Commissioning Run of the CRESST-II Dark Matter Search

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dc.creatorAngloher, G.
dc.creatorBauer, M.
dc.creatorBavykina, I.
dc.creatorBento, A.
dc.creatorBrown, A.
dc.creatorBucci, C.
dc.creatorCiemniak, C.
dc.creatorCoppi, C.
dc.creatorDeuter, G.
dc.creatorvon Feilitzsch, F.
dc.creatorHauff, D.
dc.creatorHenry, S.
dc.creatorHuff, P.
dc.creatorImber, J.
dc.creatorIngleby, S.
dc.creatorIsaila, C.
dc.creatorJochum, J.
dc.creatorKiefer, M.
dc.creatorKimmerle, M.
dc.creatorKraus, H.
dc.creatorLanfranchi, J. -C.
dc.creatorLang, R. F.
dc.creatorMajorovits, B.
dc.creatorMalek, M.
dc.creatorMcGowan, R.
dc.creatorMikhailik, V. B.
dc.creatorPantic, E.
dc.creatorPetricca, F.
dc.creatorPfister, S.
dc.creatorPotzel, W.
dc.creatorProebst, F.
dc.creatorRau, W.
dc.creatorRoth, S.
dc.creatorRottler, K.
dc.creatorSailer, C.
dc.creatorSchaeffner, K.
dc.creatorSchmaler, J.
dc.creatorScholl, S.
dc.creatorSeidel, W.
dc.creatorStodolsky, L.
dc.creatorTolhurst, A. J. B.
dc.creatorUsherov, I.
dc.creatorWestphal, W.
dc.date2008-09-10
dc.date2009-02-16
dc.date.accessioned2026-07-07T13:09:41Z
dc.date.available2026-07-07T13:09:41Z
dc.descriptionThe CRESST cryogenic direct dark matter search at Gran Sasso, searching for WIMPs via nuclear recoil, has been upgraded to CRESST-II by several changes and improvements.We present the results of a commissioning run carried out in 2007. The basic element of CRESST-II is a detector module consisting of a large (~ 300 g) CaWO_4 crystal and a very sensitive smaller (~ 2 g) light detector to detect the scintillation light from the CaWO_4.Information from light-quenching factor studies allows the definition of a region of the energy-light yield plane which corresponds to tungsten recoils. A neutron test is reported which supports the principle of using the light yield to identify the recoiling nucleus. Data obtained with two detector modules for a total exposure of 48 kg-days are presented. Judging by the rate of events in the "all nuclear recoils" acceptance region the apparatus shows a factor ~ten improvement with respect to previous results, which we attribute principally to the presence of the neutron shield. In the "tungsten recoils" acceptance region three events are found, corresponding to a rate of 0.063 per kg-day. Standard assumptions on the dark matter flux, coherent or spin independent interactions,then yield a limit for WIMP-nucleon scattering of 4.8 \times 10^{-7}pb, at M{WIMP} ~50 GeV.
dc.description10 pages, 9 figs No essential changes in content. Minor errors corrected. Sentence added at end of introduction concerning increased sensitivity. Best limit on plots at M=50 GeV. Text labelling of candidate events corrected
dc.identifierhttps://arxiv.org/abs/0809.1829
dc.identifierhttp://arxiv.org/abs/0809.1829
dc.identifierAstroparticle Physics 31, pp. 270-276 (2009)
dc.identifierdoi:10.1016/j.astropartphys.2009.02.007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228817
dc.subjectAstrophysics
dc.titleCommissioning Run of the CRESST-II Dark Matter Search
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