Accelerator Neutrinos

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The high-energy gamma-ray fluence and energy spectrum of GRB 970417a from observations with Milagrito

(2002)

Authors:

R Atkins, W Benbow, D Berley, ML Chen, DG Coyne, BL Dingus, DE Dorfan, RW Ellsworth, D Evans, A Falcone, L Fleysher, R Fleysher, G Gisler, MM Gonzalez Sanchez, JA Goodman, TJ Haines, CM Hoffman, S Hugenberger, LA Kelley, S Klein, I Leonor, JF McCullough, JE McEnery, RS Miller, AI Mincer, MF Morales, P Nemethy, JM Ryan, FW Samuelson, B Shen, A Shoup, C Sinnis, AJ Smith, GW Sullivan, T Tumer, K Wang, MO Wascko, S Westerhoff, DA Williams, T Yang, GB Yodh
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Improved W boson mass measurement with the DØ detector

Physical Review D - Particles, Fields, Gravitation and Cosmology 66:1 II (2002) 120011-1200118

Authors:

VM Abazov, B Abbott, A Abdesselam, M Abolins, V Abramov, BS Acharya, DL Adams, M Adams, SN Ahmed, GD Alexeev, A Alton, GA Alves, EW Anderson, Y Arnoud, C Avila, MM Baarmand, VV Babintsev, L Babukhadia, TC Bacon, A Baden, B Baldin, PW Balm, S Banerjee, E Barberis, P Baringer, J Barreto, JF Bartlett, U Bassler, D Bauer, A Bean, F Beaudette, M Begel, A Belyaev, SB Beri, G Bernardi, I Bertram, A Besson, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, F Blekman, S Blessing, A Boehnlein, NI Bojko, TA Bolton, F Borcherding, K Bos, T Bose, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, M Buehler, V Buescher, VS Burtovoi, JM Butler, F Canelli, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, KM Chan, SV Chekulaev, DK Cho, S Choi, S Chopra, JH Christenson, M Chung, D Claes, AR Clark, L Coney, B Connolly, WE Cooper, D Coppage, S Crépé-Renaudin, MAC Cummings, D Cutts, GA Davis, K De, SJ de Jong, M Demarteau, R Demina, P Demine, D Denisov, SP Denisov, S Desai, HT Diehl, M Diesburg, S Doulas, Y Ducros, LV Dudko, S Duensing, L Duflot

Abstract:

We have measured the W boson mass using the DØ detector and a data sample of 82 pb-1 from the Fermilab Tevatron collider. This measurement uses W→eν decays, where the electron is close to a boundary of a central electromagnetic calorimeter module. Such "edge" electrons have not been used in any previous DØ analysis, and represent a 14% increase in the W boson sample size. For these electrons, new response and resolution parameters are determined, and revised backgrounds and underlying event energy flow measurements are made. When the current measurement is combined with previous DØ W boson mass measurements, we obtain MW=80.483±0.084 GeV. The 8% improvement from the previous DØ measurement is primarily due to the improved determination of the response parameters for non-edge electrons using the sample of Z bosons with non-edge and edge electrons.
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Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory

Physical Review Letters 89 (2002) article 011301 6 pages

Authors:

NA Jelley, Q.R.Ahmad, R.C.Allen, T.C.Andersen
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Results from SAGE

Nuclear and Particle Physics Proceedings Elsevier 110 (2002) 315-319

Authors:

VM Vermul, JN Abdurashitov, TJ Bowles, ML Cherry, BT Cleveland, R Davis, SR Elliott, VN Gavrin, SV Girin, VV Gorbachev, TV Ibragimova, AV Kalikhov, NG Khairnasov, TV Knodel, K Lande, IN Mirmov, JS Nico, AA Shikhin, WA Teasdale, EP Veretenkin, VM Vermul, DL Wark, PS Wildenhain, JF Wilkerson, VE Yants, GT Zatsepin
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A measurement of the KS lifetime

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 537:1-2 (2002) 28-40

Authors:

A Lai, D Marras, JR Batley, A Bevan, RS Dosanjh, TJ Gershon, B Hay, GE Kalmus, C Lazzeroni, DJ Munday, MD Needham, E Olaiya, MA Parker, TO White, SA Wotton, G Barr, G Bocquet, A Ceccucci, T Cuhadar-Dönszelmann, D Cundy, G D'Agostini, N Doble, V Falaleev, W Funk, L Gatignon, A Gonidec, B Gorini, G Govi, P Grafström, W Kubischta, A Lacourt, M Lenti, S Luitz, JP Matheys, I Mikulec, A Norton, S Palestini, B Panzer-Steindel, D Schinzel, G Tatishvili, H Taureg, M Velasco, O Vossnack, H Wahl, C Cheshkov, A Gaponenko, P Hristov, V Kekelidze, D Madigojine, N Molokanova, Y Potrebenikov, A Tkatchev, A Zinchenko, I Knowles, V Martin, H Parsons, R Sacco, A Walker, M Contalbrigo, P Dalpiaz, J Duclos, PL Frabetti, A Gianoli, M Martini, F Petrucci, M Savrié, M Scarpa, A Bizzeti, M Calvetti, G Collazuol, G Graziani, E Iacopini, F Martelli, M Veltri, HG Becker, H Blümer, D Coward, M Eppard, H Fox, A Hirstius, K Holtz, A Kalter, K Kleinknecht, U Koch, L Köpke, P Lopesda Silva

Abstract:

A measurement of the KS lifetime is presented using data recorded by the NA48 experiment at the CERN-SPS during 1998 and 1999. The KS lifetime is derived from the ratio of decay time distributions in simultaneous, collinear KS and KL beams, giving a result which is approximately independent of the detector acceptance and with reduced systematic errors. The result obtained is τS = (0.89598 ± 0.00048 ± 0.00051) × 10-10 s, where the first error is statistical and the second systematic. © 2002 Published by Elsevier Science B.V.
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