Time reversal invariance test in nuclear beta decay: Analysis of the data of MORA at JYFL

Thesis topic details

General information

Organisation

The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.

Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.

The CEA is established in ten centers spread throughout France
  

Reference

SL-DRF-25-0228  

Direction

DRF

Thesis topic details

Category

Corpuscular physics and outer space

Thesis topics

Time reversal invariance test in nuclear beta decay: Analysis of the data of MORA at JYFL

Contract

Thèse

Job description

The Matter’s Origin from RadioActivity (MORA) experiment searches for a sign of CP violation in nuclear beta decay, via the precise measurement of the so-called D correlation. An innovative technique of in-trap ion polarization for such a measurement enables attaining unprecedented sensitivity to New Physics, which could explain the matter-antimatter asymmetry observed in the universe. With a goal in sensitivity on a non-zero D of a few 10-4, the measurement that MORA is undertaking at Jyväskylä will be competitive with the best limit obtained so far on a non-zero D correlation in neutron decay [5]. To attain such precision regime several weeks of data taking are required along the coming years (2025-2027) at Jyväskylä, both for 23Mg+ and 39Ca+. The data analysis has to be undertaken in parallel. Crosschecks and adaptation of existing simulations of individual detectors of MORA, performed with GEANT4 and PENELOPE Monte Carlo codes, are required to pursue the investigation of systematics effects potentially affecting the final sensitivity on D. Dissemination of the results of the data analysis at national and international conferences will be asked to the PhD student.

University / doctoral school

Physique, Sciences de l’Ingénieur, Matériaux, Énergie (PSIME)
Caen

Thesis topic location

Site

Saclay

Requester

Position start date

01/10/2025

Person to be contacted by the applicant

DELAHAYE Pierre delahaye@ganil.fr
CNRS
GANIL/Grand Accélérateur National d’Ions Lourds
Bld Henri Becquerel
BP 55027
14076 Caecedex 5
02 31 45 4539

Tutor / Responsible thesis director

DELAHAYE Pierre delahaye@ganil.fr
CNRS
GANIL/Grand Accélérateur National d’Ions Lourds
Bld Henri Becquerel
BP 55027
14076 Caecedex 5
02 31 45 4539

En savoir plus


https://www.ganil-spiral2.eu/wp-content/uploads/2024/10/AniMOJy-thesis2025.pdf