Project description
New models to improve understanding of high-energy particle collisions
In high-energy particle collisions, like those detected in particle accelerators, scientists study how particles interact and lose energy in extreme environments. For example, jets of particles passing through the quark-gluon plasma (QGP) – a hot, dense medium created in these collisions – lose more energy than current theories can explain. Furthermore, tightly packed particles called gluons behave in ways that cannot be fully understood, while electromagnetic effects in nuclear collisions reveal fascinating details about atomic nuclei. With the support of the Marie Skłodowska-Curie Actions programme, the HIC-HP project plans to develop better models to explain jet energy loss in the QGP. Researchers will study gluon behaviour in dense environments and analyse electromagnetic effects in nuclear collisions.
Objective
Perturbative QCD (pQCD) derived from first principles, is used to predict experimental observations involving large momentum transfer, such as high-energy jet productions in proton-proton collisions, and the strong interaction between the jet and the Quark-Gluon Plasma (QGP) medium created in nucleus-nucleus collisions. Recent experimental observations have shown that stronger energy-loss mechanism is at play for jets with large transverse momentum, which current perturbative approaches failed to describe. Utilizing an incoherent approach, I will derive an improved energy-loss mechanism that can provide accurate description of the nuclear modification at large jet momentum, which can restore the predictive power of pQCD and allow us to extract the transport property of the hot nuclear medium. The theory of pQCD also anticipates a saturation phenomenon, whereby the density of gluons tends to arrive at equilibrium between the splitting and recombination of gluon quantum fluctuations as the momentum fraction becomes smaller. Recent theoretical development have mitigated the negativity and instability problem that appears in next-to-leading order calculations of forward jet productions under the Color Glass Condensate framework that takes into account the gluon saturation phenomenon. I will also develop a numerical program which incorporates this new approach to implement saturation effects in order to provide a reliable tool in search of saturation signal in current proton-nucleus collisions. The electromagnetic (EM) properties of the nucleus is also of great interest in ultra-peripheral collision (UPC) physics, where the EM form-factor of the nucleus under the GTMD prescription provides a 5-dimensional Wigner distribution of the nucleus. I will also construct a framework using GTMD approach and recent UPC experimental data to analyse the different quantum effects that appears as the EM background in a nucleus-nucleus collision.
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.
- engineering and technology materials engineering colors
- natural sciences physical sciences theoretical physics particle physics gluons
- engineering and technology materials engineering amorphous solids
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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)
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Topic(s)
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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
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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
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2024-PF-01
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15782 Santiago De Compostela
Spain
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