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Search for higgs bosons decaying to bb̄ and produced in association with W bosons in pp̄ collisions at s=1.96TeV

Physical Review Letters 96:8 (2006)

Authors:

A Abulencia, D Acosta, J Adelman, T Affolder, T Akimoto, MG Albrow, D Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, JF Arguin, T Arisawa, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, P Azzurri, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, V Bartsch, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, A Belloni, E Ben-Haim, D Benjamin, A Beretvas, J Beringer, T Berry, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, A Bolshov, D Bortoletto, J Boudreau, S Bourov, A Boveia, B Brau, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, D Carlsmith, R Carosi, S Carron, M Casarsa, A Castro, P Catastini, D Cauz, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, J Chapman, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, JP Chou, PH Chu, SH Chuang, K Chung, WH Chung

Abstract:

We present a search for Higgs bosons decaying into bb̄ and produced in association with W bosons in pp̄ collisions at s=1.96TeV. This search uses 320pb-1 of the data set accumulated by the upgraded Collider Detector at Fermilab. Events are selected that have a high-transverse momentum electron or muon, missing transverse energy, and two jets, at least one of which is consistent with the hadronization of a b quark. Both the number of events and the dijet mass distribution are consistent with standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching ratio for the Higgs boson or any new particle with similar decay kinematics. These upper limits range from 10 pb for mH=110GeV/c2 to 3 pb for mH=150GeV/c2. © 2006 The American Physical Society.
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Search for scalar bottom quarks from gluino decays in p̄p collisions at s=1.96TeV

Physical Review Letters 96:17 (2006)

Authors:

A Abulencia, D Acosta, J Adelman, T Affolder, T Akimoto, MG Albrow, D Ambrose, S Amerio, D Amidei, A Anastassov, K Anikeev, A Annovi, J Antos, M Aoki, G Apollinari, JF Arguin, T Arisawa, A Artikov, W Ashmanskas, A Attal, F Azfar, P Azzi-Bacchetta, P Azzurri, N Bacchetta, H Bachacou, W Badgett, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, V Bartsch, G Bauer, F Bedeschi, S Behari, S Belforte, G Bellettini, J Bellinger, A Belloni, E Ben-Haim, D Benjamin, A Beretvas, J Beringer, T Berry, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, A Bolshov, D Bortoletto, J Boudreau, S Bourov, A Boveia, B Brau, C Bromberg, E Brubaker, J Budagov, HS Budd, S Budd, K Burkett, G Busetto, P Bussey, KL Byrum, S Cabrera, M Campanelli, M Campbell, F Canelli, A Canepa, D Carlsmith, R Carosi, S Carron, M Casarsa, A Castro, P Catastini, D Cauz, M Cavalli-Sforza, A Cerri, L Cerrito, SH Chang, J Chapman, YC Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, I Cho, K Cho, D Chokheli, JP Chou, PH Chu, SH Chuang, K Chung, WH Chung

Abstract:

We searched for scalar bottom quarks in 156pb-1 of p̄p collisions at s=1.96TeV recorded by the Collider Detector at Fermilab II experiment at the Tevatron. Scalar bottom quarks can be produced from gluino decays in R-parity conserving models of supersymmetry when the mass of the gluino exceeds that of the scalar bottom quark. Then, a scalar bottom quark can decay into a bottom quark and a neutralino. To search for this scenario, we investigated events with large missing transverse energy and at least three jets, two or more of which were identified as containing a secondary vertex from the hadronization of b quarks. We found four candidate events, where 2.6±0.7 are expected from standard model processes, and placed 95% confidence level lower limits on gluino and scalar bottom quark masses of up to 280 and 240GeV/c2, respectively. © 2006 The American Physical Society.
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Stabilization of the ILC final focus using interferometers

EPAC 2006 - Contributions to the Proceedings (2006) 3000-3002

Authors:

D Urner, PA Coe, A Reichold

Abstract:

We are developing a system of interferometers to measure relative motion between two objects (for example, the two final focus quadrupoles of a linear collider) to a few nanometers. Two instruments are under development in the John Adams Institute at the University of Oxford : A distance meter to measure length changes and a straightness monitor to measure perpendicular shifts. We will present the technique, results and resolutions of our distance meter prototype. We also examine the applications of interferometers at the ILC.

