11 papers · 1 filter
Perturbative QCD Potential and String Tension
Y. Sumino
The leading non-perturbative contribution to the static QCD potential at r << 1/Lambda_QCD is known to be O(r^2) in operator-product expansion. It indicates that a "Coulomb+linear"…
Top quark and QCD physics at e+e- linear colliders: recent progress
Y. Sumino
I review the studies, which were reported after the last Linear Collider Workshop, on top quark physics and QCD physics at a future e+e- linear collider.
Understanding Heavy Quarkonium Systems in Perturbative QCD
Y. Sumino
We review the recent theoretical progress in heavy quarkonium spectroscopy within the boundstate theory based on perturbative QCD. New microscopic pictures of the heavy quarkonium…
Corrections to quarkonium 1S energy level at O(alpha_S^4 m) from non-instantaneous Coulomb vacuum polarization
Y. Kiyo, Y. Sumino
We calculate O(alpha_S^4 m) and O(alpha_S^4 m log(alpha_S)) corrections to the quarkonium 1S energy level analytically, which have been overlooked in recent studies. These are the…
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
R. -D. Heuer, D. J. Miller, F. Richard +236
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Probe of CP Violation in e+e- -> ttbar Near Threshold
Y. Sumino
We report our theoretical study on how to probe the anomalous CP-violating couplings of the top quark in the ttbar region at future e+e- linear colliders. We focus on the unique ro…