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Assessing alternatives for directional detection of a halo of weakly interacting massive particles

Copi, Craig J. and Krauss, Lawrence M. and Simmons-Duffin, David and Stroiney, Steven R. (2007) Assessing alternatives for directional detection of a halo of weakly interacting massive particles. Physical Review D, 75 (2). ARt. No. 023514. ISSN 1550-7998. https://resolver.caltech.edu/CaltechAUTHORS:20170817-113427429

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Abstract

The future of direct terrestrial WIMP detection lies on two fronts: new, much larger low background detectors sensitive to energy deposition, and detectors with directional sensitivity. The former can explore a large range of WIMP parameter space using well-tested technology while the latter may be necessary if one is to disentangle particle physics parameters from astrophysical halo parameters. Because directional detectors will be quite difficult to construct it is worthwhile exploring in advance generally which experimental features will yield the greatest benefits at the lowest costs. We examine the sensitivity of directional detectors with varying angular tracking resolution with and without the ability to distinguish forward versus backward recoils, and compare these to the sensitivity of a detector where the track is projected onto a two-dimensional plane. The latter detector regardless of where it is placed on the Earth, can be oriented to produce a significantly better discrimination signal than a 3D detector without this capability, and with sensitivity within a factor of 2 of a full 3D tracking detector. Required event rates to distinguish signals from backgrounds for a simple isothermal halo range from the low teens in the best case to many thousands in the worst.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevD.75.023514DOIArticle
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.75.023514#fulltextPublisherArticle
ORCID:
AuthorORCID
Simmons-Duffin, David0000-0002-2937-9515
Additional Information:© 2007 American Physical Society. Received 30 August 2005; published 12 January 2007.
Issue or Number:2
Classification Code:PACS numbers: 95.35.+d, 95.55.Vj
Record Number:CaltechAUTHORS:20170817-113427429
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170817-113427429
Official Citation:Assessing alternatives for directional detection of a halo of weakly interacting massive particles}, Copi, Craig J. and Krauss, Lawrence M. and Simmons-Duffin, David and Stroiney, Steven R. Phys. Rev. D, volume 75, issue 2, pages 023514 doi:10.1103/PhysRevD.75.023514 https://link.aps.org/doi/10.1103/PhysRevD.75.023514
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80560
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:18 Aug 2017 21:32
Last Modified:03 Oct 2019 18:32

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