Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression
We present first significant limits on WIMP dark matter by the phonon-light technique, where combined phonon and light signals from a scintillating cryogenic detector are used. Data from early 2004 with two 300 g CRESST-II prototype detector modules are presented, with a net exposure of 20.5 kg days...
| Päätekijät: | , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Aineistotyyppi: | Journal article |
| Kieli: | English |
| Julkaistu: |
2005
|
| _version_ | 1826282174562697216 |
|---|---|
| author | Angloher, G Bucci, C Christ, P Cozzini, C von Feilitzsch, F Hauff, D Henry, S Jagemann, T Jochum, J Kraus, H Majorovits, B Ninkovic, J Petricca, F Potzel, W Probst, F Ramachers, Y Razeti, M Rau, W Seidel, W Stark, M Stodolsky, L Tolhurst, A Westphal, W Wulandari, H |
| author_facet | Angloher, G Bucci, C Christ, P Cozzini, C von Feilitzsch, F Hauff, D Henry, S Jagemann, T Jochum, J Kraus, H Majorovits, B Ninkovic, J Petricca, F Potzel, W Probst, F Ramachers, Y Razeti, M Rau, W Seidel, W Stark, M Stodolsky, L Tolhurst, A Westphal, W Wulandari, H |
| author_sort | Angloher, G |
| collection | OXFORD |
| description | We present first significant limits on WIMP dark matter by the phonon-light technique, where combined phonon and light signals from a scintillating cryogenic detector are used. Data from early 2004 with two 300 g CRESST-II prototype detector modules are presented, with a net exposure of 20.5 kg days. The modules consist of a CaWO4 scintillating "target" crystal and a smaller cryogenic light detector. The combination of phonon and light signals leads to a strong suppression of non-nuclear recoil backgrounds. Using this information to define an acceptance region for nuclear recoils we have 16 events from the two modules, corresponding to a rate for nuclear recoils between 12 and 40 keV of (0.87 ± 0.22) events/(kg day). This is compatible with the rate expected from neutron background, and most of these events lie in the region of the phonon-light plane anticipated for neutron-induced recoils. A particularly strong limit for WIMPs with coherent scattering results from selecting a region of the phonon-light plane corresponding to tungsten recoils, where the best module shows zero events. © 2005 Elsevier B.V. All rights reserved. |
| first_indexed | 2024-03-07T00:39:51Z |
| format | Journal article |
| id | oxford-uuid:82ad4e3d-0811-4283-8da5-01c4f8ce4908 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:39:51Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:82ad4e3d-0811-4283-8da5-01c4f8ce49082022-03-26T21:38:59ZLimits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppressionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:82ad4e3d-0811-4283-8da5-01c4f8ce4908EnglishSymplectic Elements at Oxford2005Angloher, GBucci, CChrist, PCozzini, Cvon Feilitzsch, FHauff, DHenry, SJagemann, TJochum, JKraus, HMajorovits, BNinkovic, JPetricca, FPotzel, WProbst, FRamachers, YRazeti, MRau, WSeidel, WStark, MStodolsky, LTolhurst, AWestphal, WWulandari, HWe present first significant limits on WIMP dark matter by the phonon-light technique, where combined phonon and light signals from a scintillating cryogenic detector are used. Data from early 2004 with two 300 g CRESST-II prototype detector modules are presented, with a net exposure of 20.5 kg days. The modules consist of a CaWO4 scintillating "target" crystal and a smaller cryogenic light detector. The combination of phonon and light signals leads to a strong suppression of non-nuclear recoil backgrounds. Using this information to define an acceptance region for nuclear recoils we have 16 events from the two modules, corresponding to a rate for nuclear recoils between 12 and 40 keV of (0.87 ± 0.22) events/(kg day). This is compatible with the rate expected from neutron background, and most of these events lie in the region of the phonon-light plane anticipated for neutron-induced recoils. A particularly strong limit for WIMPs with coherent scattering results from selecting a region of the phonon-light plane corresponding to tungsten recoils, where the best module shows zero events. © 2005 Elsevier B.V. All rights reserved. |
| spellingShingle | Angloher, G Bucci, C Christ, P Cozzini, C von Feilitzsch, F Hauff, D Henry, S Jagemann, T Jochum, J Kraus, H Majorovits, B Ninkovic, J Petricca, F Potzel, W Probst, F Ramachers, Y Razeti, M Rau, W Seidel, W Stark, M Stodolsky, L Tolhurst, A Westphal, W Wulandari, H Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression |
| title | Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression |
| title_full | Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression |
| title_fullStr | Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression |
| title_full_unstemmed | Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression |
| title_short | Limits on WIMP dark matter using scintillating CaWO4 cryogenic detectors with active background suppression |
| title_sort | limits on wimp dark matter using scintillating cawo4 cryogenic detectors with active background suppression |
| work_keys_str_mv | AT angloherg limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT buccic limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT christp limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT cozzinic limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT vonfeilitzschf limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT hauffd limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT henrys limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT jagemannt limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT jochumj limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT kraush limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT majorovitsb limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT ninkovicj limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT petriccaf limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT potzelw limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT probstf limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT ramachersy limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT razetim limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT rauw limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT seidelw limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT starkm limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT stodolskyl limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT tolhursta limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT westphalw limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression AT wulandarih limitsonwimpdarkmatterusingscintillatingcawo4cryogenicdetectorswithactivebackgroundsuppression |