Accelerator Neutrinos

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The Baksan gallium solar neutrino experiment

Nuclear and Particle Physics Proceedings Elsevier 16 (1990) 483-484

Authors:

VN Gavrin, SAGE Collaboration, AI Abazov, DN Abdurashitov, OL Anosov, SN Danshin, LA Eroshkina, EL Faizov, VN Gavrin, VI Gayevsky, SV Girin, AV Kalikhov, TV Knodel, II Knyshenko, VN Kornoukhov, SA Mezentseva, IN Mirmov, AI Ostrinsky, VV Petukhov, AM Pshukov, N Ye Revzin, AA Shikhin, Ye D Slusareva, AA Tikhonov, PV Timofeev, EP Veretenkin, VM Vermul, VE Yantz, Yu I Zakharov, GT Zatsepin, VL Zhandarov, TJ Bowles, BT Cleveland, SR Elliott, HA O'Brien, DL Wark, JF Wilkerson, R Davis, K Lande, ML Cherry, RT Kouzes

Observation of the decay KL→϶Ä0γγ

Physics Letters B 242:3-4 (1990) 523-530

Authors:

GD Barr, R Carosi, D Coward, D Cundy, N Doble, L Gatignon, V Gibson, P Grafström, R Hagelberg, G Kesseler, J Van Der Lans, HN Nelson, H Wahl, R Black, DJ Candlin, J Muir, KJ Peach, H Blümer, R Heinz, K Kleinknecht, P Mayer, B Panzer, B Renk, H Rohrer, E Augé, D Fournier, P Heusse, L Iconomidou-Fayard, I Harrus, AM Lutz, O Perdereau, AC Schaffer, L Serin, L Bertanza, A Bigi, P Calafiura, M Calvetti, R Casali, C Cerri, R Fantechi, I Mannelli, A Nappi, GM Pierazzini, H Burkhardt, M Holder, A Kreutz, G Quast, M Rost, HG Sander, W Weihs, R Werthenbach, G Zech

Abstract:

The decay mode KL→϶Ä0γγ has been observed with a signal of 21 events and an expected background of 1.5±0.9 events. A branching ratio for decays with invariant γγ masses above 280 MeV of (2.1±0.6)×10-6 is calculated. This result is compared with the values estimated from theoretical models and has implications for the CP conserving contribution to KL→϶Ä0e+e- decay. © 1990.

Status of the Los Alamos tritium beta decay experiment

Nuclear and Particle Physics Proceedings Elsevier 13 (1990) 514-519

Authors:

TJ Bowles, RGH Robertson, DL Wark, JF Wilkerson, DA Knapp

The status of the Soviet — American gallium neutrino experiment

Nuclear and Particle Physics Proceedings Elsevier 13 (1990) 356-358

Authors:

SAGE collaboration, AI Abazov, DN Abdurashitov, OL Anosov, OV Bychuk, SN Danshin, LA Eroshkina, EL Faizov, VN Gavrin, VI Gayevsky, SV Girin, AV Kalikhov, SM Kireyev, TV Knodel, II Knyshenko, VN Kornoukhov, SA Mezentseva, IN Mirmov, AI Ostrinsky, VV Petukhov, AM Pshukov, N Ye Revzin, AA Shikhin, Ye D Slyusareva, AA Tikhonov, PV Timofeyev, EP Veretenkin, VM Vermul, VE Yantz, Yu Zakharov, GT Zatsepin, VI Zhandarov, TJ Bowles, BT Cleveland, SR Elliott, HA O'Brien, DL Wark, JF Wilkerson, R Davis, K Lande, ML Cherry, RT Kouzes

Study of muons from the direction of Cygnus X-3 using an underground proportional-tube array

Physical Review D 42:9 (1990) 2967-2973

Authors:

JA Kochocki, WWM Allison, GJ Alner, I Ambats, DS Ayres, LJ Balka, GD Barr, WL Barrett, D Benjamin, P Border, CB Brooks, JH Cobb, DJA Cockerill, K Coover, H Courant, B Dahlin, U Dasgupta, JW Dawson, VW Edwards, TH Fields, LM Kirby-Gallagher, C Garcia-Garcia, RH Giles, MC Goodman, K Heller, S Heppelman, N Hill, JH Hoftiezer, DJ Jankowski, K Johns, T Joyce, T Kafka, PJ Litchfield, FV Lopez, M Lowe, WA Mann, ML Marshak, EN May, L McMaster, RH Milburn, W Miller, A Napier, WP Oliver, GF Pearce, DH Perkins, EA Peterson, LE Price, D Roback, DB Rosen, K Ruddick, B Saitta, JL Schlereth, D Schmid, J Schneps, PD Shield, M Shupe, N Sundaralingam, MA Thomson, JL Thron, S Werkema, N West

Abstract:

From July 1987 through March 1988 an array of proportional wire modules was operated as a muon detector at a depth of 2090 meters water equivalent in the Soudan mine in northern Minnesota. A spatial angular resolution of 1.2°was achieved for muon tracking. A clean sample of 1.02×105 muon trajectories recorded underground is used to search for an excess flux of muons from the direction of Cygnus X-3. For muons within the phase interval [0.6, 0.9] of the source's 4.8-h period, 90%-C.L. upper limits for fluxes arriving within 3°and 1.5°half-angle cones centered on the Cygnus X-3 direction are 8.5×1011 cm-2s-1 and 3.1×10-11 cm-2s-1, respectively. © 1990 The American Physical Society.