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Neutral strange particle production in antineutrino-neon charged current interactions

Zeitschrift für Physik C Particles and Fields 53:2 (1992) 207-217

Authors:

S Willocq, P Marage, M Aderholz, P Allport, JP Baton, M Berggren, EF Clayton, AM Cooper-Sarkar, O Erriquez, PJW Faulkner, J Guy, PO Hulth, GT Jones, MM Mobayyen, DRO Morrison, M Neveu, S O'Neale, J Sacton, RA Sansum, K Varvell, W Venus, J Wells, W Wittek

Abstract:

Neutral strange particle production in {Mathematical expression} Ne charged current interactions is studied using the bubble chamber BEBC, exposed to the CERN SPS antineutrino wide band beam. From a sample of 1191 neutral strange particles, the inclusive production rates are determined to be (15.7±0.8)% for K0 mesons, (8.2±0.5)% for Λ, (0.4±0.2)% for {Mathematical expression} and (0.6±0.3)% for Σ0 hyperons. The inclusive production properties of K0 mesons and Λ hyperons are investigated. The Λ hyperons are found to be polarized in the production plane. © 1992 Springer-Verlag.
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Two-body Ds+ decays to ηπ+, η′π+, ηρ+, η′ρ+, and φρ+

Physical Review D American Physical Society (APS) 45:11 (1992) 3965-3975

Authors:

M Daoudi, WT Ford, DR Johnson, K Lingel, M Lohner, P Rankin, JG Smith, J Alexander, C Bebek, K Berkelman, D Besson, TE Browder, DG Cassel, E Cheu, DM Coffman, PS Drell, R Ehrlich, RS Galik, M Garcia-Sciveres, B Geiser, B Gittelman, SW Gray, DL Hartill, BK Heltsley, K Honscheid, J Kandaswamy, N Katayama, PC Kim, DL Kreinick, JD Lewis, GS Ludwig, J Masui, J Mevissen, NB Mistry, S Nandi, CR Ng, E Nordberg, C O'Grady, JR Patterson, D Peterson, M Pisharody, D Riley, M Sapper, M Selen, H Worden, M Worris, P Avery, A Freyberger, J Rodriguez, J Yelton, S Henderson, K Kinoshita, F Pipkin, M Saulnier, R Wilson, J Wolinski, D Xiao, H Yamamoto, AJ Sadoff, R Ammar, P Baringer, D Coppage, R Davis, M Kelly, N Kwak, H Lam, S Ro, Y Kubota, JK Nelson, D Perticone, R Poling, S Schrenk, MS Alam, IJ Kim, B Nemati, V Romero, CR Sun, P-N Wang, MM Zoeller, G Crawford, R Fulton, KK Gan, T Jensen, H Kagan, R Kass, R Malchow, F Morrow, J Whitmore, P Wilson, F Butler, X Fu, G Kalbfleisch, M Lambrecht, P Skubic, J Snow, P-L Wang, D Bortoletto, DN Brown, J Dominick, RL McIlwain, DH Miller, M Modesitt, EI Shibata, SF Schaffner, IPJ Shipsey, M Battle, J Ernst, H Kroha, S Roberts, K Sparks, EH Thorndike, C-H Wang, M Artuso, M Goldberg, T Haupt, N Horwitz, R Kennett, MD Mestayer, GC Moneti, Y Rozen, P Rubin, T Skwarnicki, S Stone, M Thusalidas, W-M Yao, G Zhu, AV Barnes, J Bartelt, SE Csorna, V Jain, T Letson, DS Akerib, B Barish, DF Cowen, G Eigen, R Stroynowski, J Urheim, AJ Weinstein, RJ Morrison, H Tajima, D Schmidt, M Procario
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Observation of the decay ξc0→Ω−K+

Physics Letters B Elsevier 283:1-2 (1992) 161-164

Authors:

