/ 93 09 24 4 v 1 8 S ep 1 99 3 FSU – HEP – 930830 BNL – 49462 August 1993

ar X iv : h ep - p h / 93 09 28 7 v 4 9 O ct 1 99 3 TIT / HEP - 234 BNL - 49435 YNU - HEPTh

We examine the muonium (µ + e −)-antimuonium (µ − e +) system in the models which accomodate the dilepton gauge bosons, and study their contributions to the ground state hyperfine splitting in " muonium ". We also consider the exotic muon decay µ + → e + +ν e + ν µ mediated by the dilepton gauge boson, and obtain a lower bound (M X ± /g 3l) > 550GeV at 90% confidence level for the singly-charge...

ep - t h / 94 05 09 1 v 1 1 3 M ay 1 99 4 OHSTPY - HEP - TH - 93 - 15 The Light - Cone Field Theory Paradigm for Spontaneous Symmetry Breaking 1

v 1 4 S ep 1 99 3 FSU – HEP – 930903 MAD / PH

We investigate the electroweak process qq → qqW , i.e. W production via Wγ and WZ fusion, as a probe for nonstandard WWγ and WWZ vertices at hadron supercolliders. Triggering on events with one very forward and one very backward jet while requiring the W decay lepton to be central, strongly enhances the triple gauge boson vertex contribution and suppresses backgrounds from QCD Wjj events and tt̄...

ar X iv : h ep - p h / 93 05 29 8 v 1 2 1 M ay 1 99 3 CHIRAL PERTURBATION THEORY

The basic ideas and power counting rules of chiral perturbation theory are discussed. The formalism of velocity dependent fields for baryons, and for hadrons containing a heavy quark, is explained. UCSD/PTH 93-12 hep-ph/9305298 May 1993

/ 93 07 35 5 v 1 2 8 Ju l 1 99 3 FSU – HEP – 930727 July 1993 RAPIDITY CORRELATIONS IN

We study the correlation of photon and charged lepton pseudorapidities, η(γ) and η(ℓ), ℓ = e, µ, in p¯ p → W ± γ + X → ℓ ± p / T γ + X at the Tevatron. In the Standard Model, the ∆η(γ, ℓ) = η(γ) − η(ℓ) differential cross section is found to exhibit a pronounced dip at ∆η(γ, ℓ) ≈ ∓0.4, which originates from the radiation zero present in q ¯ q ′ → W γ. The sensitivity of the ∆η(γ, ℓ) distribution...