Gautier Hamel de Monchenault

French particle physicist Gautier Hamel de Monchenault (born 1964 in Paris, France) is a French particle physicist who has contributed to the Standard Model, CP violation and the discovery of the Higgs boson. He is a senior researcher at the French Alternative Energies and Atomic Energy Commission (CEA). Hamel de Monchenault is appointed CERN Director for Research and Computing for the period 2026–2030. Early life and education Gautier Hamel de Monchenault graduated from ESPCI ParisTech. He completed his doctoral research at the University of Paris VI and CERN, focusing on high-energy particle physics. Career DELPHI experiment Hamel de Monchenault began his research career at CERN as part of the DELPHI experiment at the Large Electron-Positron Collider (LEP). He was involved in studies related to the Higgs boson and contributed to various physics analyses, including jet fragmentation functions and two-photon physics.[citation needed] BABAR and CP violation In 1992, he joined the BABAR collaboration at SLAC National Accelerator Laboratory, associated with the PEP-II electron-positron collider. There, he played a pivotal role in the design and construction of the DIRC particle iden