Workshop on the Giant Monopole Resonance (GMR)

25 nov. 2020, 14:00 → 26 nov. 2020, 12:15 Europe/Paris

100/-1-A900 - Auditorium Joliot Curie (IJCLab)

In the framework of Working Group 1 (GT1) of the French initiative for Nuclear Physics GDR RESANET (resanet.in2p3.fr) we are organizing a workshop on the measurements of the GMR and their interpretation and importance. We will review the ongoing theoretical and experimental activity on the subject and discuss about future studies.

The workshop will consist in short talks and extended discussion periods. Some of the questions to be addressed are:

• What does one learn about Nuclear Physics from the recent GMR measurements?
• What are the experimental uncertainties on the position of the GMR?
• How do these uncertainties project on the parameters of the equation of state?
• Do soft monopole modes exist and what do they teach us?
• What are the most pertinent nuclei and experimental techniques for future measurements?

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The organizers: Yorick Blumenfeld (IJCLab), Elias Khan (IJCLab), Marine Vandebrouck (CEA Irfu/DPhN)

mercredi 25 novembre

14:00 → 14:20 A brief history of the GMR

Orateur: Yorick BLUMENFELD (ijclab)

yorick_gmr.pdf

14:20 → 14:50 GMR studies with stable nuclei: What's New ?

Orateur: Umesh Garg (University of Notre Dame)

Garg_gmr.pdf

14:50 → 15:10 Discussion: What precision can one reach for the measurement of the centroid ?

15:10 → 15:30 Nuclear incompressibility from the viewpoint of spherical and deformed RPA calculations

Orateur: Gianluca Colo (INFN & U.Milano)

colo_gmr.pdf

15:30 → 15:50 ISGMR as a constraint for the Gogny effective potential

Orateur: Lysandra Batail (CEA DAM)

BATAIL_GDR_Resanet.pdf

15:50 → 16:10 Parameters of EoS extracted from GMR measurement

Orateur: Elias KHAN (IJCLab)

khan_gmr.pdf

16:10 → 16:30 Discussion: What precision can one expect for K_inf ?

16:30 → 16:50 Coffee break

16:50 → 17:10 How thermal emission from neutron stars can constrain the unknown parameter K_sym ?

Orateur: Jérôme Margueron (IP2i, Lyon)

margueron-gmr.pdf

17:10 → 17:30 Nuclear incompressibility and the crust of neutron stars

Orateur: Francesca Gulminelli (LPC Caen)

gulminelli_gmr.pdf

17:30 → 17:50 Role (or not) of nuclear incompressibility in astrophysical processes

Orateur: Anthea Fantina (Ganil)

Fantina_gmr.pdf

17:50 → 18:10 Discussion: How to constrain K_sym ?

jeudi 26 novembre

09:30 → 09:50 GMR measurements in unstable nuclei using MAYA and ACTAR

Orateur: Marine Vandebrouck (CEA DRF/Irfu)

Vandebrouck_gmr.pdf

09:50 → 10:10 Impact of beyond mean-field effects on the GMR and the low energy part of the monopole response

Orateur: Marcella Grasso (IJCLab)

grasso_gmr.pptx

10:10 → 10:30 Soft monopole modes and ideas around bubbles

Orateur: Olivier Sorlin (GANIL)

sorlin_gmr.pdf

10:30 → 10:50 Discussion: Soft GMR - existence and importance ?

10:50 → 11:10 Coffee break

11:10 → 11:30 The use of storage rings for measurements at small momentum transfers

Orateur: Nasser Kalantar (KVI Groningen)

kalantar-gmr.pdf

11:30 → 12:15 Discussion: Which future measurements ?