Professor Jocelyn Monroe: Publications

Dual baseline search for muon neutrino disappearance at 0.5eV2<Δm2<40eV2

Physical Review D - Particles, Fields, Gravitation and Cosmology 85:3 (2012)

Authors:

KBM Mahn, Y Nakajima, AA Aguilar-Arevalo, JL Alcaraz-Aunion, CE Anderson, AO Bazarko, SJ Brice, BC Brown, L Bugel, J Cao, J Catala-Perez, G Cheng, L Coney, JM Conrad, DC Cox, A Curioni, R Dharmapalan, Z Djurcic, U Dore, DA Finley, BT Fleming, R Ford, AJ Franke, FG Garcia, GT Garvey, C Giganti, JJ Gomez-Cadenas, J Grange, C Green, JA Green, P Guzowski, A Hanson, TL Hart, E Hawker, Y Hayato, K Hiraide, W Huelsnitz, R Imlay, RA Johnson, BJP Jones, G Jover-Manas, G Karagiorgi, P Kasper, T Katori, YK Kobayashi, T Kobilarcik, I Kourbanis, S Koutsoliotas, H Kubo, Y Kurimoto, EM Laird, SK Linden, JM Link, Y Liu, Y Liu, WC Louis, PF Loverre, L Ludovici, C Mariani, W Marsh, S Masuike, K Matsuoka, C Mauger, VT McGary, G McGregor, W Metcalf, PD Meyers, F Mills, GB Mills, G Mitsuka, Y Miyachi, S Mizugashira, J Monroe, CD Moore, J Mousseau, T Nakaya, R Napora, RH Nelson, P Nienaber, JA Nowak, D Orme, B Osmanov, M Otani, S Ouedraogo, RB Patterson, Z Pavlovic, D Perevalov, CC Polly, E Prebys, JL Raaf, H Ray, BP Roe, AD Russell, F Sanchez, V Sandberg, R Schirato, D Schmitz, MH Shaevitz, TA Shibata, FC Shoemaker

Abstract:

The SciBooNE and MiniBooNE collaborations report the results of a ν μ disappearance search in the Δm2 region of 0.5-40eV2. The neutrino rate as measured by the SciBooNE tracking detectors is used to constrain the rate at the MiniBooNE Cherenkov detector in the first joint analysis of data from both collaborations. Two separate analyses of the combined data samples set 90% confidence level (CL) limits on ν μ disappearance in the 0.5-40eV2 Δm2 region, with an improvement over previous experimental constraints between 10 and 30eV2. © 2012 American Physical Society.

Recent progress from the MiniCLEAN dark matter experiment

Journal of Physics Conference Series 375:PART 2 (2012)

Abstract:

The MiniCLEAN dark matter direct detection experiment is a single-phase liquid argon detector, instrumented with photomultiplier tubes to observe scintillation light from a 150kg fiducial mass. This detector design strategy emphasizes scalability to target masses of order 10 tons or more. The projected light yield is 6 photo-electrons per keV, which allows pulse shape discrimination to separate the electron background from a WIMP-induced nuclear recoil signal. MiniCLEAN is also designed for a liquid neon target which, in the event of a positive signal in argon, will enable an independent verification of backgrounds and provide a unique test of the expected A² dependence of the WIMP interaction rate. This talk will review the experimental technique and current status of MiniCLEAN.

Rejection of Electronic Recoils with the DMTPC Dark Matter Search

Physics Procedia 37 (2012) 575-582

Authors:

JP Lopez, S Ahlen, J Battat, T Caldwell, M Chernicoff, C Deaconu, D Dujmic, A Dushkin, W Fedus, P Fisher, F Golub, S Henderson, A Inglis, A Kaboth, G Kohse, L Kirsch, R Lanza, A Lee, J Monroe, H Ouyang, T Sahin, G Sciolla, N Skvorodnev, H Tomita, H Wellenstein, I Wolfe, R Yamamoto, H Yegoryan

Abstract:

The Dark Matter Time Projection Chamber (DMTPC) collaboration is developing a low-pressure gas TPC for detecting WIMP-nucleon interactions. DMTPC detectors use optical readout with CCD cameras to search for the daily modulation of the directional signal of the dark matter wind. An analysis of several charge readout channels has been developed to obtain additional information about ionization events in the detector. In order to reach sensitivities required for the WIMP detection, the detector needs to minimize backgrounds from electron recoils. This article shows that by using the readout of charge signals in addition to CCD readout, a preliminary statistics-limited 90% C.L. upper limit on the γ and e^- rejection factor of 5.6 × 10^-6 is obtained for energies between 40 keVee and 200 keVee.

Calibration of muon reconstruction algorithms using an external muon tracking system at the Sudbury Neutrino Observatory

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 648:1 (2011) 92-99

Authors:

TJ Sonley, R Abruzzio, YD Chan, CA Currat, FA Duncan, J Farine, RJ Ford, JA Formaggio, N Gagnon, AL Hallin, J Heise, MA Howe, E Ilhoff, J Kelsey, JR Klein, C Kraus, A Krüger, T Kutter, CCM Kyba, IT Lawson, KT Lesko, N McCauley, B Monreal, J Monroe, AJ Noble, RA Ott, AWP Poon, G Prior, K Rielage, T Tsui, B Wall, JF Wilkerson

Full simulation of the Sudbury Neutrino Observatory proportional counters

New Journal of Physics IOP Publishing 13:7 (2011) 073006-073006

Authors:

B Beltran, H Bichsel, B Cai, GA Cox, H Deng, J Detwiler, JA Formaggio, S Habib, AL Hallin, A Hime, M Huang, C Kraus, HR Leslie, JC Loach, R Martin, S McGee, ML Miller, B Monreal, J Monroe, NS Oblath, SJM Peeters, AWP Poon, G Prior, K Rielage, RGH Robertson, MWE Smith, LC Stonehill, N Tolich, T Van Wechel, H Wan Chan Tseung, J Wendland, JF Wilkerson, A Wright

Abstract:

The third phase of the Sudbury Neutrino Observatory (SNO) experiment added an array of 3He proportional counters to the detector. The purpose of this Neutral Current Detection (NCD) array was to observe neutrons resulting from neutral-current solar neutrino-deuteron interactions. We have developed a detailed simulation of the current pulses from the NCD array proportional counters, from the primary neutron capture on 3He through the NCD array signal-processing electronics. This NCD array Monte Carlo simulation was used to model the alpha-decay background in SNO's third-phase 8B solar-neutrino measurement.Comment: 38 pages; submitted to the New Journal of Physic

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