4 papers
Two-loop quarkonium Hamiltonian in annihilation channel
Yukinari Sumino, Takahiro Ueda
We calculate the two-loop quarkonium Hamiltonian in the annihilation channel within the framework of potential-NRQCD effective field theory. The result agrees with the previous cal…
Method to measure quarkonium wave function using decay
Yukinari Sumino
We propose a method that enables a direct experimental probe of the quarkonium wave function defined in potential nonrelativistic QCD (pNRQCD) using the three-body decay of the $B_…
Two-loop Quarkonium Hamiltonian in Non-annihilation Channel
Go Mishima, Yukinari Sumino, Hiromasa Takaura
We calculate the two-loop heavy quarkonium Hamiltonian within potential-NRQCD effective field theory in the non-annihilation channel. This calculation represents the first non-triv…
Two-loop term of heavy quarkonium potential
Yukinari Sumino
As a straightforward application of the recently calculated two-loop heavy quarkonium Hamiltonian, we evaluate the two-loop term of the heavy quarkonium potentia…