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First observation of the decay Bs0→Ds-Ds+ and measurement of its branching ratio

Physical Review Letters 100:2 (2008)

Authors:

T Aaltonen, J Adelman, T Akimoto, MG Albrow, B Álvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, M Aoki, G Apollinari, A Apresyan, T Arisawa, A Artikov, W Ashmanskas, A Attal, A Aurisano, F Azfar, P Azzi-Bacchetta, P Azzurri, N Bacchetta, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, V Bartsch, G Bauer, PH Beauchemin, F Bedeschi, P Bednar, S Behari, G Bellettini, J Bellinger, A Belloni, D Benjamin, A Beretvas, J Beringer, T Berry, A Bhatti, M Binkley, D Bisello, I Bizjak, RE Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, A Bolshov, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, KL Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, JP Chou, G Choudalakis, SH Chuang, K Chung, WH Chung, YS Chung, CI Ciobanu

Abstract:

We report the observation of the exclusive decay Bs0→Ds-Ds+ at the 7.5 standard deviation level using 355pb-1 of data collected by the CDF II detector in pp̄ collisions at s=1.96TeV at the Fermilab Tevatron. We measure the relative branching ratio B(Bs0→Ds-Ds+)/B(B0→D-Ds+)=1.44-0.44+0.48. Using the world average value for B(B0→D-Ds+), we find B(Bs0→Ds-Ds+)= (9.4-4.2+4.4)×10-3. This provides a lower bound ΔΓsCP/Γs 2B(Bs0→Ds-Ds+)>1.2×10-2 at 95% C.L. © 2008 The American Physical Society.
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Higgs boson searches in CP-conserving and CP-violating MSSM scenarios with the DELPHI detector (The European Physical Journal C (2008) 56 (1-16) DOI:10.1140/epjc/s10052-007-0506-1)

European Physical Journal C 56:1 (2008) 165-170

Authors:

J Abdallah, P Abreu, W Adam, P Adzic, T Albrecht, R Alemany-Fernandez, T Allmendinger, PP Allport, U Amaldi, N Amapane, S Amato, E Anashkin, A Andreazza, S Andringa, N Anjos, P Antilogus, WD Apel, Y Arnoud, S Ask, B Asman, JE Augustin, A Augustinus, P Baillon, A Ballestrero, P Bambade, R Barbier, D Bardin, GJ Barker, A Baroncelli, M Battaglia, M Baubillier, KH Becks, M Begalli, A Behrmann, E Ben-Haim, N Benekos, A Benvenuti, C Berat, M Berggren, L Berntzon, D Bertrand, M Besancon, N Besson, D Bloch, M Blom, M Bluj, M Bonesini, M Boonekamp, PSL Booth, G Borisov, O Botner, B Bouquet, TJV Bowcock, I Boyko, M Bracko, R Brenner, E Brodet, P Bruckman, JM Brunet, B Buschbeck, P Buschmann, M Calvi, T Camporesi, V Canale, F Carena, N Castro, F Cavallo, M Chapkin, P Charpentier, P Checchia, R Chierici, P Chliapnikov, J Chudoba, SU Chung, K Cieslik, P Collins, R Contri, G Cosme, F Cossutti, MJ Costa, D Crennell, J Cuevas, J D'Hondt, J Dalmau, T Da Silva, W Da Silva, G Della Ricca, A De Angelis, W De Boer, C De Clercq, B De Lotto, N De Maria, A De Min, L De Paula, L Di Ciaccio, A Di Simone, K Doroba, J Drees, G Eigen, T Ekelof
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Measurement of the mass and width of the W boson in e+e - collisions at √s = 161-209 GeV

European Physical Journal C 55:1 (2008) 1-38

Authors:

J Abdallah, P Abreu, W Adam, P Adzic, T Albrecht, R Alemany-Fernandez, T Allmendinger, PP Allport, U Amaldi, N Amapane, S Amato, E Anashkin, A Andreazza, S Andringa, N Anjos, P Antilogus, WD Apel, Y Arnoud, S Ask, B Asman, JE Augustin, A Augustinus, P Baillon, A Ballestrero, P Bambade, R Barbier, D Bardin, GJ Barker, A Baroncelli, M Battaglia, M Baubillier, KH Becks, M Begalli, A Behrmann, E Ben-Haim, N Benekos, A Benvenuti, C Berat, M Berggren, D Bertrand, M Besancon, N Besson, D Bloch, M Blom, M Bluj, M Bonesini, M Boonekamp, PSL Booth, G Borisov, O Botner, B Bouquet, TJV Bowcock, I Boyko, M Bracko, R Brenner, E Brodet, P Bruckman, JM Brunet, B Buschbeck, P Buschmann, M Calvi, T Camporesi, V Canale, F Carena, N Castro, F Cavallo, M Chapkin, P Charpentier, P Checchia, R Chierici, P Chliapnikov, J Chudoba, SU Chung, K Cieslik, P Collins, R Contri, G Cosme, F Cossutti, MJ Costa, D Crennell, J Cuevas, J D'Hondt, T Da Silva, W Da Silva, G Della Ricca, A De Angelis, W De Boer, C De Clercq, B De Lotto, N De Maria, A De Min, L De Paula, L Di Ciaccio, A Di Simone, K Doroba, J Drees, A Duperrin, G Eigen, T Ekelof, M Ellert

