David Wark: Publications

Recent Results from the T2K Experiment

Nuclear Physics B - Proceedings Supplements 246-247 (2014) 23-28

Authors:

K Abe, N Abgrall, H Aihara, T Akiri, C Andreopoulos, S Aoki, A Ariga, T Ariga, S Assylbekov, D Autiero, M Barbi, GJ Barker, G Barr, M Bass, M Batkiewicz, F Bay, SW Bentham, V Berardi, BE Berger, S Berkman, I Bertram, S Bhadra, FDM Blaszczyk, A Blondel, C Bojechko, SB Boyd, D Brailsford, A Bravar, C Bronner, N Buchanan, RG Calland, J Caravaca Rodríguez, SL Cartwright, R Castillo, MG Catanesi, A Cervera, D Cherdack, G Christodoulou, A Clifton, J Coleman, SJ Coleman, G Collazuol, K Connolly, L Cremonesi, A Curioni, A Dabrowska, I Danko, R Das, S Davis, P de Perio, G De Rosa, T Dealtry, SR Dennis, C Densham, F Di Lodovico, S Di Luise, O Drapier, T Duboyski, F Dufour, J Dumarchez, S Dytman, M Dziewiecki, S Emery, A Ereditato, L Escudero, AJ Finch, E Frank, M Friend, Y Fujii, Y Fukuda, AP Furmanski, V Galymov, A Gaudin, S Giffin, C Giganti, K Gilje, T Golan, JJ Gomez-Cadenas, M Gonin, N Grant, D Gudin, DR Hadley, A Haesler, MD Haigh, P Hamilton, D Hansen, T Hara, M Hartz, T Hasegawa, NC Hastings, Y Hayato, C Hearty, RL Helmer, M Hierholzer, J Hignight, A Hillairet, A Himmel, T Hiraki, S Hirota, J Holeczek

Abstract:

The Tokai to Kamioka (T2K) experiment studies neutrino oscillations using a beam of muon neutrinos produced by an accelerator. The neutrinos travel from J-PARC on the east coast of Japan and are detected 295 kilometers further away in the Super-Kamiokande detector. A complex of near detectors located 280 meters away from the neutrino production target is used to better characterize the neutrino beam and reduce systematic uncertainties. The experiment aims at measuring electronic neutrino appearance (νμ→νe oscillation) to measure the neutrino mixing angle θ13, and muon neutrino disappearance to measure the neutrino mixing angle θ23 and mass splitting |δm322|. We report here electron neutrino appearance results using three years of data, recorded until the 2012 summer, as well as muon neutrino disappearance results based on the data coming from the first two years of the experiment. © 2013 Elsevier B.V.

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Observation of Electron Neutrino Appearance in a Muon Neutrino Beam

(2013)

Authors:

