X iv : h ep - t h / 97 06 13 9 v 1 1 8 Ju n 19 96 DOMAIN RIBBONS INSIDE DOMAIN WALLS AT FINITE TEMPERATURE

/ 97 06 13 9 v 2 1 7 A ug 1 99 6 DOMAIN RIBBONS INSIDE DOMAIN WALLS AT FINITE TEMPERATURE

In this paper we deal with defects inside defects in systems of two scalar fields in 3 + 1 dimensions. The systems we consider are defined by potentials containing two real scalar fields, and so we are going to investigate domain ribbons inside domain walls. After introducing some general comments on the possibility of finding defects that support internal structure in two specific systems, we ...

ar X iv : h ep - p h / 97 06 31 9 v 1 1 0 Ju n 19 97 MC - TH - 97 / 8 Photoproduction 1 Jeffrey

Some selected topics in photoproduction are reviewed. In particular, the focus is on quasi-real photon–proton scattering as measured at HERA. Single & dijet rates and jet profiles are discussed, as are open charm production and inelastic charmonium production. The many intriguing theoretical issues which can be addressed through study of these processes are highlighted.

ar X iv : h ep - t h / 96 06 18 6 v 1 2 7 Ju n 19 96 An Heterotic SUSY Version of one Non – Stable Integrability

By using Heterotic SUSY path integral, one version and generali zation of an integrability theorem due to Mayer is obtained.

ar X iv : h ep - p h / 97 06 36 3 v 1 1 6 Ju n 19 97 Interference in the reaction e + e − → γπ + π − and the final state interaction

X iv : h ep - p h / 96 06 48 2 v 1 2 9 Ju n 19 96 Preprint INR 924 / 96 June 1996 MIXING OF NEUTRAL B MESONS AND FACTORIZATION

A brief review of checking the factorization hypothesis for matrix element of B 0 − ¯ B 0 mixing within operator product expansion and QCD sum rules is given. Both perturbative and power corrections are considered.