Deciphering nuclear phenomenology across energy scales

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20-23 September 2022




Deciphering nuclear phenomenology across energy scales

Organizers: G. Giacalone (Univ. Heidelberg, contact), J.-Y. Ollitrault (CEA IPhT), You Zhou (N. Bohr Institute)



The plan is to have 4 days of intense discussions among experts (both theorists and experimentalists) from the high and low-energy nuclear communities to achieve the following goals :

1. Reviewing the variety of deformation effects (static deformation versus shape fluctuations, shape coexistence, shape changes when exciting nuclei...) observed in low-energy experiments, their imprint on observable phenomena in low-energy nuclear structure and reactions, and the types of deformation that are deduced from the data (axial, non-axial, octupolarity, hexadecapolarity...).
2. Reviewing the status of the manifestations of nuclear structure at high-energy colliders, what phenomena are deduced from such data (e.g. deformations, neutron-skin...), and how nuclear structure effects are modeled in theoretical calculations.
3. Pointing out important conceptual issues centred around the question : are high-energy and low-energy experiments observing the manifestation of the same thing ?
4. Identifying information from potential new low-energy experiments that may help explain high-energy data (e.g. recent evidence of deformation in collisions of 96Zr and 96Ru nuclei), and, conversely, assessing whether the great flexibility of high-energy experiments may be used to probe phenomena difficult to access via spectroscopic experiments (e.g. the deformations of any stable odd-mass nucleus, imprint of octupole deformations...).
5. Identifying optimal choices of nuclei that, if collided at high energy, would help make progress in our understanding of nuclear phenomenology across energy scales. 




Day 1 – Tuesday 20/09/2022 – Topic: Nuclear deformation across energy scales


The importance of nuclear deformation in low-energy nuclear phenomenology, Michael Bender (IPNL, Lyon)

Evidence of nuclear deformation in low-energy experiments : methods, limitations, interpretation, David Verney (IJCLab, Orsay)


Evidence of nuclear deformation in high-energy experiments,  Giuliano Giacalone (ITP, Heidelberg)

  Discussion: Are we observing the same things ?

Day 2 – Wed. 21/09/2022 – Relativistic collisions of isobars : the 2021 breakthrough


Overview of nuclear deformation and shape coexistence around 96Zr and 96Ru, Magda Zielinska (IRFU, Saclay)


The isobar collision run at RHIC : a tool for precision studies, Jiangyong Jia (Stony Brook & BNL)


Precision phenomenology of nuclear structure in high-energy isobar collisions, Wilke van der Schee (CERN TH)


Discussion: The unreasonable effectiveness of intrinsic nuclear shapes in high-energy collisions



Day 3 – Thursday 22/09/2022 – Nuclear models across energy scales


Energy density functional method and projection technique, Benjamin Bally (ESNT, IRFU, Saclay)


Effective theories of QCD for nuclei at low energy, Thomas Duguet (IRFU, Saclay)


Effective theories of QCD for nuclei at high energy, François Gelis (IPhT, Saclay)


Discussion: Towards a unified description



Day 4 – Friday 23/09/2022 –  Future perspectives on nuclear studies at high energy


Opportunities for QGP studies from Bayesian analyses with several ions, Matthew Luzum (Universidade de São Paulo)


Overview of nuclear parton distribution functions from LHC to EIC, Petja Paakkinen (University of Jyväskylä)


The nuclear program beyond LHC Run4, Marco van Leeuven (Nikhef, Amsterdam)


Discussion: High-energy experiments with several nuclear species



Preliminary program 













M. Bender M. Zielinska B. Bally M. Luzum
  Break  Break    
10h45-12h20 D. Verney Jiangyong J. T. Duguet P. Paakkinen



14h40-15h20 G. Giacalone W. van der Schee F. Gelis M. van Leeuven












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Création-contact Web ESNT : Valérie Lapoux

#107 - Mise à jour : 13/07/2022
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