We consider an asymmetric string compactification scenario in which the SM gauge bosons can propagate into one TeVâˆ’1-size extra compact dimension. These gauge bosons have associated KK excitationsâ€¦ (More)

The cross sections for the processes ! , ! and ! are calculated for a range of center of mass energies from below m e to considerably above m e , but much less than m W. This enables us to treat theâ€¦ (More)

Compactified five dimensional Yang-Mills theory results in an effective four-dimensional theory with a Kaluza-Klein (KK) tower of massive vector bosons. We explicitly demonstrate that the scatteringâ€¦ (More)

Higgs bosons which decay principally to top quarks, such as in the minimal super-symmetric model, produce a peak-dip structure in the gg â†’ t Â¯ t invariant-mass spectrum. This structure is potentiallyâ€¦ (More)

We argue that the leading-order subprocess for Higgs-boson production in association with bottom quarks is bbÌ„ â†’ H. This process is an important source of Higgs bosons with enhanced Yukawa couplingâ€¦ (More)

Existing oscillation data point to nonzero neutrino masses with large mixings. We analyze the generic features of the neutrino Majorana mass matrix with inverted hierarchy and construct realisticâ€¦ (More)

The residual Z(2)(s)(k) and Z(2)(s)(k) symmetries induce a direct and unique phenomenological relation with Î¸x (â‰¡ Î¸13) expressed in terms of the other two mixing angles Î¸s(â‰¡ Î¸12) and Î¸a(â‰¡ Î¸23) andâ€¦ (More)

In theories with gauge mediated supersymmetry breaking, the scalar tau, (Ëœ Ï„ 1) is the lightest observable superpartner for part of the parameter space. At LEP 2, the production of such a Ëœ Ï„ 1 pairâ€¦ (More)

Details of a! estimate of the corrections of order l/N to the axial vector coupling of the constituent quark, where IV is the number of colors, are presented. Analogous estimate is made for theâ€¦ (More)

Evidence for neutrino oscillations points to the existence of tiny but finite neutrino masses. Such masses may be naturally generated via radiative corrections in models, such as the Zee model, whereâ€¦ (More)