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Search for chargino-neutralino production in pp collisions at √s = 1.8TeV

Physical Review Letters 76:23 (1996) 4307-4311

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, SR Amendolia, D Amidei, J Antos, C Anway-Wiese, S Aota, G Apollinari, T Asakawa, W Ashmanskas, M Atac, P Auchincloss, F Azfar, P Azzi-Bacchetta, N Bacchetta, W Badgett, S Bagdasarov, MW Bailey, J Bao, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, E Barzi, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, J Berryhill, S Bertolucci, A Bhatti, K Biery, M Binkley, D Bisello, RE Blair, C Blocker, A Bodek, W Bokhari, V Bolognesi, D Bortoletto, J Boudreau, L Breccia, C Bromberg, N Bruner, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, J Cammerata, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, D Cauz, Y Cen, F Cervelli, HY Chao, J Chapman, MT Cheng, G Chiarelli, T Chikamatsu, CN Chiou, L Christofek, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, C Couyoumtzelis, D Crane, D Cronin-Hennessy, R Culbertson, JD Cunningham, T Daniels, F De Jongh, S Delchamps, S Dell-Agnello, M Dell-Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin

Abstract:

We have searched for chargino-neutralino production (χ± 1χ0 2) in 1.8 TeV pp collisions, followed by their leptonic decays χ± 1 → χ0 1ℓ±ν and χ0 2→χ0 1ℓ+ℓ-. These trilepton events are expected within a framework of the minimal supersymmetric standard model (MSSM). In a 19.1pb-1 data sample collected with a Collider Detector at Fermilab, no trilepton events were observed. Upper limits on σ(pp → χ± 1χ0 2)BR(χ± 1→0 2→3ℓ + X) were obtained for various MSSM parameter space regions, yielding new 95% confidence level lower limits for the neutralino (χ0 2) mass which extend as high as 49GeV/c2. © 1996 The American Physical Society.
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Search for gluino and squark cascade decays at the fermilab tevatron collider

Physical Review Letters 76:12 (1996) 2006-2010

Authors:

F Abe, H Akimoto, A Akopian, MG Albrow, SR Amendolia, D Amidei, J Antos, C Anway-Wiese, S Aota, G Apollinari, T Asakawa, W Ashmanskas, M Atac, P Auchincloss, F Azfar, P Azzi-Bacchetta, N Bacchetta, W Badgett, S Bagdasarov, MW Bailey, J Bao, P De Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, G Bauer, T Baumann, F Bedeschi, S Behrends, S Belforte, G Bellettini, J Bellinger, D Benjamin, J Benlloch, J Bensinger, D Benton, A Beretvas, JP Berge, J Berryhill, S Bertolucci, A Bhatti, K Biery, M Binkley, D Bisello, RE Blair, C Blocker, A Bodek, W Bokhari, V Bolognesi, D Bortoletto, J Boudreau, L Breccia, C Bromberg, E Buckley-Geer, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, J Cammerata, C Campagnari, M Campbell, A Caner, W Carithers, D Carlsmith, A Castro, D Cauz, Y Cen, F Cervelli, HY Chao, J Chapman, MT Cheng, G Chiarelli, T Chikamatsu, CN Chiou, L Christofek, S Cihangir, AG Clark, M Cobal, M Contreras, J Conway, J Cooper, M Cordelli, C Couyoumtzelis, D Crane, D Cronin-Hennessy, R Culbertson, JD Cunningham, T Daniels, F De Jongh, S Delchamps, S Dell-Agnello, M Dell-Orso, L Demortier, B Denby, M Deninno, PF Derwent, T Devlin, M Dickson, JR Dittmann

Abstract:

We report on a search for supersymmetry using dilepton events which complements the classic missing ET plus multijet analyses. Using 19pb-1 of pp collisions at √s = 1.8TeV recorded with the Collider Detector at Fermilab we have searched for squarks and gluinos decaying into charginos and producing events with two leptons. We observe one candidate event. In comparison, the expected number of background events from standard model processes is 2.39±0.63(stat)+0.77 -0.42(syst). Hence we set limits on gluino and squark production based on predictions from the supergravity inspired minimal supersymmetric extension of the standard model. © 1996 The American Physical Society.
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Observation of the Ξc+ charmed baryon decays to Σ+K−π+, Σ+K∗0, and ΛK−π+π+

