APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Yukinari Sumino (Tohoku U)
Title: Quarkonium Spectrum and 2-Loop Quarkonium Hamiltonian
Date (JST): Thu, Jun 20, 2024, 14:55 - 16:25
Place: Hongo
Abstract: Heavy quarkonium system provides an ideal laboratory to investigate theoretical and phenomenological aspects of QCD deeply. We have recently computed the 2-loop quarkonium Hamiltonian (in the non-annihilation channel). This is the first non-trivial calculation of the N^4LO corrections to the quarkonium Hamiltonian, defined in the potential-NRQCD effective field theory. In the first part, we review phenomenological motivations to compute the Hamiltonian. In the latter part, we explain the procedure of this computation as well as theoretically interesting points, and then we present the result.
Remarks: Joint event with High Energy Physics Theory Group, Dept. of Physics, UTokyo

Venue: Room 207, Faculty of Science Bldg.1, Dept. of Physics, Hongo Campus
Held in Hybrid.