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Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Fermilab Tevatron

Physical Review D - Particles, Fields, Gravitation and Cosmology 69:1 (2004)

Authors:

D Acosta, T Affolder, H Akimoto, MG Albrow, D Ambrose, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, W Badgett, S Bailey, P Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Behari, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, J Berryhill, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, G Bolla, A Bolshov, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, C Bromberg, M Brozovic, E Brubaker, N Bruner, J Budagov, HS Budd, K Burkett, G Busetto, KL Byrum, S Cabrera, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, A Castro, D Cauz, A Cerri, L Cerrito, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, M Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, JY Chung, W Chung, YS Chung, CI Ciobanu, AG Clark, M Coca, A Connolly, M Convery, J Conway, M Cordelli, J Cranshaw, R Culbertson, D Dagenhart

Abstract:

We have measured the number of like-sign (LS) and opposite-sign (OS) lepton pairs arising from double semileptonic decays of b and [Formula Presented] hadrons, pair produced at the Fermilab Tevatron collider. The data samples were collected with the Collider Detector at Fermilab during the 1992–1995 collider run by triggering on the existence of [Formula Presented] or [Formula Presented] candidates in an event. The observed ratio of LS to OS dileptons leads to a measurement of the average time-integrated mixing probability of all produced b-flavored hadrons which decay weakly, [Formula Presented] that is significantly larger than the world average [Formula Presented] © 2004 The American Physical Society.
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The Level-3 Trigger at the CDF Experiment at Tevatron Run II

Institute of Electrical and Electronics Engineers (IEEE) 2 (2004) 1067-1071

Authors:

YS Chung, G De Lentdecker, S Demers, BY Han, B Kilminster, J Lee, K McFarland, A Vaiciulis, F Azfar, T Huffman, T Akimoto, H Kobayashi, H Matsunaga, M Shimojima, K Tollefson, D Torretta, D Waters
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An ultra-relativistic outflow from a neutron star accreting gas from a companion

Nature Springer Nature 427:6971 (2004) 222-224

Authors:

Rob Fender, Kinwah Wu, Helen Johnston, Tasso Tzioumis, Peter Jonker, Ralph Spencer, Michiel van der Klis
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A SAURON look at galaxy bulges

ASTRON NACHR 325:2 (2004) 92-95

Authors:

J Falcon-Barroso, R Bacon, M Bureau, M Cappellari, RL Davies, E Emsellem, D Krajnovic, H Kuntschner, R McDermid, RF Peletier, PT de Zeeuw

Abstract:

Kinematic and population studies show that bulges are generally rotationally flattened systems similar to low-luminosity ellipticals. However, observations with state-of-the-art integral field spectrographs, such as SAURON, indicate that the situation is much more complex, and allow us to investigate phenomena such as triaxiality, kinematic decoupling and population substructure, and to study their connection to current formation and evolution scenarios for bulges of early-type galaxies. We present the examples of two SO bulges from galaxies in our sample of nearby galaxies: one that shows all the properties expected from classical bulges (NGC 5866), and another case that presents kinematic features appropriate for barred disk galaxies (NGC 7332).
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A large area search for radio-loud quasars within the epoch of reionization

MULTIWAVELENGTH AGN SURVEYS (2004) 133-136

Authors:

MJ Jarvis, S Rawlings, FE Barrio, GJ Hill, A Bauer, S Croft
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