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Title: Direct WIMP identification: physics performance of a segmented noble liquid target immersed in a Gd-doped water veto

Abstract

We evaluate background rejection capabilities and physics performance of a detector composed of two diverse elements: a sensitive target (filled with one or two species of liquefied noble gases) and an active veto (made of Gd-doped ultra-pure water). A GEANT4 simulation shows that for a direct WIMP search, this device can reduce the neutron background to O(1) event per year per tonne of material. Our calculation shows that an exposure of one tonne Multiplication-Sign year will suffice to exclude spin-independent WIMP-nucleon cross sections ranging from 10{sup -9} to 10{sup -10} pb.

Authors:
;
Publication Date:
OSTI Identifier:
22156712
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2008; Journal Issue: 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CROSS SECTIONS; DOPED MATERIALS; GADOLINIUM; LIQUIDS; NEUTRONS; NONLUMINOUS MATTER; RARE GASES; SIMULATION; TARGETS; WATER; WEAK INTERACTIONS

Citation Formats

Bueno, A, Carmona, M C, and Melgarejo, A J, E-mail: a.bueno@ugr.es, E-mail: carmencb@ugr.es, E-mail: amelgare@ugr.es. Direct WIMP identification: physics performance of a segmented noble liquid target immersed in a Gd-doped water veto. United States: N. p., 2008. Web. doi:10.1088/1475-7516/2008/08/019.
Bueno, A, Carmona, M C, & Melgarejo, A J, E-mail: a.bueno@ugr.es, E-mail: carmencb@ugr.es, E-mail: amelgare@ugr.es. Direct WIMP identification: physics performance of a segmented noble liquid target immersed in a Gd-doped water veto. United States. https://doi.org/10.1088/1475-7516/2008/08/019
Bueno, A, Carmona, M C, and Melgarejo, A J, E-mail: a.bueno@ugr.es, E-mail: carmencb@ugr.es, E-mail: amelgare@ugr.es. 2008. "Direct WIMP identification: physics performance of a segmented noble liquid target immersed in a Gd-doped water veto". United States. https://doi.org/10.1088/1475-7516/2008/08/019.
@article{osti_22156712,
title = {Direct WIMP identification: physics performance of a segmented noble liquid target immersed in a Gd-doped water veto},
author = {Bueno, A and Carmona, M C and Melgarejo, A J, E-mail: a.bueno@ugr.es, E-mail: carmencb@ugr.es, E-mail: amelgare@ugr.es},
abstractNote = {We evaluate background rejection capabilities and physics performance of a detector composed of two diverse elements: a sensitive target (filled with one or two species of liquefied noble gases) and an active veto (made of Gd-doped ultra-pure water). A GEANT4 simulation shows that for a direct WIMP search, this device can reduce the neutron background to O(1) event per year per tonne of material. Our calculation shows that an exposure of one tonne Multiplication-Sign year will suffice to exclude spin-independent WIMP-nucleon cross sections ranging from 10{sup -9} to 10{sup -10} pb.},
doi = {10.1088/1475-7516/2008/08/019},
url = {https://www.osti.gov/biblio/22156712}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 08,
volume = 2008,
place = {United States},
year = {Fri Aug 15 00:00:00 EDT 2008},
month = {Fri Aug 15 00:00:00 EDT 2008}
}