Abstract:

A measurement of the W boson mass and width has been performed by the DELPHI collaboration using the data collected during the full LEP2 programme (1996-2000). The data sample has an integrated luminosity of 660 pb-1 and was collected over a range of centre-of-mass energies from 161 to 209 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W -→ℓν̄ℓqq̄′ and W +W-→qq̄′ q̄q′ channels. The W mass result for the combined data set is MW = 80.336 ± 0.055 (Stat.) ± 0.028 (Syst.) ± 0.025 (FSI) ± 0.009 (LEP) GeV}/c2, where FSI represents the uncertainty due to final state interaction effects in the qq̄′ q̄q′ channel, and LEP represents that arising from the knowledge of the collision energy of the accelerator. The combined value for the W width is ΓW = 2.404 ± 0.140 (Stat.) ± 0.077 (Syst.) ± 0.065 (FSI) GeV/c 2. These results supersede all values previously published by the DELPHI collaboration. © 2008 Springer-Verlag / Società Italiana di Fisica.
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B, D and K decays

EUROPEAN PHYSICAL JOURNAL C 57:1-2 (2008) 309-492

Authors:

G Buchalla, TK Komatsubara, F Muheim, L Silvestrini, M Artuso, DM Asner, P Ball, E Baracchini, G Bell, M Beneke, J Berryhill, A Bevan, II Bigi, M Blanke, Ch Bobeth, M Bona, F Borzumati, T Browder, T Buanes, O Buchmueller, AJ Buras, S Burdin, DG Cassel, R Cavanaugh, M Ciuchini, P Colangelo, G Crosetti, A Dedes, F De Fazio, S Descotes-Genon, J Dickens, Z Dolezal, S Duerr, U Egede, C Eggel, G Eigen, S Fajfer, Th Feldmann, R Ferrandes, P Gambino, T Gershon, V Gibson, M Giorgi, VV Gligorov, B Golob, A Golutvin, Y Grossman, D Guadagnoli, U Haisch, M Hazumi, S Heinemeyer, G Hiller, D Hitlin, T Huber, T Hurth, T Iijima, A Ishikawa, G Isidori, S Jaeger, A Khodjamirian, P Koppenburg, T Lagouri, U Langenegger, C Lazzeroni, A Lenz, V Lubicz, W Lucha, H Mahlke, D Melikhov, F Mescia, M Misiak, M Nakao, J Napolitano, N Nikitin, U Nierste, K Oide, Y Okada, P Paradisi, F Parodi, M Patel, AA Petrov, TN Pham, M Pierini, S Playfer, G Polesello, A Policicchio, A Poschenrieder, P Raimondi, S Recksiegel, P Reznicek, A Robert, JL Rosner, G Ruggiero, A Sarti, O Schneider, F Schwab, S Simula, S Sivoklokov, P Slavich, C Smith, M Smizanska, A Soni, T Speer, P Spradlin, M Spranger, A Starodumov, B Stech, A Stocchi, S Stone, C Tarantino, F Teubert, S T'Jampens, K Toms, K Trabelsi, S Trine, S Uhlig, V Vagnoni, JJ van Hunen, G Weiglein, A Weiler, G Wilkinson, Y Xie, M Yamauchi, G Zhu, J Zupan, R Zwicky
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Absolute branching fractions of Cabibbo-suppressed D → K(K)over-bar decays

PHYSICAL REVIEW D 77:9 (2008) ARTN 091106

Authors:

G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, J Rademacker, DM Asner, KW Edwards, P Naik, J Reed, RA Briere, T Ferguson, G Tatishvili, H Vogel, ME Watkins, JL Rosner, JP Alexander, DG Cassel, JE Duboscq, R Ehrlich, L Fields, L Gibbons, R Gray, SW Gray, DL Hartill, BK Heltsley, D Hertz, CD Jones, J Kandaswamy, DL Kreinick, VE Kuznetsov, H Mahlke-Kruger, D Mohapatra, H Miyake, PUE Onyisi, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, T Wilksen, SB Athar, R Patel, J Yelton, P Rubin, BI Eisenstein, I Karliner, S Mehrabyan, N Lowrey, M Selen, EJ White, J Wiss, RE Mitchell, MR Shepherd, D Besson, TK Pedlar, D Cronin-Hennessy, KY Gao, J Hietala, Y Kubota, T Klein, BW Lang, R Poling, AW Scott, P Zweber, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, J Libby, A Powell, G Wilkinson, KM Ecklund, W Love, V Savinov, A Lopez, H Mendez, J Ramirez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, M Anderson, JP Cummings, I Danko, D Hu, B Moziak, J Napolitano, Q He, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, M Artuso, S Blusk, S Khalil, J Li, R Mountain, S Nisar, K Randrianarivony, N Sultana, T Skwarnicki, S Stone, JC Wang, LM Zhang
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