Heavy quarkonium system provides an ideal laboratory to investigate QCD deeply.
We report on our calculation of the two-loop quarkonium Hamiltonian (in the non-annihilation channel). This is the first non-trivial calculation of the $\rm N^4LO$ corrections to the quarkonium Hamiltonian, defined in the potential-NRQCD effective field theory.
We explain the procedure of this computation as well as theoretically interesting points, and then we present the result.
2-loop Quarkonium Hamiltonian (Non-annihilation Channel)
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Published on:
September 17, 2024
Abstract
DOI: https://doi.org/10.22323/1.467.0020
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.