ar X iv : h ep - t h / 96 05 03 8 v 1 7 M ay 1 99 6 DAMTP 96 - 45 φ 4 Kinks - Gradient Flow and Dynamics

ar X iv : h ep - t h / 96 05 03 8 v 2 2 4 Se p 19 96 DAMTP 96 - 45 φ 4 Kinks - Gradient Flow and Dynamics

The symmetric dynamics of two kinks and one antikink in classical (1+1)dimensional φ theory is investigated. Gradient flow is used to construct a collective coordinate model of the system. The relationship between the discrete vibrational mode of a single kink, and the process of kink-antikink pair production is explored. PACS number : 11.10.Lm e-mail address: [email protected] e-mail ...

ar X iv : h ep - p h / 96 05 28 2 v 1 1 1 M ay 1 99 6 TWO TOPICS IN PARTICLE - ANTIPARTICLE MIXING

ar X iv : h ep - p h / 96 05 34 7 v 1 1 7 M ay 1 99 6 Neutrinos and Electromagnetic Gauge Invariance

It is discussed a recently proposed connection among U(1) em electromagnetic gauge invariance and the nature of the neutrino mass terms in the framework

ar X iv : h ep - t h / 96 11 05 7 v 1 8 N ov 1 99 6 Numerical domain wall type solutions in φ 4 theory

The well known domain wall type solutions are nowadays of great physical interest in classical field theory. These solutions can mostly be found only approximatelly. Recently the Hilbert-Chapman-Enskog method was succesfully applied to obtain this type solutions in φ theory. The goal of the present paper is to verify these perturbative results by numerical computations.

ar X iv : h ep - p h / 97 05 45 5 v 1 2 8 M ay 1 99 7 LECTURE 1 Spectral Fluctuations of the QCD Dirac Operator