ar X iv : h ep - p h / 96 05 22 4 v 1 3 M ay 1 99 6 February 1 , 2008 LBL - 38381 UCB - PTH - 96 / 07 A Grand Unified Supersymmetric

ar X iv : h ep - p h / 94 08 40 6 v 1 1 S ep 1 99 4 February 1 , 2008 LBL - 36022 UCB - PTH - 94 / 22 Signals For

Using the Yukawa couplings of the minimal supersymmetric SU(5) model, the rates for µ → eγ, µ → e conversion and τ → µγ are computed. For a selectron mass of 100 GeV, and without exploring the full parameter space, we find rates which are one order of magnitude beneath present experimental bounds. It is argued that these relatively large rates have a wide applicability, so that lepton flavor vi...

ar X iv : h ep - p h / 96 05 44 0 v 1 3 0 M ay 1 99 6 LTH 372 hep - ph / 9605440 The three - loop SSM β - functions

We present the supersymmetric standard model three-loop β-functions for gauge and Yukawa couplings and consider the effect of three-loop corrections on the standard running

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 - t h / 96 05 03 8 v 1 7 M ay 1 99 6 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. ∗ e-mail address: [email protected] † e-mail address: M.Houari@d...

ar X iv : h ep - p h / 96 05 38 4 v 1 2 3 M ay 1 99 6 On dual descriptions of intermittency in a jet ∗

Models of intermittent behaviour are usually formulated using a set of multiplicative random weights on a Cayley tree. However, inter-mittency in particle multiproduction from QCD jets is related to fragmentation of an additive quantum number, e.g. energy-momentum. We exhibit the non-trivial stochastic mapping between these additive and multiplicative cascading processes.