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Measurement of charge asymmetries in charmless hadronic B meson decays

Physical Review Letters 85:3 (2000) 525-529

Authors:

S Chen, J Fast, JW Hinson, J Lee, N Menon, DH Miller, EI Shibata, IPJ Shipsey, V Pavlunin, D Cronin-Hennessy, Y Kwon, AL Lyon, LH Thorndike, CP Jessop, H Marsiske, ML Perl, V Savinov, D Ugolini, X Zhou, TL Coan, V Fadeyev, Y Maravin, I Narsky, R Stroynowski, J Ye, T Wlodek, M Artuso, R Ayad, C Boulahouache, K Bukin, E Dambasuren, S Karamnov, S Kopp, G Majumder, GC Moneti, R Mountain, S Schuh, T Skwarnicki, S Stone, G Viehhauser, JC Wang, A Wolf, J Wu, SE Csorna, I Danko, KW McLean, S Márka, Z Xu, R Godang, K Kinoshita, IC Lai, S Schrenk, G Bonvicini, D Cinabro, LP Perera, GJ Zhou, G Eigen, E Lipeles, M Schmidtler, A Shapiro, WM Sun, AJ Weinstein, F Würthwein, DE Jaffe, G Masek, HP Paar, EM Potter, S Prell, V Sharma, DM Asner, A Eppich, J Gronberg, TS Hill, DJ Lange, RJ Morrison, HN Nelson, RA Briere, BH Behrens, WT Ford, A Gritsan, J Roy, JG Smith, JP Alexander, R Baker, C Bebek, BE Berger, K Berkelman, F Blanc, V Boisvert, DG Cassel, M Dickson, PS Drell, KM Ecklund, R Ehrlich, AD Foland, P Gaidarev, L Gibbons, B Gittelman, SW Gray, DL Hartill

Abstract:

Searches for CP violation in decays of B mesons to three Kπ modes, K±π±, K±π0, KS0π±, the mode K±η′, and the vector-pseudoscalar mode ωpi±. These decay modes have well-measured branching ratios and significant signal yields and are self-tagging. Any possible systematic bias on charge asymmetries is negligible compared to the statistical measurement errors. The dependence of the likelihood function on the charge asymmetry for each of the five decay modes is described. All five modes showed no evidence for CP violation.
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The infrared counterpart of the Z source GX 5-1

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 315:4 (2000) l57-l60

Authors:

PG Jonker, RP Fender, NC Hambly, M van der Klis
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An Early-Time Infrared and Optical Study of the Type Ia Supernova 1998bu in M96

(2000)

Authors:

M Hernandez, WPS Meikle, A Aparicio, CR Benn, MR Burleigh, AC Chrysostomou, AJL Fernandes, TR Geballe, PL Hammersley, J Iglesias-Paramo, DJ James, PA James, SN Kemp, TA Lister, D Martinez-Delgado, A Oscoz, DL Pollacco, M Rozas, SJ Smartt, P Sorensen, RA Swaters, JH Telting, WD Vacca, NA Walton, MR Zapatero-Osorio
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Search for the charged Higgs boson in the decays of top quark pairs in the eτ and μτ channels at √s=1.8 TeV

Physical Review D Particles Fields Gravitation and Cosmology 62:1 (2000) 1-7

Authors:

T Affolder, H Akimoto, A Akopian, MG Albrow, P Amaral, SR Amendolia, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, T Asakawa, W Ashmanskas, M Atac, F Azfar, 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, B Blumenfeld, SR Blusk, A Bocci, A Bodek, W Bokhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, S Van Den Brink, C Bromberg, M Brozovic, N Bruner, 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, AW Chan, 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, A Connolly, J Conway, J Cooper, M Cordelli, D Costanzo, J Cranshaw, D Cronin-Hennessy, R Cropp, R Culbertson, D Dagenhart

Abstract:

Top quark production offers the unique opportunity to search for a charged Higgs boson (H±), as the contribution from t→H+b→τ+νb can be large in extensions of the standard model. We use results from a search for top quark pair production by the Collider Detector at Fermilab (CDF) in the eτ+Slashed E signT+jets and μτ+Slashed E signT+jets signatures to set an upper limit on the branching ratio of ℬ(t→H+b) in 106 pb-1 of data. The upper limit is in the range 0.5 to 0.6 at 95% C.L. for H+ masses in the range 60 to 160 GeV, assuming the branching ratio for H+→τν is 100%. The τ lepton is detected through its 1-prong and 3-prong hadronic decays. ©2000 The American Physical Society.
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ASTRONOMY: A New Source of Gamma Rays.

Science American Association for the Advancement of Science (AAAS) 288:5475 (2000) 2326
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