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

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.

Precise measurement of the decay KL → π0γγ

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 536:3-4 (2002) 229-240

Authors:

A Lai, D Marras, 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, L Gatignon, A Gonidec, B Gorini, G Govi, P Grafström, W Kubischta, A Lacourt, M Lenti, S Luitz, I Mikulec, A Norton, S Palestini, B Panzer-Steindel, G Tatishvili, H Taureg, M Velasco, H Wahl, C Cheshkov, P Hristov, V Kekelidze, D Madigojine, N Molokanova, Y Potrebenikov, A Zinchenko, I Knowles, V Martin, R Sacco, A Walker, M Contalbrigo, P Dalpiaz, J Duclos, PL Frabetti, A Gianoli, M Martini

Abstract:

The decay rate of KL → π0 γγ has been measured with the NA48 detector at the CERN SPS. A total of 2558 KL π0γγ candidates have been observed with a residual background of 3.2%. The branching ratio is determined to be (1.36 ± 0.03(stat) ± 0.03(syst) ± 0.03(norm)) × 10-6 and the vector coupling constant av = -0.46 ± 0.03(stat) ± 0.04(syst). This result suggests that the CP-violation effects are dominating in the KL → π0e+e- decay. An upper limit for the KL → π0γγ decay rate in the two photon mass region mγγ < mπ0 is also given. © 2002 Published by Elsevier Science B.V.

Search for the decay Bs→μ+μ-φ in pp̄ collisions at √s = 1.8 TeV

Physical Review D - Particles, Fields, Gravitation and Cosmology 65:11 (2002) 1111011-1111016

Authors:

D Acosta, T Affolder, H Akimoto, A Akopian, MG Albrow, P Amaral, D Amidei, K Anikeev, J Antos, G Apollinari, T Arisawa, A Artikov, T Asakawa, W Ashmanskas, F Azfar, P Azzi-Bacchetta, N Bacchetta, H Bachacou, S Bailey, P de Barbaro, A Barbaro-Galtieri, VE Barnes, BA Barnett, S Baroiant, M Barone, G Bauer, F Bedeschi, S Belforte, WH Bell, G Bellettini, J Bellinger, D Benjamin, J Bensinger, A Beretvas, JP Berge, J Berryhill, A Bhatti, M Binkley, D Bisello, M Bishai, RE Blair, C Blocker, K Bloom, B Blumenfeld, SR Blusk, A Bocci, A Bodek, W Bokhari, G Bolla, Y Bonushkin, D Bortoletto, J Boudreau, A Brandl, S van den Brink, C Bromberg, M Brozovic, E Brubaker, N Bruner, E Buckley-Geer, J Budagov, HS Budd, K Burkett, G Busetto, A Byon-Wagner, KL Byrum, S Cabrera, P Calafiura, M Campbell, W Carithers, J Carlson, D Carlsmith, W Caskey, A Castro, D Cauz, A Cerri, AW Chan, PS Chang, PT Chang, J Chapman, C Chen, YC Chen, MT Cheng, M Chertok, G Chiarelli, I Chirikov-Zorin, G Chlachidze, F Chlebana, L Christofek, ML Chu, YS Chung, CI Ciobanu, AG Clark, AP Colijn, A Connolly, J Conway, M Cordelli, J Cranshaw, R Cropp, R Culbertson, D Dagenhart

Abstract:

We present a search for the flavor-changing neutral current decay Bs→μ+μ-φ in pp̄ collisions at √s = 1.8 TeV, using 91 pb-1 of data collected at the Collider Detector at Fermilab (CDF). We find two candidate events for this decay, which are consistent with the background estimate of one event, and set an upper limit on the branching fraction of B(Bs→ μ+μ-φ)<6.7×10-5 at a 95% confidence level. This is the first limit on the branching fraction of this decay.

The MINOS Scintillator Calorimeter System

IEEE Transactions on Nuclear Science Institute of Electrical and Electronics Engineers (IEEE) 49:3 (2002) 861

Authors:

P Adamson, KV Alexandrov, G Alexeev, T Alexopoulos, WWM Allison, GJ Alner, B Anderson, DF Anderson, K Anderson, C Andreopoulos, C Arroyo, D Attree, F Avignone, DS Ayres, B Baller, B Barsh, M Barker, PD Barnes, WL Barrett, RH Bernstien, S Bilenky, GJ Bock, DJ Boehnlein, D Bogert, PM Border, C Bower, E Buckley-Geer, A Byon-Wagner, TR Chase, S Chernichenko, S Childress, BC Choudhary, JH Cobb, A Cohee, JD Cossairt, H Courant, JW Dawson, D DeMuth, PJ Dervan, A DeSanto, N Diaczenko, MV Diwan, G Drake, M Drew, R Ducar, T Durkin, R Edgecock, S Eichblatt, A Erwin, E Falk Harris, GJ Feldman, N Felt, TH Fields, HR Gallagher, M Gebhard, Yu Gilitsky, N Giokaris, MC Goodman, Yu Gornushkin, N Grossman, JJ Grudzinski, VJ Guarino, V Gudkov, J Guo, Yu Gutnikov, R Halsall, J Hanson, D Harris, PG Harris, E Hartouni, R Hatcher, S Hayden, R Heinz, K Heller, N Hill, QH Hu, T Hu, J Hylen, M Ignatenko, G Irwin, C James, T Joffe-Minor, T Kafka, SMS Kasahara, E Katsavounidis, J Kilmer, HY Kim, V Kochetkov, G Koizumi, S Kopp, M Kordosky, D Krakauer, Z Krumstein, A Kulik, YF Lai, K Lang, C Laughton, R LeBeau, A Lebedev, R Lee, PJ Litchfield, J Liu, NP Longley, P Lucas, S Madani, V Makeev, WA Mann, A Marchionni, ML Marshak, J McDonald, JR Meier, E Melnikov, GI Merzon, MD Messier, DG Michael, RH Milburn, L Miller, WH Miller, SR Mishra, PS Miyagawa, J Mofin, R Morse, L Mualem, S Mufson, M Murtagh, J Musser, A Napier, D Naples, C Nelson, JK Nelson, H Newman, TC Nicholls, A Nozdrin, J Oliver, W Oliver, A Olshevski, V Onuchin, V Paolone, A Para, T Patzak, GF Pearce, N Pearson, CW Peck, C Perry, EA Peterson, DA Petyt, A Pla-Dalmau, RK Plunkett, LE Price, DR Pushka, RA Rameika, AL Read, B Rebel, C Rosenfeld, K Ruddick, VA Ryabov, R Saakyan, A Sadovski, M Sanchez, N Saoulidou, J Schneps, PV Schoessow, V Semenov, I Shein, BW Sheng, A Sisakian, W Smart, V Smirnitsky, C Smith, PN Smith, V Smotriaev, A Soldatov, N Solomey, R Soltz, NI Starkov, P Sullivan, EC Swallow, M Szigety, R Talaga, J Thomas, JL Thron, V Tokmenin, DN Tovee, R Trendler, J Trevor, I Trostin, VA Tsarev, G Tzanakos, G Unel, J Urheim, A Usachev, T Vahle, MM Velasco, L Wai, D Wark, A Weber, RC Webb, A Wehmann, N West, RF White, R Wildberger, R Winston, SG Wojcicki, D Wright, XM Xia, WG Yan, JC Yun, ZA Zhu