Accelerator Neutrinos

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Recent results from the minos experiment

Frascati Physics Series 47:SPEC. ISS. (2008) 133-140

Abstract:

MINOS is a long baseline neutrino oscillation experiment. Protons from the Fermilab main injector are used to generate an intense muon neutrino beam, which is directed at the Soudan underground laboratory in Northern Minnesota. The result from two years of running with a total exposure of 2.5 × 10 20 protons on target from the NuMI beam is reported. We made a preliminary measurement by comparing the event rate and energy spectra of charge current muon neutrino interactions in the two detectors, which are 1 and 735 km from the neutrino production target. The data is consistent with νμ to ντ oscillation in the so-called atmospheric parameter range with Δm2 = (2.38+0.20-0.16) * 10-3eV2 and sin2 2θ = 1-0.08. Copyright © 2008, by INFN.
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Search for charged current coherent pion production on carbon in a few-GeV neutrino beam

Physical Review D American Physical Society (APS) 78:11 (2008) 112004

Authors:

K Hiraide, JL Alcaraz-Aunion, SJ Brice, L Bugel, J Catala-Perez, G Cheng, JM Conrad, Z Djurcic, U Dore, DA Finley, AJ Franke, C Giganti, JJ Gomez-Cadenas, P Guzowski, A Hanson, Y Hayato, G Jover-Manas, G Karagiorgi, T Katori, YK Kobayashi, T Kobilarcik, H Kubo, Y Kurimoto, WC Louis, PF Loverre, L Ludovici, KBM Mahn, C Mariani, S Masuike, K Matsuoka, W Metcalf, G Mills, G Mitsuka, Y Miyachi, S Mizugashira, CD Moore, Y Nakajima, T Nakaya, R Napora, P Nienaber, V Nguyen, D Orme, M Otani, AD Russell, F Sanchez, MH Shaevitz, T-A Shibata, M Sorel, RJ Stefanski, H Takei, H-K Tanaka, M Tanaka, R Tayloe, IJ Taylor, RJ Tesarek, Y Uchida, R Van de Water, JJ Walding, MO Wascko, H White, MJ Wilking, M Yokoyama, GP Zeller, ED Zimmerman
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The ATLAS experiment at the CERN large hadron collider

Journal of Instrumentation 3:8 (2008)

Authors:

G Aad, E Abat, J Abdallah, AA Abdelalim, A Abdesselam, O Abdinov, BA Abi, M Abolins, H Abramowicz, E Acerbi, BS Acharya, R Achenbach, M Ackers, DL Adams, F Adamyan, TN Addy, M Aderholz, C Adorisio, P Adragna, M Aharrouche, SP Ahlen, F Ahles, A Ahmad, H Ahmed, G Aielli, PF Åkesson, TPA Akesson, AV Akimov, SM Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, M Aleppo, F Alessandria, C Alexa, G Alexander, T Alexopoulos, G Alimonti, M Aliyev, PP Allport, SE Allwood-Spiers, A Aloisio, J Alonso, R Alves, MG Alviggi, K Amako, P Amaral, SP Amaral, G Ambrosini, G Ambrosio, C Amelung, VV Ammosov, A Amorim, N Amram, C Anastopoulos, B Anderson, KJ Anderson, EC Anderssen, A Andreazza, V Andrei, L Andricek, ML Andrieux, XS Anduaga, F Anghinolfi, A Antonaki, M Antonelli, S Antonelli, R Apsimon, G Arabidze, I Aracena, Y Arai, ATH Arce, JP Archambault, JF Arguin, E Arik, M Arik, KE Arms, SR Armstrong, M Arnaud, C Arnault, A Artamonov, S Asai, S Ask, B Åsman, D Asner, L Asquith, K Assamagan, A Astbury, B Athar, T Atkinson, B Aubert, B Auerbach, E Auge, K Augsten, VM Aulchenko, N Austin, G Avolio, R Avramidou, A Axen
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Search for active neutrino disappearance using neutral-current interactions in the MINOS long-baseline experiment.

