Bulletin of the American Physical Society
APS April Meeting 2014
Volume 59, Number 5
Saturday–Tuesday, April 5–8, 2014; Savannah, Georgia
Session M13: Neutrinos: Experimental Methods |
Hide Abstracts |
Sponsoring Units: GPMFC DPF Room: 101 |
Sunday, April 6, 2014 3:30PM - 3:42PM |
M13.00001: Electron-neutrino charged-current quasi-elastic scattering in MINERvA Jeremy Wolcott The electron-neutrino charged-current quasi-elastic (CCQE) cross-section on nuclei is an important input parameter to appearance-type neutrino oscillation experiments. Current experiments typically work from the muon neutrino CCQE cross-section and apply corrections from theoretical arguments to obtain a prediction for the electron neutrino CCQE cross-section, but to date there has been no precise experimental verification of these estimates at an energy scale appropriate to such experiments. We present the current status of a direct measurement of the electron neutrino CCQE differential cross-section as a function of the squared four-momentum transfer to the nucleus, $Q^{2}$, in MINERvA. This talk will discuss event selection, background constraints, and the flux prediction used in the calculation. [Preview Abstract] |
Sunday, April 6, 2014 3:42PM - 3:54PM |
M13.00002: Cosmic Background in Detection of Low Energy Neutrinos in Liquid Argon Detectors Zepeng Li, Kate Scholberg This talk will describe a study of cosmic background in detection of neutrinos in the few-tens-of-MeV range in liquid argon time-projection chambers detectors at different depths. [Preview Abstract] |
Sunday, April 6, 2014 3:54PM - 4:06PM |
M13.00003: Calibration of the NOvA Far Detector Kanika Sachdev NOvA, currently under construction, is a long-baseline neutrino oscillation experiment that will use the NuMI beam originating at Fermilab. NOvA enables the study of two oscillation channels: $\nu_{\mu}$ disappearance and $\nu_{e}$ appearance and their CP conjugates. It consists of two functionally identical detectors; the Near Detector (ND) at FNAL is 100 m underground and the Far Detector (FD) near International Falls in Northern Minnesota is on the surface. The modular design of the detectors allows us to commission and calibrate sections of the detectors independently of others. The location of the FD on surface facilitates the use of cosmic rays as a tool to calibrate it. This talk will describe the methods used to calibrate the NOvA far detector. [Preview Abstract] |
Sunday, April 6, 2014 4:06PM - 4:18PM |
M13.00004: Liquid Xenon Purity Studies for nEXO Michael Jewell The EXO collaboration is currently searching for neutrinoless double-beta decay using the scintillation and ionization response of a liquid xenon time projection chamber (TPC). To optimize the signal of such a detector, the xenon needs to be kept free of electronegative impurities which could interact with drifting electrons and limit energy resolution. The current 200kg prototype detector, EXO-200, achieves electron lifetimes above 1ms to limit charge attenuation. With the next generation ton scale detector nEXO, more stringent limits will be needed to achieve expected energy resolution. In addition there is a need for real-time monitoring to allow for timely response in the event that xenon purity begins to show signs of degradation. This talk will discuss research and development of new purity monitoring techniques that will directly measure electron lifetime in liquid xenon. The results of this research will have direct applications for nEXO as well as other large noble liquid detectors. [Preview Abstract] |
Sunday, April 6, 2014 4:18PM - 4:30PM |
M13.00005: Development of a Photon Detection System in Liquid Argon for the Long-Baseline Neutrino Experiment Denver Whittington, Brice Adams, Brian Baptista, Brian Baugh, Mark Gebhard, Michael Lang, Stuart Mufson, James Musser, Paul Smith, Jon Urheim The Long-Baseline Neutrino Experiment (LBNE) will be a premier facility for exploring long-standing questions about the boundaries of the standard model. Acting in concert with the liquid argon time projection chambers underpinning the far detector design, the LBNE photon detection system will capture ultraviolet scintillation light in order to provide valuable timing information for event reconstruction. The team at Indiana University is exploring a design based on acrylic waveguides coated with a wavelength-shifting compound, combined with silicon photomultipliers, to collect and record scintillation light from liquid argon. Large-scale tests of this design are being conducted at the ``TallBo'' liquid argon dewar facility at Fermilab, where performance studies with cosmic ray events are helping steer decisions for the final detector design. We present an overview of the design and function of this photon detection system and the latest results from the analysis of data collected during these tests. [Preview Abstract] |
Sunday, April 6, 2014 4:30PM - 4:42PM |
M13.00006: ABSTRACT WITHDRAWN |
Sunday, April 6, 2014 4:42PM - 4:54PM |
M13.00007: Utilizing Neutron Capture on Hydrogen to Measure Theta$_{13}$ at Daya Bay Logan Lebanowski The Daya Bay Reactor Neutrino Experiment has provided the most precise determination of the neutrino mixing angle, $\theta_{13}$. The precision of this determination is crucial for future measurements of CP violation in the lepton sector. Now, Daya Bay is performing a largely independent measurement of $\sin^{2}2\theta_{13}$ utilizing neutron capture on hydrogen. Previous results use six 20-ton Gd-loaded scintillating targets while the new measurement uses six additional 22-ton scintillating targets that are not Gd-loaded. This talk introduces the basic differences between the two determinations, including a discussion of their correlations. This talk also gives an illustration of how the new, statistically-independent measurement of $\sin^{2}2\theta_{13}$ is significantly systematically-independent, and is expected to improve the uncertainty from Daya Bay. [Preview Abstract] |
Sunday, April 6, 2014 4:54PM - 5:06PM |
M13.00008: Fast Neutron Detection with the Double Chooz Time Projection Chamber Marjon Moulai The Double Chooz Time Projection Chamber (DCTPC) is a directional fast neutron detector that measures background neutron production at the Double Chooz reactor-based neutrino oscillation experiment's near (120 mwe) and far (300 mwe) halls. DCTPC will provide data at modest depths, tying near-surface measurements to those from deep underground laboratories. DCTPC will be used to search for a correlation between fast neutron production and rainfall and will provide valuable neutron measurements as a function of depth, direction, and energy. Calibration data will be presented, as well as preliminary findings from operation at Double Chooz. [Preview Abstract] |
Sunday, April 6, 2014 5:06PM - 5:18PM |
M13.00009: Lightguide-based Light Collection System for LArTPCs Alexander Moss This talk will describe progress on establishing a lightguide-based light collection system for LArTPCs, including the LAr1 and LBNE experiments. Recent developments have resulted in over an order of magnitude improvement in these detectors compared to the first published systems. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700