Recent developments in perturbative QCD
(2006)
螖I=1/2 rule in holographic QCD
Physical Review D - Particles, Fields, Gravitation and Cosmology 74:2 (2006)
Abstract:
We study the 螖I=1/2 rule for kaon decays and the BK parameter for K0-K虅0 mixing in a dual 5-dimensional holographic QCD model. We perform, in the chiral limit, computations of the relevant four-point current-current correlators, which depend upon self-interactions among the 5D bulk fields. Spontaneous chiral symmetry breaking (蠂SB) is realized through boundary conditions on the bulk fields. Numerical results are analyzed in comparison with QCD, chiral perturbation theory (蠂PT) and data, finding reasonable agreement with the experimental values of the g8 and g27 parameters describing the 螖I=1/2, 3/2 decay channels. 漏 2006 The American Physical Society.Seeing the Invisible Axion in the Sparticle Spectrum
ArXiv hep-ph/0607138 (2006)
Abstract:
I describe how under favourable circumstances the invisible axion may manifest its existence at the LHC through the sparticle spectrum; in particular through a gluino \sim \ln (M_P/m_{3/2}) times heavier than other gauginos.Seeing the Invisible Axion in the Sparticle Spectrum
(2006)
The spectral dimension of generic trees
(2006)