Project description
Unveiling the 3D structure of protons
Protons in atomic nuclei are made up of smaller particles, the quarks, which are held together by the strong force mediators, the gluons. With the support of the Marie Skłodowska-Curie Actions programme, the STAT-TMDs project aims to describe the 3D structure of protons and how quarks and gluons behave inside them. The project will apply modern statistical methods to create more precise models of quark and gluon distributions, while carefully assessing the corresponding uncertainties. By doing so, it will provide better insights into the strong interaction, which governs the physics of the building blocks of the visible matter.
Objective
The description of the proton properties and its internal structure is still a challenging issue within Quantum Chromodynamics (QCD), the theory of strong interaction. The standard one-dimensional picture, encoded in collinear parton distribution functions (PDFs), is not able to explain the proton spin budget in terms of quark and gluon spin. A new class of parton distributions, including intrinsic transverse momentum effects, has then been introduced: the Transverse Momentum Dependent PDFs (TMDs). By encoding the correlation between the proton/parton spin and the parton intrinsic transverse momentum, they can provide a much richer and detailed picture: a 3D image of the proton. TMDs are now of great interest in hadron and spin physics, being able to describe several experimental observables at moderate and high energy. At the same time, they represent a perfect ground for testing fundamental properties of QCD, such as universality and factorisation.
STAT-TMDs aims at building an improved statistical framework for studies of TMDs, applying for the first time modern statistical techniques to TMD analyses. Through a bottom-up approach, I will provide new and more robust phenomenological extractions of (un)polarised quark and gluon TMDs, carefully assessing the uncertainties in the data and extrapolation regions. This will eventually allow, thanks to global Bayesian reweighting techniques, for a quantitative estimate of factorisation breaking effects in inclusive polarised hadronic reactions.
The project represents a timely effort, as it has the ambition to determine a new standard for the hadron physics community, and to set the ground for the future precision era of TMD studies, when data from the future US Electron-Ion Collider and fixed-target programs at the LHC will come.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences theoretical physics particle physics particle accelerator
- natural sciences physical sciences theoretical physics particle physics gluons
- natural sciences physical sciences theoretical physics particle physics quarks
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2023-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
09124 Cagliari
Italy
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.