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Observation of harmonic generation and nonlinear coupling in the collective dynamics of a Bose condensate

(2000)

Authors:

G Hechenblaikner, OM Marago', E Hodby, J Arlt, S Hopkins, CJ Foot

Limits on Gravitino Production and New Processes with Large Missing Transverse Energy in p-pbar Collisions at sqrt(s)=1.8 TeV

ArXiv hep-ex/0003026 (2000)

Authors:

CDF Collaboration, T Affolder

Observation of the scissors mode and evidence for superfluidity of a trapped bose-einstein condensed Gas.

Phys Rev Lett 84:10 (2000) 2056-2059

Authors:

OM Marago, SA Hopkins, J Arlt, E Hodby, G Hechenblaikner, CJ Foot

Abstract:

We report the observation of the scissors mode of a Bose-Einstein condensed gas of 87Rb atoms in a magnetic trap, which gives direct evidence of superfluidity in this system. The scissors mode of oscillation is excited by a sudden rotation of the anisotropic trapping potential. For a gas above T(c) (normal fluid) we detect the occurrence of oscillations at two frequencies, with the lower frequency corresponding to the rigid body value of the moment of inertia. Well below T(c) the condensate oscillates at a single frequency, without damping, as expected for a superfluid.

Search for New Particles Decaying to top-antitop in proton-antiproton collisions at squareroot(s)=1.8 TeV

ArXiv hep-ex/0003005 (2000)

Limit on the tau neutrino mass from 蟿-鈫捪赌-蟺+蟺-蟺 0v蟿

Physical Review D Particles Fields Gravitation and Cosmology 61:5 (2000) 1-7

Authors:

M Athanas, P Avery, CD Jones, M Lohner, C Prescott, AI Rubiera, J Yelton, J Zheng, G Brandenburg, RA Briere, A Ershov, YS Gao, DYJ Kim, R Wilson, TE Browder, Y Li, JL Rodriguez, H Yamamoto, T Bergfeld, BI Eisenstein, J Ernst, GE Gladding, GD Gollin, RM Hans, E Johnson, I Karliner, MA Marsh, M Palmer, C Plager, C Sedlack, M Selen, JJ Thaler, J Williams, KW Edwards, R Janicek, PM Patel, AJ Sadoff, R Ammar, P Baringer, A Bean, D Besson, D Coppage, R Davis, S Kotov, I Kravchenko, N Kwak, X Zhao, L Zhou, S Anderson, VV Frolov, Y Kubota, SJ Lee, R Mahapatra, JJ O'Neill, R Poling, T Riehle, A Smith, MS Alam, SB Athar, AH Mahmood, S Timm, F Wappler, A Anastassov, JE Duboscq, KK Gan, C Gwon, T Hart, K Honscheid, H Kagan, R Kass, J Lorenc, H Schwarthoff, E Von Toerne, MM Zoeller, SJ Richichi, H Severini, P Skubic, A Undrus, M Bishai, S Chen, J Fast, JW Hinson, J Lee, N Menon, DH Miller, EI Shibata, IPJ Shipsey, S Glenn, Y Kwon, AL Lyon, EH Thorndike, CP Jessop, K Lingel, H Marsiske, ML Perl, V Savinov, D Ugolini, X Zhou, TE Coan, V Fadeyev

Abstract:

From a data sample of 29058 蟿卤鈫捪赌卤蟺+蟺 -蟺0v蟿decays observed in the CLEO detector we derive a 95% confidence upper limit on the tau neutrino mass of 28 MeV. 漏2000 The American Physical Society.