Physics Letters B Elsevier 365:1-4 (1996) 431-436

Authors:

CLEO Collaboration, T Bergfeld, BI Eisenstein, J Ernst, GE Gladding, GD Gollin, M Palmer, M Selen, JJ Thaler, KW Edwards, KW McLean, M Ogg, A Bellerive, DI Britton, ERF Hyatt, R Janicek, DB MacFarlane, PM Patel, B Spaan, AJ Sadoff, R Ammar, P Baringer, A Bean, D Besson, D Coppage, N Copty, R Davis, N Hancock, S Kotov, I Kravchenko, N Kwak, Y Kubota, M Lattery, M Momayezi, JK Nelson, S Patton, R Poling, V Savinov, S Schrenk, R Wang, MS Alam, IJ Kim, Z Ling, AH Mahmood, JJ O'Neill, H Severini, CR Sun, F Wappler, G Crawford, JE Duboscq, R Fulton, D Fujino, KK Gan, K Honscheid, H Kagan, R Kass, J Lee, M Sung, C White, A Wolf, MM Zoeller, X Fu, B Nemati, WR Ross, P Skubic, M Wood, M Bishai, J Fast, E Gerndt, JW Hinson, T Miao, DH Miller, M Modesitt, EI Shibata, IPJ Shipsey, PN Wang, L Gibbons, SD Johnson, Y Kwon, S Roberts, EH Thorndike, TE Coan, J Dominick, V Fadeyev, I Korolkov, M Lambrecht, S Sanghera, V Shelkov, T Skwarnicki, R Stroynowski, I Volobouev, G Wei, M Artuso, M Gao, M Goldberg, D He, N Horwitz, S Kopp, GC Moneti, R Mountain, F Muheim, Y Mukhin, S Playfer, S Stone, X Xing, J Bartelt, SE Csorna, V Jain, S Marka, D Gibaut, K Kinoshita, P Pomianowski, B Barish, M Chadha, S Chan, DF Cowen, G Eigen, JS Miller, C O'Grady, J Urheim, AJ Weinstein, F Würthwein, DM Asner, M Athanas, DW Bliss, WS Brower, G Masek, HP Paar, J Gronberg, CM Korte, R Kutschke, S Menary, RJ Morrison, S Nakanishi, HN Nelson, TK Nelson, C Qiao, JD Richman, D Roberts, A Ryd, H Tajima, MS Witherell, R Balest, K Cho, WT Ford, M Lohner, H Park, P Rankin, JG Smith, JP Alexander, C Bebek, BE Berger, K Berkelman, K Bloom, TE Browder, DG Cassel, HA Cho, DM Coffman, DS Crowcroft, M Dickson, PS Drell, DJ Dumas, R Ehrlich, R Elia, P Gaidarev, M Garcia-Sciveres, B Gittelman, SW Gray, DL Hartill, BK Heltsley, S Henderson, CD Jones, SL Jones, J Kandaswamy, N Katayama, PC Kim, DL Kreinick, T Lee, Y Liu, GS Ludwig, J Masui, J Mevissen, NB Mistry, CR Ng, E Nordberg, JR Patterson, D Peterson, D Riley, A Soffer, P Avery, A Freyberger, K Lingel, C Prescott, J Rodriguez, S Yang, J Yelton, G Brandenburg, D Cinabro, T Liu, M Saulnier, R Wilson, H Yamamoto
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Colour (approximate to age?) gradients in spiral galaxies

NEW LIGHT ON GALAXY EVOLUTION (1996) 358-358
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How many ULIRGs are mergers

IAU SYMP (1996) 354-354

Authors:

DL Clements, RG Mcmahon, WJ Sutherland, W Saunders
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