Large Internal Dimensions and New Physics at the TeV Scale
World Scientific Publishing (2001) 469-483
First observation of the decays B0 → D*- p̄π+ and B0 → D*-pn̄
Physical Review Letters 86:13 (2001) 2732-2736
Abstract:
Decay modes of the B0 of the type B → DNN̄X were observed. Measurements imply that DNN̄X final states may contribute substantially to the total observed B → barvon rate. Branching fractions were accurately measured.Randall-Sundrum II Cosmology, AdS/CFT, and the Bulk Black Hole
(2001)
Experimental observation of Beliaev coupling in a Bose-Einstein condensate.
Phys Rev Lett 86:11 (2001) 2196-2199
Abstract:
We report the first experimental observation of Beliaev coupling between collective excitations of a Bose-Einstein condensed gas. Beliaev coupling is not predicted by the Gross-Pitaevskii equation and so this experiment tests condensate theory beyond the mean field approximation. Measurements of the amplitude of a high frequency scissors mode show that the Beliaev process transfers energy to a lower-lying mode and then back and forth between these modes, unlike Landau processes which lead to a monotonic decrease in amplitude. To enhance the Beliaev process we adjusted the geometry of the magnetic trapping potential to give a frequency ratio of 2 to 1 between the two scissors modes.First Observation of the Σc*+ Baryon and a New Measurement of the Σc*+ Mass
Physical Review Letters American Physical Society (APS) 86:7 (2001) 1167-1170