2012

• Pr. Glen Cowan (University of London, United-Kingdom) in the group of L. Fayard (LAL)

• Pr. Parco S. Bianchi (Instituto Nazionale di Fisica Nucleare, Italy) in the group of B. Pire (CPHT)

• Pr. Alfred H. Mueller (University of Columbia, United-States) in the group of S. Munier (CPHT)