Theory HEP Seminar

Effective Field Theories for heavy quarkonium at finite temperature

Jacopo Ghiglieri

Technische Universität München

We develop a Non-Relativistic Effective Field theory approach for heavy quarkonium at finite temperature. Such a framework is based on the T=0 one of NRQCD and pNRQCD. Within this approach we calculate the heavy quarkonium energy levels and decay widths in a quark-gluon plasma whose temperature is much smaller than the inverse radius of the bound state, which is relevant for the ground states of bottomonium. The calculation is performed by subsequently integrating out the scales that characterize the system, creating a series of EFTs. Relevance for the phenomenology of heavy ion collisions is also discussed.