4 papers · 1 filter
Recent Developments in Heavy-Quarkonium Phenomenology
Hee Sok Chung, Jungil Lee, Chaehyun Yu
We review recent developments in heavy-quarkonium phenomenology within the nonrelativistic QCD factorization approach. Main issues we consider in this work include the polarization…
Exclusive heavy quarkonium + gamma production from e+ e- annihilation into a virtual photon
Hee Sok Chung, Jungil Lee, Chaehyun Yu
We compute the cross section for exclusive production of a photon associated with a heavy quarkonium H of charge-conjugation parity C=+1 from e+ e- annihilation into a virtual phot…
Resummation of Relativistic Corrections to e+ e- -> J/psi+eta_c
Geoffrey T. Bodwin, Jungil Lee, Chaehyun Yu
We present a new calculation, in the nonrelativistic QCD (NRQCD) factorization formalism, of the relativistic corrections to the double-charmonium cross section sigma[e+ e- -> J/ps…
Improved determination of color-singlet nonrelativistic QCD matrix elements for S-wave charmonium
Geoffrey T. Bodwin, Hee Sok Chung, Daekyoung Kang +2
We present a new computation of S-wave color-singlet nonrelativistic QCD matrix elements for the J/psi and the eta_c. We compute the matrix elements of leading order in the heavy-q…