The CDF Run IIb Silicon Detector: Design, preproduction, and performance

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 556:2 (2006) 459-481

Authors:

T Akimoto, M Aoki, P Azzi, N Bacchetta, S Behari, D Benjamin, D Bisello, G Bolla, D Bortoletto, A Burghard, G Busetto, S Cabrera, A Canepa, G Cardoso, M Chertok, CI Ciobanu, G Derylo, I Fang, EJ Feng, JP Fernandez, B Flaugher, J Freeman, L Galtieri, J Galyardt, M Garcia-Sciveres, G Giurgiu, I Gorelov, C Haber, D Hale, K Hara, R Harr, C Hill, M Hoeferkamp, J Hoff, B Holbrook, SC Hong, M Hrycyk, TH Hsiung, J Incandela, EJ Jeon, KK Joo, T Junk, H Kahkola, S Karjalainen, S Kim, K Kobayashi, DJ Kong, B Krieger, M Kruse, N Kuznetsova, S Kyre, R Lander, T Landry, R Lauhakangas, J Lee, R-S Lu, P Lujan, P Lukens, E Mandelli, C Manea, P Maksimovic, P Merkel, SN Min, S Moccia, I Nakano, D Naoumov, T Nelson, B Nord, J Novak, T Okusawa, R Orava, Y Orlov, K Osterberg, D Pantano, V Pavlicek, D Pellett, J Pursley, P Riipinen, B Schuyler, S Seidel, A Shenai, A Soha, D Stuart, R Tanaka, M Tavi, H Von der Lippe, J-P Walder, Z Wang, P Watje, Marc Weber, W Wester, K Yamamoto, YC Yang, W Yao, W Yao, R Yarema, JC Yun, F Zetti, T Zimmerman, S Zimmermann, S Zucchelli
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Bottom photoproduction measured using decays into muons in dijet events in e p collisions at √s=318 GeV (pg 012008, vol 70, 2004)

PHYSICAL REVIEW D 74:5 (2006) ARTN 059906

Authors:

S Chekanov, M Derrick, D Krakauer, JH Loizides, S Magill, S Miglioranzi, B Musgrave, J Repond, R Yoshida, MCK Mattingly, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, G Cara Romeo, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, P Giusti, G Iacobucci, A Margiotti, A Montanari, R Nania, F Palmonari, A Pesci, G Sartorelli, A Zichichi, G Aghuzumtsyan, D Bartsch, I Brock, S Goers, H Hartmann, E Hilger, P Irrgang, H-P Jakob, O Kind, U Meyer, E Paul, J Rautenberg, R Renner, A Stifutkin, J Tandler, KC Voss, M Wang, A Weber, DS Bailey, NH Brook, JE Cole, GP Heath, T Namsoo, S Robins, M Wing, M Capua, A Mastroberardino, M Schioppa, G Susinno, JY Kim, YK Kim, JH Lee, IT Lim, MY Pac, A Caldwell, M Helbich, X Liu, B Mellado, Y Ning, S Paganis, Z Ren, WB Schmidke, F Sciulli, J Chwastowski, A Eskreys, J Figiel, A Galas, K Olkiewicz, P Stopa, L Zawiejski, L Adamczyk, T Bold, I Grabowska-Bold, D Kisielewska, AM Kowal, M Kowal, T Kowalski, M Przybycien, L Suszycki, D Szuba, J Szuba, A Kotanski, W Slominski, V Adler, U Behrens, I Bloch, K Borras, V Chiochia, D Dannheim, G Drews, J Fourletova, U Fricke, A Geiser, P Gottlicher, O Gutsche, T Haas, W Hain, S Hillert, B Kahle, U Kotz, H Kowalski, G Kramberger, H Labes, D Lelas, H Lim, B Lohr, R Mankel, I-A Melzer-Pellmann, CN Nguyen, D Notz, AE Nucio-Quiroz, A Polini, A Raval, L Rurua, U Schneekloth, U Stosslein, G Wolf, C Youngman, W Zeuner, S Schlenstedt, G Barbagli, E Gallo, C Genta, PG Pelfer, A Bamberger, A Benen, F Karstens, D Dobur, NN Vlasov, M Bell, PJ Bussey, AT Doyle, J Ferrando, J Hamilton, S Hanlon, DH Saxon, IO Skillicorn, I Gialas, T Carli, T Gosau, U Holm, N Krumnack, E Lohrmann, M Milite, H Salehi, P Schleper, S Stonjek, K Wichmann, K Wick, A Ziegler, Ar Ziegler, C Collins-Tooth, C Foudas, R Goncalo, KR Long, AD Tapper, P Cloth, D Filges, M Kataoka, K Nagano, K Tokushuku, S Yamada, Y Yamazaki, AN Barakbaev, EG Boos, NS Pokrovskiy, BO Zhautykov, D Son, K Piotrzkowski, F Barreiro, C Glasman, O Gonzalez, L Labarga, J del Peso, E Tassi, J Terron, M Vazquez, M Zambrana, M Barbi, F Corriveau, S Gliga, J Lainesse, S Padhi, DG Stairs, R Walsh, T Tsurugai, A Antonov, P Danilov, BA Dolgoshein, D Gladkov, V Sosnovtsev, S Suchkov, RK Dementiev, PF Ermolov, Yu A Golubkov, II Katkov, LA Khein, IA Korzhavina, VA Kuzmin, BB Levchenko, O Yu Lukina, AS Proskuryakov, LM Shcheglova, SA Zotkin, N Coppola, S Grijpink, E Koffeman, P Kooijman, E Maddox, A Pellegrino, S Schagen, H Tiecke, JJ Velthuis, L Wiggers, E de Wolf, N Brummer, B Bylsma, LS Durkin, TY Ling, AM Cooper-Sarkar, A Cottrell, RCE Devenish, B Foster, G Grzelak, C Gwenlan, S Patel, PB Straub, R Walczak, A Bertolin, R Brugnera, R Carlin, F Dal Corso, S Dusini, A Garfagnini, S Limentani, A Longhin, A Parenti, M Posocco, L Stanco, M Turcato, EA Heaphy, F Metlica, BY Oh, JJ Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, C Cormack, JC Hart, NA McCubbin, C Heusch, IH Park, N Pavel, H Abramowicz, A Gabareen, S Kananov, A Kreisel, A Levy, M Kuze, T Fusayasu, S Kagawa, T Kohno, T Tawara, T Yamashita, R Hamatsu, T Hirose, M Inuzuka, H Kaji, S Kitamura, K Matsuzawa, MI Ferrero, V Monaco, R Sacchi, A Solano, M Arneodo, M Ruspa, T Koop, JF Martin, A Mirea, JM Butterworth, R Hall-Wilton, TW Jones, MS Lightwood, MR Sutton, C Targett-Adams, J Ciborowski, R Ciesielski, P Luzniak, RJ Nowak, JM Pawlak, J Sztuk, T Tymieniecka, A Ukleja, J Ukleja, AF Zarnecki, M Adamus, P Plucinski, Y Eisenberg, LK Gladilin, D Hochman, U Karshon, M Riveline, D Kçira, S Lammers, L Li, DD Reeder, M Rosin, AA Savin, WH Smith, A Deshpande, S Dhawan, S Bhadra, CD Catterall, S Fourletov, G Hartner, S Menary, M Soares, J Standage
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