ar X iv : h ep - p h / 99 04 28 0 v 2 6 J ul 1 99 9 SLAC - PUB - 8095 April 1999

ar X iv : h ep - p h / 99 04 28 0 v 1 8 A pr 1 99 9 SLAC - PUB - 8095 April 1999 Odderon - Pomeron Interference ∗

We show that the asymmetry in the fractional energy of charm versus an-ticharm jets produced in high energy diffractive photoproduction is sensitive to the interference of the Odderon (C = −) and Pomeron (C = +) exchange amplitudes in QCD. We predict the dynamical shape of the asymmetry in a simple model and estimate its magnitude to be of the order 15% using constraints from proton-proton vs. ...

ar X iv : h ep - p h / 99 10 25 5 v 1 6 O ct 1 99 9 SLAC - PUB - 8238 October 1999 Indirect Collider Tests for Large Extra

We review the capability of colliders to detect the virtual exchange of Kaluza-Klein towers of gravitons within the low scale quantum gravity scenario of Arkani-Hamed, Dimopoulos and Dvali.

ar X iv : h ep - p h / 97 10 22 9 v 1 2 O ct 1 99 7 SLAC - PUB - 7663 October 1997 Z ′ INVESTIGATIONS AT FUTURE LEPTON

ep - p h / 96 04 39 1 v 1 2 3 A pr 1 99 6 SLAC – PUB – 7152 April 1996 LIGHT - CONE QUANTIZATION AND HADRON STRUCTURE

ar X iv : h ep - p h / 99 05 28 2 v 2 9 J ul 1 99 9 Comparing the Broken U 3 × U 3 Linear Sigma Model with Experiment

The linear σ model with broken U3×U3 is compared with data on the lightest scalar and pseudoscalar mesons. When 5 of the 6 parameters are fixed by the pseudoscalar masses and decay constants one finds that, already at the tree level, a reasonable description for the 4 scalar masses, mixing and up to 8 trilinear couplings of lightest scalars, taken as a0(980), f0(980), σ(≈ 500) and K 0 (1430). T...