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Bose-Einstein condensation in a rotating anisotropic TOP trap

Journal of Physics B: Atomic, Molecular and Optical Physics 32:24 (1999) 5861-5869

Authors:

J Arlt, O Maragò, E Hodby, SA Hopkins, G Hechenblaikner, S Webster, CJ Foot

Abstract:

We describe the construction and operation of a time-orbiting potential trap that has different oscillation frequencies along its three principal axes. These axes can be rotated and we have observed Bose-Einstein condensates of 87Rb with a rotating ellipsoidal shape. Under these conditions it has been predicted that quantized vortices form and are stable.
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A Measurement of the Differential Dijet Mass Cross Section in p-pbar Collisions at sqrt{s}=1.8 TeV

ArXiv hep-ex/9912022 (1999)
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Search for Scalar Top Quark Production in p-pbar Collisions at 1.8 TeV

ArXiv hep-ex/9912018 (1999)
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Search for the Charged Higgs Boson in the Decays of Top Quark Pairs in the $eτ$ and $μτ$ Channels at $\sqrt{s}$=1.8 TeV

ArXiv hep-ex/9912013 (1999)
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Measurement of the B0B̄0 oscillation frequency using l-D*+ pairs and lepton flavor tags

Physical Review D - Particles, Fields, Gravitation and Cosmology 60:11 (1999) 1-12

Authors:

T Affolder, H Akimoto, A Akopian, MG Albrow, P Amaral, SR Amendolia, D Amidei, J Antos, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, P Azzi-Bacchetta, N Bacchetta, MW Bailey, S Bailey, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, M Barone, G Bauer, F Bedeschi, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, S Bertolucci, B Bevensee, A Bhatti, C Bigongiari, M Binkley, D Bisello, RE Blair, C Blocker, K Bloom, S Blusk, A Bocci, A Bodek, W Bokhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, S Van Den Brink, C Bromberg, N Brunner, E Buckley-Geer, J Budagov, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, M Campbell, A Caner, W Carithers, J Carlson, D Carlsmith, J Cassada, A Castro, D Cauz, A Cerri, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, MT Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, S Cihangir, CI Ciobanu, AG Clark, M Cobal, E Cocca, A Connolly, J Conway, J Cooper, M Cordelli, J Guimaraes Da Costa, D Costanzo, D Cronin-Hennessy, R Cropp, R Culbertson, D Dagenhart, F DeJongh, S Dell'Agnello, M Dell'Orso

Abstract:

The oscillation frequency Δmd of B0B̄0 mixing is measured using the partially reconstructed semileptonic decay B̄0→l-ν̄D*+X. The data sample was collected with the CDF detector at the Fermilab Tevatron collider during 1992-1995 by triggering on the existence of two lepton candidates in an event, and corresponds to about 110 pb-1 of p̄p collisions at √s=1.8 TeV. We estimate the proper decay time of the B̄0meson from the measured decay length and reconstructed momentum of the l-D*+ system. The charge of the lepton in the final state identifies the flavor of the B̄0 meson at its decay. The second lepton in the event is used to infer the flavor of the B̄0 meson at production. We measure the oscillation frequency to be Δmd=0.516 ±0.099-0.035+0.029 ps-1, where the first uncertainty is statistical and the second is systematic. ©1999 The American Physical Society.
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