2 v 2 1 A ug 1 99 7 CALT - 68 - 2130 hep - ph / 9707522 RECENT PROGRESS IN EFFECTIVE FIELD THEORY

ep - p h / 92 08 24 8 v 1 2 6 A ug 1 99 2 The Baryon Isgur - Wise Function in the Large N c Limit

In the largeNc limit, the Λb and Λc can be treated as bound states of chiral solitons and mesons containing a heavy quark. We show that the soliton and heavy meson are bound in an attractive harmonic oscillator potential. The Isgur-Wise function for Λb → Λc e νe decay is computed in the large Nc limit. Corrections to the form factor which depend on mN/mQ can be summed exactly (mN and mQ are the...

v 1 2 5 A ug 1 99 9 Edinburgh 99 / 8 CERN - TH / 99 - 253 hep - lat / 9908041 August 1999 THE SPECTRUM OF THE THREE - DIMENSIONAL ADJOINT HIGGS

We compute the mass spectrum of the SU(2) adjoint Higgs model in 2 + 1 dimensions at several points located in the (metastable) confinement region of its phase diagram. We find a dense spectrum consisting of an almost unaltered repetition of the glueball spectrum of the pure gauge theory, and additional bound states of adjoint scalars. For the parameters chosen, the model represents the effecti...

/ 96 08 45 3 v 1 2 7 A ug 1 99 6 BI - TP 96 / 41 hep - ph / 9608453 August 1996 Improved Effective Vector - Boson Approximation for Hadron - Hadron Collisions

An improved effective vector-boson approximation is applied to hadron-hadron collisions. I include an approximative treatment and compare with a complete per-turbative calculation for the specific example of ZZ production. The results are also compared with existing approaches. The effective vector-boson approximation in this form is accurate enough to reproduce the complete calculation within ...

0 v 1 1 2 A ug 1 99 7 PRIMORDIAL MAGNETIC FIELDS AND THEIR DEVELOPMENT ( APPLIED FIELD THEORY )

CALT-68-2102 hep-ph/9703213

Exclusive semileptonic B decays into D1 and D ∗ 2 mesons are investigated including order ΛQCD/mc,b corrections using the heavy quark effective theory. At zero recoil, the ΛQCD/mc,b corrections can be written in terms of the leading Isgur-Wise function for these transitions, τ , and known meson mass splittings. We obtain an almost model independent prediction for the shape of the spectrum near ...