9 papers · 1 filter
Comment on "Subleading Corrections to Parity Violating Pion Photoproduction"
Jiunn-Wei Chen, Xiangdong Ji
In a recent preprint, hep-ph/0012253, Zhu et al. calculated a part of the next-to-leading order corrections to parity-violating pion photoproduction (pol)gamma p-> pi^+ n in heavy-…
Key Issues in Hadronic Physics
Simon Capstick, Steven Dytman, Roy Holt +3
A group of fifty physicists met in Duck, NC, Nov. 6-9 to discuss the current status and future goals of hadronic physics. The main purpose of the meeting was to define the field by…
A Modern Anatomy of Electron Mass
Xiangdong Ji, Wei Lu
Motivated by the need to understand hadron masses, we reexamine an old problem in QED - the composition of the electron mass - in a modern perspective. We find that in the unrenorm…
Purely-Nonperturbative Composite Operators and Parton Distributions
Xiangdong Ji
A class of purely-nonperturbative (PNP) composite operators is defined in Quantum Chromodynamics, which is perturbative scheme and scale independent and are useful to describe the…
Hunting for the Remaining Spin in the Nucleon
Xiangdong Ji
This talk consists of four parts. In part one, I give an elementary discussion on constructing a Lorentz-invariant spin sum rule for the nucleon. In part two, I discuss a gauge-dep…
Spin Structure Functions of the Nucleon
Xiangdong Ji
I begin with a general discussion about importance of constructing a picture of the nucleon in terms of QCD degrees of freedom, emphasizing the role of spin structure functions. I…