Phys Rev Lett 101:22 (2008) 221804

Authors:

P Adamson, C Andreopoulos, KE Arms, R Armstrong, DJ Auty, DS Ayres, C Backhouse, B Baller, G Barr, WL Barrett, BR Becker, A Belias, RH Bernstein, D Bhattacharya, M Bishai, A Blake, GJ Bock, J Boehm, DJ Boehnlein, D Bogert, C Bower, E Buckley-Geer, S Cavanaugh, JD Chapman, D Cherdack, S Childress, BC Choudhary, JH Cobb, SJ Coleman, AJ Culling, JK de Jong, M Dierckxsens, MV Diwan, M Dorman, SA Dytman, CO Escobar, JJ Evans, E Falk Harris, GJ Feldman, MV Frohne, HR Gallagher, A Godley, MC Goodman, P Gouffon, R Gran, EW Grashorn, N Grossman, K Grzelak, A Habig, D Harris, PG Harris, J Hartnell, R Hatcher, K Heller, A Himmel, A Holin, L Hsu, J Hylen, GM Irwin, M Ishitsuka, DE Jaffe, C James, D Jensen, T Kafka, SMS Kasahara, JJ Kim, MS Kim, G Koizumi, S Kopp, M Kordosky, DJ Koskinen, SK Kotelnikov, A Kreymer, S Kumaratunga, K Lang, J Ling, PJ Litchfield, RP Litchfield, L Loiacono, P Lucas, J Ma, WA Mann, A Marchionni, ML Marshak, JS Marshall, N Mayer, AM McGowan, JR Meier, MD Messier, CJ Metelko, DG Michael, WH Miller, SR Mishra, CD Moore, J Morfín, L Mualem, S Mufson, S Murgia, J Musser, D Naples, JK Nelson, HB Newman, RJ Nichol, TC Nicholls, JP Ochoa-Ricoux, WP Oliver, R Ospanov, J Paley, V Paolone, A Para, T Patzak, Z Pavlović, G Pawloski, GF Pearce, CW Peck, DA Petyt, R Pittam, RK Plunkett, A Rahaman, RA Rameika, TM Raufer, B Rebel, J Reichenbacher, PA Rodrigues, C Rosenfeld, HA Rubin, VA Ryabov, MC Sanchez, N Saoulidou, J Schneps, P Schreiner, P Shanahan, W Smart, C Smith, A Sousa, B Speakman, P Stamoulis, M Strait, N Tagg, RL Talaga, MA Tavera, J Thomas, MA Thomson, JL Thron, G Tinti, I Trostin, VA Tsarev, G Tzanakos, J Urheim, P Vahle, B Viren, DR Ward, M Watabe, A Weber, RC Webb, A Wehmann, N West, C White, SG Wojcicki, DM Wright, T Yang, K Zhang, R Zwaska, MINOS Collaboration

Abstract:

We report the first detailed comparisons of the rates and spectra of neutral-current neutrino interactions at two widely separated locations. A depletion in the rate at the far site would indicate mixing between nu(mu) and a sterile particle. No anomalous depletion in the reconstructed energy spectrum is observed. Assuming oscillations occur at a single mass-squared splitting, a fit to the neutral- and charged-current energy spectra limits the fraction of nu(mu) oscillating to a sterile neutrino to be below 0.68 at 90% confidence level. A less stringent limit due to a possible contribution to the measured neutral-current event rate at the far site from nu(e) appearance at the current experimental limit is also presented.
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Search for neutral Higgs bosons in multi-b-jet events in pp[over] collisions at sqrt[s]=1.96 TeV.

Phys Rev Lett 101:22 (2008) 221802

Authors:

VM Abazov, B Abbott, M Abolins, BS Acharya, M Adams, T Adams, E Aguilo, SH Ahn, M Ahsan, GD Alexeev, G Alkhazov, A Alton, G Alverson, GA Alves, M Anastasoaie, LS Ancu, T Andeen, S Anderson, B Andrieu, MS Anzelc, M Aoki, Y Arnoud, M Arov, M Arthaud, A Askew, B Asman, ACS Assis Jesus, O Atramentov, C Avila, F Badaud, A Baden, L Bagby, B Baldin, DV Bandurin, P Banerjee, S Banerjee, E Barberis, A-F Barfuss, P Bargassa, P Baringer, J Barreto, JF Bartlett, U Bassler, D Bauer, S Beale, A Bean, M Begalli, M Begel, C Belanger-Champagne, L Bellantoni, A Bellavance, JA Benitez, SB Beri, G Bernardi, R Bernhard, I Bertram, M Besançon, R Beuselinck, VA Bezzubov, PC Bhat, V Bhatnagar, C Biscarat, G Blazey, F Blekman, S Blessing, D Bloch, K Bloom, A Boehnlein, D Boline, TA Bolton, EE Boos, G Borissov, T Bose, A Brandt, R Brock, G Brooijmans, A Bross, D Brown, NJ Buchanan, D Buchholz, M Buehler, V Buescher, V Bunichev, S Burdin, S Burke, TH Burnett, CP Buszello, JM Butler, P Calfayan, S Calvet, J Cammin, W Carvalho, BCK Casey, H Castilla-Valdez, S Chakrabarti, D Chakraborty, K Chan, KM Chan, A Chandra, F Charles, E Cheu, F Chevallier, DK Cho, S Choi, B Choudhary, L Christofek, T Christoudias, S Cihangir, D Claes, J Clutter, M Cooke, WE Cooper, M Corcoran, F Couderc, M-C Cousinou, S Crépé-Renaudin, D Cutts, M Cwiok, H da Motta, A Das, G Davies, K De, SJ de Jong, E De La Cruz-Burelo, C De Oliveira Martins, JD Degenhardt, F Déliot, M Demarteau, R Demina, D Denisov, SP Denisov, S Desai, HT Diehl, M Diesburg, A Dominguez, H Dong, LV Dudko, L Duflot, SR Dugad, D Duggan, A Duperrin, J Dyer, A Dyshkant, M Eads, D Edmunds, J Ellison, VD Elvira, Y Enari, S Eno, P Ermolov, H Evans, A Evdokimov, VN Evdokimov, AV Ferapontov, T Ferbel, F Fiedler, F Filthaut, W Fisher, HE Fisk, M Fortner, H Fox, S Fu, S Fuess, T Gadfort, CF Galea, E Gallas, C Garcia, A Garcia-Bellido, V Gavrilov, P Gay, W Geist, D Gelé, CE Gerber, Y Gershtein, D Gillberg, G Ginther, N Gollub, B Gómez, A Goussiou, PD Grannis, H Greenlee, ZD Greenwood, EM Gregores, G Grenier, Ph Gris, J-F Grivaz, A Grohsjean, S Grünendahl, MW Grünewald, F Guo, J Guo, G Gutierrez, P Gutierrez, A Haas, NJ Hadley, P Haefner, S Hagopian, J Haley, I Hall, RE Hall, L Han, K Harder, A Harel, JM Hauptman, R Hauser, J Hays, T Hebbeker, D Hedin, JG Hegeman, AP Heinson, U Heintz, C Hensel, K Herner, G Hesketh, MD Hildreth, R Hirosky, JD Hobbs, B Hoeneisen, H Hoeth, M Hohlfeld, SJ Hong, S Hossain, P Houben, Y Hu, Z Hubacek, V Hynek, I Iashvili, R Illingworth, AS Ito, S Jabeen, M Jaffré, S Jain, K Jakobs, C Jarvis, R Jesik, K Johns, C Johnson, M Johnson, A Jonckheere, P Jonsson, A Juste, E Kajfasz, JM Kalk, D Karmanov, PA Kasper, I Katsanos, D Kau, V Kaushik, R Kehoe, S Kermiche, N Khalatyan, A Khanov, A Kharchilava, YM Kharzheev, D Khatidze, TJ Kim, MH Kirby, M Kirsch, B Klima, JM Kohli, J-P Konrath, AV Kozelov, J Kraus, D Krop, T Kuhl, A Kumar, A Kupco, T Kurca, VA Kuzmin, J Kvita, F Lacroix, D Lam, S Lammers, G Landsberg, P Lebrun, WM Lee, A Leflat, J Lellouch, J Leveque, J Li, L Li, QZ Li, SM Lietti, JGR Lima, D Lincoln, J Linnemann, VV Lipaev, R Lipton, Y Liu, Z Liu, A Lobodenko, M Lokajicek, P Love, HJ Lubatti, R Luna, AL Lyon, AKA Maciel, D Mackin, RJ Madaras, P Mättig, C Magass, A Magerkurth, PK Mal, HB Malbouisson, S Malik, VL Malyshev, HS Mao, Y Maravin, B Martin, R McCarthy, A Melnitchouk, L Mendoza, PG Mercadante, M Merkin, KW Merritt, A Meyer, J Meyer, T Millet, J Mitrevski, RK Mommsen, NK Mondal, RW Moore, T Moulik, GS Muanza, M Mulhearn, O Mundal, L Mundim, E Nagy, M Naimuddin, M Narain, NA Naumann, HA Neal, JP Negret, P Neustroev, H Nilsen, H Nogima, SF Novaes, T Nunnemann, V O'Dell, DC O'Neil, G Obrant, C Ochando, D Onoprienko, N Oshima, N Osman, J Osta, R Otec, GJ Otero y Garzón, M Owen, P Padley, M Pangilinan, N Parashar, S-J Park, SK Park, J Parsons, R Partridge, N Parua, A Patwa, G Pawloski, B Penning, M Perfilov, K Peters, Y Peters, P Pétroff, M Petteni, R Piegaia, J Piper, M-A Pleier, PLM Podesta-Lerma, VM Podstavkov, Y Pogorelov, M-E Pol, P Polozov, BG Pope, AV Popov, C Potter, WL Prado da Silva, HB Prosper, S Protopopescu, J Qian, A Quadt, B Quinn, A Rakitine, MS Rangel, K Ranjan, PN Ratoff, P Renkel, S Reucroft, P Rich, J Rieger, M Rijssenbeek, I Ripp-Baudot, F Rizatdinova, S Robinson, RF Rodrigues, M Rominsky, C Royon, P Rubinov, R Ruchti, G Safronov, G Sajot, A Sánchez-Hernández, MP Sanders, B Sanghi, A Santoro, G Savage, L Sawyer, T Scanlon, D Schaile, RD Schamberger, Y Scheglov, H Schellman, T Schliephake, C Schwanenberger, A Schwartzman, R Schwienhorst, J Sekaric, H Severini, E Shabalina, M Shamim, V Shary, AA Shchukin, RK Shivpuri, V Siccardi, V Simak, V Sirotenko, P Skubic, P Slattery, D Smirnov, GR Snow, J Snow, S Snyder, S Söldner-Rembold, L Sonnenschein, A Sopczak, M Sosebee, K Soustruznik, B Spurlock, J Stark, J Steele, V Stolin, DA Stoyanova, J Strandberg, S Strandberg, MA Strang, E Strauss, M Strauss, R Ströhmer, D Strom, L Stutte, S Sumowidagdo, P Svoisky, A Sznajder, P Tamburello, A Tanasijczuk, W Taylor, J Temple, B Tiller, F Tissandier, M Titov, VV Tokmenin, T Toole, I Torchiani, T Trefzger, D Tsybychev, B Tuchming, C Tully, PM Tuts, R Unalan, L Uvarov, S Uvarov, S Uzunyan, B Vachon, PJ van den Berg, R Van Kooten, WM van Leeuwen, N Varelas, EW Varnes, IA Vasilyev, M Vaupel, P Verdier, LS Vertogradov, M Verzocchi, F Villeneuve-Seguier, P Vint, P Vokac, E Von Toerne, M Voutilainen, R Wagner, HD Wahl, L Wang, MHLS Wang, J Warchol, G Watts, M Wayne, G Weber, M Weber, L Welty-Rieger, A Wenger, N Wermes, M Wetstein, A White, D Wicke, GW Wilson, SJ Wimpenny, M Wobisch, DR Wood, TR Wyatt, Y Xie, S Yacoob, R Yamada, M Yan, T Yasuda, YA Yatsunenko, K Yip, HD Yoo, SW Youn, J Yu, C Zeitnitz, T Zhao, B Zhou, J Zhu, M Zielinski, D Zieminska, A Zieminski, L Zivkovic, V Zutshi, EG Zverev, D0 Collaboration

Abstract:

Data recorded by the D0 experiment at the Fermilab Tevatron Collider are analyzed to search for neutral Higgs bosons produced in association with b quarks. This production mode can be enhanced in the minimal supersymmetric standard model (MSSM). The search is performed in the three b quark channel using multijet triggered events corresponding to an integrated luminosity of 1 fb(-1). No statistically significant excess of events with respect to the predicted background is observed and limits are set in the MSSM parameter space.
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