Professor Jocelyn Monroe: Publications

Improved measurement of the head-tail effect in nuclear recoils

Journal of Physics Conference Series 120:Part 4 (2008)

Authors:

D Dujmic, S Ahlen, P Fisher, S Henderson, A Kaboth, G Kohse, R Lanza, M Lewandowska, J Monroe, A Roccaro, G Sciolla, N Skvorodnev, H Tomita, R Vanderspek, H Wellenstein, R Yamamoto

Abstract:

We present new results with a prototype detector that is being developed by the DMTPC collaboration for the measurement of the direction tag (head-tail) of dark matter wind. We use neutrons from a ²⁵²Cf source to create low-momentum nuclear recoils in elastic scattering with the residual gas nuclei. The recoil track is imaged in low-pressure time-projection chamber with optical readout. We measure the ionization rate along the recoil trajectory, which allows us to determine the direction tag of the incoming neutrons.

Neutrino backgrounds to dark matter searches

Physical Review D Particles Fields Gravitation and Cosmology 76:3 (2007)

Authors:

J Monroe, P Fisher

Abstract:

Neutrino coherent scattering cross sections can be as large as 10-39cm2, while current dark matter experiments have sensitivities to WIMP coherent scattering cross sections 5 orders of magnitude smaller; future experiments plan to have sensitivities to cross sections as small as 10-48cm2. With large target masses and few keV recoil energy detection thresholds, neutral current coherent scattering of solar neutrinos becomes an irreducible background in dark matter searches. In the current zero-background analysis paradigm, neutrino coherent scattering will limit the achievable sensitivity to dark matter scattering cross sections, at the level of 10-46cm2. © 2007 The American Physical Society.

Neutrino Backgrounds to Dark Matter Searches

ArXiv 0706.3019 (2007)

Authors:

Jocelyn Monroe, Peter Fisher

Search for Electron Neutrino Appearance at the Δm2∼1 eV2 Scale

Physical Review Letters American Physical Society (APS) 98:23 (2007) 231801

Authors:

AA Aguilar-Arevalo, AO Bazarko, SJ Brice, BC Brown, L Bugel, J Cao, L Coney, JM Conrad, DC Cox, A Curioni, Z Djurcic, DA Finley, BT Fleming, R Ford, FG Garcia, GT Garvey, C Green, JA Green, TL Hart, E Hawker, R Imlay, RA Johnson, P Kasper, T Katori, T Kobilarcik, I Kourbanis, S Koutsoliotas, EM Laird, JM Link, Y Liu, Y Liu, WC Louis, KBM Mahn, W Marsh, PS Martin, G McGregor, W Metcalf, PD Meyers, F Mills, GB Mills, J Monroe, CD Moore, RH Nelson, P Nienaber, S Ouedraogo, RB Patterson, D Perevalov, CC Polly, E Prebys, JL Raaf, H Ray, BP Roe, AD Russell, V Sandberg, R Schirato, D Schmitz, MH Shaevitz, FC Shoemaker, D Smith, M Sorel, P Spentzouris, I Stancu, RJ Stefanski, M Sung, HA Tanaka, R Tayloe, M Tzanov, R Van de Water, MO Wascko, DH White, MJ Wilking, HJ Yang, GP Zeller, ED Zimmerman

Charged current quasi-elastic interactions at MiniBooNE confront cross section Monte Carlos

Nuclear Physics B Proceedings Supplements 139:1-3 SPEC. ISS. (2005) 59-65

Abstract:

Neutrino oscillations have been established in solar and atmospheric neutrinos, but a third signal from the LSND experiment is incompatible with three Standard Model neutrinos. The MiniBooNE experiment can confirm or refute the LSND oscillation signal with 1 × 10²¹ protons on target. While working towards the oscillation result, MiniBooNE will accumulate more than 1 × 10⁶ neutrino interactions in the 0 to 2 GeV range which will greatly increase the world's knowledge of neutrino cross sections in this energy regime. Preliminary results on the MiniBooNE νμ charged current quasi-elastic analysis are presented and compared to the NUANCE, NEUT, and NEUGEN cross section Monte Carlos. © 2004 Published by Elsevier B.V.

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