First results from a Dark Matter search with liquid Argon at 87 K in the Gran Sasso Underground Laboratory

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dc.creatorBenetti, P.
dc.creatorAcciarri, R.
dc.creatorAdamo, F.
dc.creatorBaibussinov, B.
dc.creatorBaldo-Ceolin, M.
dc.creatorBelluco, M.
dc.creatorCalaprice, F.
dc.creatorCalligarich, E.
dc.creatorCambiaghi, M.
dc.creatorCarbonara, F.
dc.creatorCavanna, F.
dc.creatorCentro, S.
dc.creatorCocco, A. G.
dc.creatorDi Pompeo, F.
dc.creatorFerrari, N.
dc.creatorFiorillo, G.
dc.creatorGalbiati, C.
dc.creatorGallo, V.
dc.creatorGrandi, L.
dc.creatorIanni, A.
dc.creatorMangano, G.
dc.creatorMeng, G.
dc.creatorMontanari, C.
dc.creatorPalamara, O.
dc.creatorPandola, L.
dc.creatorPietropaolo, F.
dc.creatorRaselli, G. L.
dc.creatorRossella, M.
dc.creatorRubbia, C.
dc.creatorSzelc, A. M.
dc.creatorVentura, S.
dc.creatorVignoli, C.
dc.date2007-01-10
dc.date2007-01-16
dc.date.accessioned2026-07-07T11:20:57Z
dc.date.available2026-07-07T11:20:57Z
dc.descriptionA new method of searching for dark matter in the form of weakly interacting massive particles (WIMP) has been developed with the direct detection of the low energy nuclear recoils observed in a massive target (ultimately many tons) of ultra pure Liquid Argon at 87 K. A high selectivity for Argon recoils is achieved by the simultaneous observation of both the VUV scintillation luminescence and of the electron signal surviving columnar recombination, extracted through the liquid-gas boundary by an electric field. First physics results from this method are reported, based on a small 2.3 litre test chamber filled with natural Argon and an accumulated fiducial exposure of about 100 kg x day, supporting the future validity of this method with isotopically purified 40Ar and for a much larger unit presently under construction with correspondingly increased sensitivities.
dc.description26 pages, 8 figures, submitted to astroparticle physics
dc.identifierhttps://arxiv.org/abs/astro-ph/0701286
dc.identifierhttp://arxiv.org/abs/astro-ph/0701286
dc.identifierAstropart.Phys.28:495-507,2008
dc.identifierdoi:10.1016/j.astropartphys.2007.08.002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194122
dc.subjectAstrophysics
dc.titleFirst results from a Dark Matter search with liquid Argon at 87 K in the Gran Sasso Underground Laboratory
dc.typetext

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