ar X iv : h ep - p h / 95 04 33 6 v 2 3 J ul 1 99 5 Analytic Approach to Small x Structure Functions

ar X iv : h ep - p h / 96 07 25 6 v 1 8 J ul 1 99 6 CCUTH - 96 - 04 Resummation at Large Q and at Small x Hsiang - nan

We propose a unified and simple viewpoint to various evolution equations appropriate in different kinematic regions. We show that the resummation technique reduces to the Altarelli-Parisi equation, if the transverse degrees of freedom of a parton are ignored, to the Balitskii-Fadin-Kuraev-Lipatov equation, if the momentum fraction of a parton vanishes, and to the Gribov-Levin-Ryskin equation, i...

ar X iv : h ep - p h / 96 04 26 9 v 1 9 A pr 1 99 6 About the Q 2 dependence of asymmetry A 1

We analyse the proton and deutron data on spin dependent asymmetry A 1 (x, Q 2) supposing the DIS structure functions g 1 (x, Q 2) and F 3 (x, Q 2) have the similar Q 2-dependence. As a result, we have obtained Γ p

ar X iv : h ep - p h / 99 04 36 2 v 1 1 6 A pr 1 99 9 Preprint SSU - HEP - 99 / 04

The proton structure and proton polarizability corrections to the Lamb shift of electronic hydrogen and muonic hydrogen were evaluated on the basis of modern experimental data on deep inelastic structure functions. Numerical value of proton polarizability contribution to (2P-2S) Lamb shift is equal to 4.4 GHz.

ar X iv : h ep - p h / 04 07 07 9 v 1 7 J ul 2 00 4 Multi - leg calculations with the GRACE / 1 - LOOP system

X iv : h ep - p h / 96 01 25 5 v 3 9 J ul 1 99 6 Symmetry aspects of the pion leptoproduction and the upper limit of the Levelt - Mulders asymmetry ∗

X iv :h ep -p h/ 96 01 25 5v 3 9 J ul 1 99 6 Symmetry aspects of the pion leptoproduction and the upper limit of the Levelt-Mulders asymmetry∗ Wei Lu, Jian-Jun Yang 1 CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China and Institute of High Energy Physics, P.O. Box 918(4), Beijing 100039, P.R. China†, (e-mail: [email protected]) 2 Department of Physics, Nanjing Normal Univers...