We explore the quantum dynamics of heteronuclear atomic collisions in waveguides and demonstrate the existence of a novel mechanism for the resonant formation of polar molecules. The molecular formation probabilities can be tuned by changing the trap frequencies characterizing the transverse modes of the atomic species. The origin of this effect is the confinement-induced mixing of the relative...

We report the experimental observation of energetically confined self-accelerating optical beams propagating along various convex trajectories. We show that, under an appropriate transverse compression of their spatial spectra, these self-accelerating beams can exhibit a dramatic enhancement of their peak intensity and a significant decrease of their transverse expansion, yet retaining both the...

We show the 't Hooft Equation and light-front holographic Schrödinger are complementary to each other in governing transverse longitudinal dynamics of colour confinement quark-antiquark mesons. Together, they predict remarkably well light, heavy-light heavy-heavy meson spectroscopic data. The universal emerging hadronic scale holography, κ≈0.5 GeV, controls all these In mesons, it also coincide...

We investigate propagating dark soliton solutions of the two-dimensional defocusing nonlinear Schrödinger or Gross-Pitaevskii (NLS-GP) equation that are transversely confined to propagate in an infinitely long channel. Families of single, vortex, and multilobed solitons are computed using a spectrally accurate numerical scheme. The multilobed solitons are unstable to small transverse perturbati...

The transverse momentum of a colour-singlet massive particle in a hadronic collision is built up by two components, the perturbative effect of parton branchings and the nonperturbative effect of primordial k⊥. In previous studies of transverse momentum spectra for Z production at the Tevatron, the best fit to the experimental data are given when the primordial k⊥ is set to a much higher value t...

The effect of perturbative QCD interactions on the high energy scattering of electroweak vector bosons, when the exchanged channel has pion quantum numbers, is considered. It is shown that transverse momentum diagrams appear that have couplings in which the chiral anomaly appears. As a consequence, there is a large transverse momentum divergence that produces an enhancement of the scattering am...

The effect of perturbative QCD interactions on the high energy scattering of electroweak vector bosons, when the exchanged channel has pion quantum numbers, is considered. It is shown that transverse momentum diagrams appear that have couplings in which the chiral anomaly appears. As a consequence, there is a large transverse momentum divergence that produces an enhancement of the scattering am...