collisions at the LHC. Accurate measurements of total c-cbar, b-bbar cross sections in p-p, p-A and A-A collisions. Development of a new data-theory interface (with a Rivet-like standard format) to compare event-byevent experimental results to MC predictions.

NA7-Hf-QGP

JRA1-LHC-Combine

Combination of key LHC (ALICE, ATLAS, CMS, LHCb) measurements in p-p, p-A, and/or A-A collisions to achieve high-precision constraints on nuclear PDFs, QGP properties, SM parameters, and/or searches of physics beyond the SM. Examples include gauge bosons and jets differential cross sections to constrain nPDF, light-by-light scattering to constrain new physics (axion) searches, open charm or bottom hadron cross sections to determine QGP transport coefficients.

INSTRUMENTATION

JRA14-MPGD_HP

Development (up to the prototype stage) of new gas detectors with improved capabilities in tracking, charged particle identification, photon detection, and timing in the picosecond region, capable of operating under very high beam intensity conditions.

JRA14-MPGD_HP

JRA9-TIIMM

Development of new silicon detectors based on Monolithic Active Pixel Sensors (MAPS) for high-precision tracking, and energy loss measurement for advanced particle identification.

JRA8-ASTRA

Development of beyond state-of-art radiation detectors based on semiconductors (Cadmium Telluride, Cadmium Zinc Telluride) able to perform high-precision measurements of X-ray and gamma-ray photons in different environments/conditions.

JRA8-ASTRA

JRA10-CryPTA

Production of polarized nucleon targets (at the prototype level) using solid state materials combined with superconducting high-field magnets and the Dynamic Nuclear Polarization method.

JRA11-CRYOJET

Development of cryogenically-cooled cluster/pellet/microjet sources to be used as targets in a variety of collision setups (storage ring experiments, electron accelerators, or laser-driven hadron accelerators).

JRA11-CRYOJET

JRA12-SpinForFAIR

Optimization of the polarization of protons and antiprotons beams and targets for the GSI/FAIR storage ring.

JRA13-P3E

Optimization of high-intensity polarized electron and positron beam sources, and full design of the Hydro-Møller polarimeter detector using high-voltage monolithic active pixel sensors (HV-MAPS).

JRA13-P3E

RESEARCH INFASTRUCTURES

Transnational Access

TA1-COSY

The cooler synchrotron and storage ring COSY has a race track design with a circumference of 184 m.
It delivers polarized and unpolarized proton and deuteron beams in the momentum range
from 300 MeV/c up to 3.7 GeV/c.

TA1-COSY

TA2-MAMI

The Mainz Microtron MAMI research infrastructure is a continuous wave electron accelerator, operated by the Institute for Nuclear Physics of the University of Mainz (Germany). It consists of the actual accelerator and major experimental equipment described below. The accelerator consists of two sources for unpolarised and polarised electrons, followed by an injection linac, three consecutive race-track-microtrons and a harmonic double-sided microtron (HDSM) providing a maximum beam energy of 1604 MeV.

TA3-LNF

The Frascati National Laboratories (LNF), founded in 1955, are the oldest and biggest laboratory of INFN, the Italian agency devoted to fundamental research in nuclear and subnuclear physics and astrophysics. Presently LNF hosts DAΦNE, a high luminosity e+e- collider at 1 GeV c.m. energy (-factory). DAΦNE is a double ring collider of electrons and positrons with 510 MeV energy per beam.

TA3-LNF

TA4-FTD/ELSA

The FTD-ELSA represents a unique combination of infrastructures for hadron physics research and detector development, and includes:

  • the FTD research building with high-grade laboratory space and dedicated instrumentation,
  • the 3.2 GeV electron accelerator ELSA, hosting two hadron physics experiments and a detector test beamline,
  • the Bonn Isochronous Cyclotron, offering 14 MeV/nucleon ion beams mainly for material irradiation.

TA5-GSI

GSI operates an accelerator complex, which consists of the linear accelerator UNILAC, the heavy-ion synchrotron SIS18, and the experimental storage-cooler ring ESR. Ions ranging from hydrogen to uranium can be accelerated up to momenta given by the maximum rigidity, 18 Tm, of the SIS.

TA5-GSI

TA6-ECT*

The European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) in Trento (Italy) offers a unique combination of projects in high-level scientific exchange, dedicated research and advanced training to the international community working in the broad area of Hadronic and Nuclear Physics.

TA7-CERN

CERN is a European research organization that operates the largest particle physics laboratory in the world. Established in 1954, the organization is located by the Swiss-French border near Geneva and is funded by 22 member states. The lab has 2,500 scientific, technical, and administrative staff members, and hosts about 12,000 world-wide users per year.

TA7-CERN

Virtual Access

VA1-NLOAccess

NLOAccess gives access to automated tools generating scientific codes allowing anyone to evaluate observables-such as production rates or kinematical properties - of scatterings involving hadrons.

VA1-NLOAccess

VA2-3DPartons

3DPartons gives access to open-source code necessary for high precision phenomenology in the field of 3D hadron structure, with a specific emphasis on generalized parton distributions (GPDs) and transverse momentum dependent parton distributions (TMDs).

44
INSTITUTIONS
36
COUNTRIES
32
WORK PACKAGES

PARTICIPANTS

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824093

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