S Henderson, K Kinoshita, F Pipkin, M Saulnier, R Wilson, J Wolinski, D Xiao, H Yamamoto, AJ Sadoff, R Ammar, P Baringer, D Coppage, R Davis, M Kelly, N Kwak, H Lam, S Ro, Y Kubota, M Lattery, JK Nelson, D Perticone, R Poling, S Schrenk, R Wang, MS Alam, IJ Kim, JJ O'Neill, B Nemati, V Romero, H Severini, CR Sun, P-N Wang, MM Zoeller, G Crawford, R Fulton, KK Gan, H Kagan, R Kass, J Lee, R Malchow, F Morrow, MK Sung, J Whitmore, P Wilson, F Butler, X Fu, G Kalbfleisch, M Lambrecht, P Skubic, J Snow, P-L Wang, D Bortoletto, DN Brown, J Dominick, RL McIlwain, DH Miller, M Modesitt, EI Shibata, SF Schaffner, IPJ Shipsey, M Battle, J Ernst, H Kroha, S Roberts, K Sparks, EH Thorndike, C-H Wang, R Stroynowski, M Artuso, M Goldberg, T Haupt, N Horwitz, R Kennett, GC Moneti, S Playfer, Y Rozen, P Rubin, T Skwarnicki, S Stone, M Thulasidas, W-M Yao, G Zhu, AV Barnes, J Bartelt, SE Csorna, V Jain, T Letson, MD Mestayer, DS Akerib, B Barish, DF Cowen, G Eigen, R Stroynowski, J Urheim, AJ Weinstein, RJ Morrison, H Tajima, D Schmidt, D Sperka, M Procario, M Daoudi, WT Ford, DR Johnson, K Lingel, M Lohner, P Rankin, JG Smith, J Alexander, C Bebek, K Berkelman, D Besson, TE Browder, DG Cassel, E Cheu, DM Coffman, PS Drell, R Ehrlich, RS Galik, M Garcia-Sciveres, B Geiser, B Gittelman, SW Gray, DL Hartill, BK Heltsley, K Honscheid, C Jones, J Kandaswamy, N Katayama, PC Kim, DL Kreinick, GS Ludwig, J Masui, J Mevissen, NB Mistry, S Nandi, CR Ng, E Nordberg, C O'Grady, JR Patterson, D Peterson, D Riley, M Sapper, M Selen, H Worden, M Worris, F Würthwein, P Avery, A Freyberger, J Rodriguez, J Yelton
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A search for charged Higgs from top quark decay at the CERN p̄p collider

Physics Letters B 280:1-2 (1992) 137-145

Authors:

J Alitti, G Ambrosini, R Ansari, D Autiero, P Bareyre, IA Bertram, G Blaylock, P Bonamy, K Borer, M Bourliaud, D Buskulic, G Carboni, D Cavalli, V Cavasinni, P Cenci, JC Chollet, C Conta, G Costa, F Costantini, L Cozzi, A Cravero, M Curatolo, A Dell'Acqua, T DelPrete, RS DeWolf, L DiLella, Y Ducros, GF Egan, KF Einsweiler, B Esposito, L Fayard, A Federspiel, R Ferrari, M Fraternali, D Froidevaux, G Fumagalli, JM Gaillard, F Gianotti, O Gildemeister, C Gössling, VG Goggi, S Grünendahl, K Hara, S Hellman, J Hrivnac, H Hufnagel, E Hugentobler, K Hultqvist, E Iacopini, J Incandela, K Jakobs, P Jenni, EE Kluge, N Kurz, S Lami, P Lariccia, M Lefebvre, L Linssen, M Livan, P Lubrano, C Magneville, L Malgeri, L Mandelli, L Mapelli, M Mazzanti, K Meier, B Merkel, JP Meyer, M Moniez, R Moning, M Morganti, L Müller, DJ Munday, M Nessi, F Nessi-Tedaldi, C Onions, T Pal, MA Parker, G Parrour, F Pastore, E Pennacchio, JM Pentney, M Pepe, L Perini, C Petridou, P Petroff, H Plothow-Besch, G Polesello, A Poppleton, K Pretzl, M Primavera, M Punturo, JP Repellin, A Rimoldi, M Sacchi, P Scampoli, J Schacher, B Schmidt, V Simák, SL Singh

Abstract:

The process t→H+b, H+→τ+v, τ+→hadrons+v and its charge conjugate are investigated by seeking an excess in number of observed τ's beyond that expected from the standard model under the assumption of e-τ universality. No such excess is found and new regions of the mH-mt plane are excluded for B(H+→τv) = 0.5 and 1.0. In addition, the ratio of couplings of the τ and e to the W is precisely measured as gwτ/gwe = 1.02 ± 0.04(stat.)±0.04(syst.). © 1992.
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Bound on the tau neutrino magnetic moment from the BEBC beam dump experiment

Physics Letters B 280:1-2 (1992) 153-158

Authors:

AM Cooper-Sarkar, S Sarkar, J Guy, W Venus, PO Hulth, K Hultqvist

Abstract:

We have searched for electrons scattered in the forward direction by neutrinos produced by dumping a 400 GeV/c proton beam on a copper target. We estimate the number of tau neutrinos produced from the decays of Ds mesons in the dump. The data limit the possible magnetic moment of tau neutrinos to be below 5.4×10-7 ωB. This rules out the suggestion that tau neutrinos of mass O(MeV) constitute the dark matter in the universe. © 1992.
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