K Abe, J Adam, H Aihara, T Akiri, C Andreopoulos, S Aoki, A Ariga, T Ariga, S Assylbekov, D Autiero, M Barbi, GJ Barker, G Barr, M Bass, M Batkiewicz, F Bay, SW Bentham, V Berardi, BE Berger, S Berkman, I Bertram, S Bhadra, FDM Blaszczyk, A Blondel, C Bojechko, S Bordoni, SB Boyd, D Brailsford, A Bravar, C Bronner, N Buchanan, RG Calland, J Caravaca Rodríguez, SL Cartwright, R Castillo, MG Catanesi, A Cervera, D Cherdack, G Christodoulou, A Clifton, J Coleman, SJ Coleman, G Collazuol, K Connolly, L Cremonesi, A Dabrowska, I Danko, R Das, S Davis, P de Perio, G De Rosa, T Dealtry, SR Dennis, C Densham, F Di Lodovico, S Di Luise, O Drapier, T Duboyski, K Duffy, F Dufour, J Dumarchez, S Dytman, M Dziewiecki, S Emery, A Ereditato, L Escudero, AJ Finch, L Floetotto, M Friend, Y Fujii, Y Fukuda, AP Furmanski, V Galymov, A Gaudin, S Giffin, C Giganti, K Gilje, D Goeldi, T Golan, JJ Gomez-Cadenas, M Gonin, N Grant, D Gudin, DR Hadley, A Haesler, MD Haigh, P Hamilton, D Hansen, T Hara, M Hartz, T Hasegawa, NC Hastings, Y Hayato, C Hearty, RL Helmer, M Hierholzer, J Hignight, A Hillairet, A Himmel, T Hiraki, S Hirota, J Holeczek, S Horikawa, K Huang, AK Ichikawa, K Ieki, M Ieva, M Ikeda, J Imber, J Insler, TJ Irvine, T Ishida, T Ishii, SJ Ives, K Iyogi, A Izmaylov, A Jacob, B Jamieson, RA Johnson, JH Jo, P Jonsson, CK Jung, AC Kaboth, T Kajita, H Kakuno, J Kameda, Y Kanazawa, D Karlen, I Karpikov, E Kearns, M Khabibullin, A Khotjantsev, D Kielczewska, T Kikawa, A Kilinski, J Kim, J Kisiel, P Kitching, T Kobayashi, L Koch, A Kolaceke, A Konaka, LL Kormos, A Korzenev, K Koseki, Y Koshio, I Kreslo, W Kropp, H Kubo, Y Kudenko, S Kumaratunga, R Kurjata, T Kutter, J Lagoda, K Laihem, I Lamont, M Laveder, M Lawe, M Lazos, KP Lee, C Licciardi, T Lindner, C Lister, RP Litchfield, A Longhin, L Ludovici, M Macaire, L Magaletti, K Mahn, M Malek, S Manly, AD Marino, J Marteau, JF Martin, T Maruyama, J Marzec, EL Mathie, V Matveev, K Mavrokoridis, E Mazzucato, M McCarthy, N McCauley, KS McFarland, C McGrew, C Metelko, M Mezzetto, P Mijakowski, CA Miller, A Minamino, O Mineev, S Mine, A Missert, M Miura, L Monfregola, S Moriyama, Th A Mueller, A Murakami, M Murdoch, S Murphy, J Myslik, T Nagasaki, T Nakadaira, M Nakahata, T Nakai, K Nakamura, S Nakayama, T Nakaya, K Nakayoshi, D Naples, C Nielsen, M Nirkko, K Nishikawa, Y Nishimura, HM O'Keeffe, R Ohta, K Okumura, T Okusawa, W Oryszczak, SM Oser, RA Owen, Y Oyama, V Palladino, V Paolone, D Payne, GF Pearce, O Perevozchikov, JD Perkin, Y Petrov, LJ Pickard, ES Pinzon Guerra, C Pistillo, P Plonski, E Poplawska, B Popov, M Posiadala, J-M Poutissou, R Poutissou, P Przewlocki, B Quilain, E Radicioni, PN Ratoff, M Ravonel, MAM Rayner, A Redij, M Reeves, E Reinherz-Aronis, F Retiere, A Robert, PA Rodrigues, P Rojas, E Rondio, S Roth, A Rubbia, D Ruterbories, R Sacco, K Sakashita, F Sánchez, F Sato, E Scantamburlo, K Scholberg, J Schwehr, M Scott, Y Seiya, T Sekiguchi, H Sekiya, D Sgalaberna, M Shiozawa, S Short, Y Shustrov, P Sinclair, B Smith, RJ Smith, M Smy, JT Sobczyk, H Sobel, M Sorel, L Southwell, P Stamoulis, J Steinmann, B Still, Y Suda, A Suzuki, K Suzuki, SY Suzuki, Y Suzuki, T Szeglowski, R Tacik, M Tada, S Takahashi, A Takeda, Y Takeuchi, HK Tanaka, HA Tanaka, MM Tanaka, D Terhorst, R Terri, LF Thompson, A Thorley, S Tobayama, W Toki, T Tomura, Y Totsuka, C Touramanis, T Tsukamoto, M Tzanov, Y Uchida, K Ueno, A Vacheret, M Vagins, G Vasseur, T Wachala, AV Waldron, CW Walter, D Wark, MO Wascko, A Weber, R Wendell, RJ Wilkes, MJ Wilking, C Wilkinson, Z Williamson, JR Wilson, RJ Wilson, T Wongjirad, Y Yamada, K Yamamoto, C Yanagisawa, S Yen, N Yershov, M Yokoyama, T Yuan, A Zalewska, J Zalipska, L Zambelli, K Zaremba, M Ziembicki, ED Zimmerman, M Zito, J Żmuda

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Measurement of neutrino oscillation parameters from muon neutrino disappearance with an off-axis beam

(2013)

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The electromagnetic calorimeter for the T2K near detector ND280

Journal of Instrumentation 8:10 (2013)

Authors:

D Allan, C Andreopoulos, C Angelsen, GJ Barker, G Barr, S Bentham, I Bertram, S Boyd, K Briggs, RG Calland, J Carroll, SL Cartwright, A Carver, C Chavez, G Christodoulou, J Coleman, P Cooke, G Davies, C Densham, F Di Lodovico, J Dobson, T Duboyski, T Durkin, DL Evans, A Finch, M Fitton, FC Gannaway, A Grant, N Grant, S Grenwood, P Guzowski, D Hadley, M Haigh, PF Harrison, A Hatzikoutelis, TDJ Haycock, A Hyndman, J Ilic, S Ives, AC Kaboth, V Kasey, L Kellet, M Khaleeq, G Kogan, LL Kormos, M Lawe, TB Lawson, C Lister, RP Litchfield, M Lockwood, M Malek, T Maryon, P Masliah, K Mavrokoridis, N McCauley, I Mercer, C Metelko, B Morgan, J Morris, A Muir, M Murdoch, T Nicholls, M Noy, HM O'Keeffe, RA Owen, D Payne, GF Pearce, JD Perkin, E Poplawska, R Preece, W Qian, P Ratoff, T Raufer, M Raymond, M Reeves, D Richards, M Rooney, R Sacco, S Sadler, P Schaack, M Scott, DI Scully, S Short, M Siyad, R Smith, B Still, P Sutcliffe, IJ Taylor, R Terri, LF Thompson, A Thorley, M Thorpe, C Timis, C Touramanis, MA Uchida, Y Uchida, A Vacheret, JF Van Schalkwyk, O Veledar, AV Waldron

Abstract:

The T2K experiment studies oscillations of an off-axis muon neutrino beam between the J-PARC accelerator complex and the Super-Kamiokande detector. Special emphasis is placed on measuring the mixing angle θ 13 by observing νe appearance via the sub-dominant νμ νe oscillation and searching for CP violation in the lepton sector. The experiment includes a sophisticated, off-axis, near detector, the ND280, situated 280 m downstream of the neutrino production target in order to measure the properties of the neutrino beam and to understand better neutrino interactions at the energy scale below a few GeV. The data collected with the ND280 are used to study charged- and neutral-current neutrino interaction rates and kinematics prior to oscillation, in order to reduce uncertainties in the oscillation measurements by the far detector. A key element of the near detector is the ND280 electromagnetic calorimeter (ECal), consisting of active scintillator bars sandwiched between lead sheets and read out with multi-pixel photon counters (MPPCs). The ECal is vital to the reconstruction of neutral particles, and the identification of charged particle species. The ECal surrounds the Pi-0 detector (PØD) and the tracking region of the ND280, and is enclosed in the former UA1/NOMAD dipole magnet. This paper describes the design, construction and assembly of the ECal, as well as the materials from which it is composed. The electronic and data acquisition (DAQ) systems are discussed, and performance of the ECal modules, as deduced from measurements with particle beams, cosmic rays, the calibration system, and T2K data, is described.© 2013 IOP Publishing Ltd and Sissa Medialab srl.

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The Electromagnetic Calorimeter for the T2K Near Detector ND280

(2013)

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David Wark

Sub department

Recent Results from the T2K Experiment

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Abstract:

Observation of Electron Neutrino Appearance in a Muon Neutrino Beam

Authors:

Measurement of neutrino oscillation parameters from muon neutrino disappearance with an off-axis beam

The electromagnetic calorimeter for the T2K near detector ND280

Authors:

Abstract:

The Electromagnetic Calorimeter for the T2K Near Detector ND280

Authors:

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Recent Results from the T2K Experiment

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Abstract:

Observation of Electron Neutrino Appearance in a Muon Neutrino Beam

Authors:

Measurement of neutrino oscillation parameters from muon neutrino disappearance with an off-axis beam

The electromagnetic calorimeter for the T2K near detector ND280

Authors:

Abstract:

The Electromagnetic Calorimeter for the T2K Near Detector ND280

Authors: