Looking for WIMPs with EDELWEISS. Results and status of EDW I Prospects for EDW II + DAMA /LIBRA: brief status/future
|
|
- Lynette Lawrence
- 5 years ago
- Views:
Transcription
1 Looking for WIMPs with EDELWEISS Results and status of EDW I Prospects for EDW II + DAMA /LIBRA: brief status/future G. Gerbier CEA/Saclay/DAPNIA G. Gerbier NESS
2 The Edelweiss Collaboration CEA- Saclay DAPNIA: G. Chardin, H. Deschamps, G. Gerbier, M. Gros, S. Hervé, A. de Lesquen, M. Loidl, J. Mallet,L. Mosca, X. F. Navick, F. Nizery, L. Shoeffel CEA- Saclay DRECAM: M. Chapellier, P. Pari CRTBT Grenoble: A. Benoit, M. Caussignac, H. Rodenas CSNSM Orsay: L. Bergé, A. Broniatowski, L. Dumoulin, A.Juillard, S. Marnieros, N. Mirabolfathi, S. Collin IAP Paris: C. Goldbach, M. Martin, G. Nollez IPN Lyon:A. Bonnevaux, B. Chambon, L. Chabert, M. De Jesus,P. Di Stefano, D. Drain, J. Gascon, E. Gerlic, M. Goyot, J. P.Hadjout, O. Martineau, V. Sanglard, M. Stern,L. Vagneron Laboratoire Souterrain de Modane:P. Charvin (1/2), C. Riccio (1/4) (out of 4 technicians / 1 secretary in Modane) Tech Univ Munich : J. Jochum, H. Wulandari EDELWEISS : Expérience pour DEtecter Les Wimps En ISte Souterrain TECNomSiQ: Team Edelweiss Cresst for Neutron and m Shield Qualification G. Gerbier NESS
3 Fréjus Lab (LSM) Fréjus Underground Laboratory NB : 3300 m 3 ITALIE FRANCE TUNNEL ROUTIER DU FREJUS GRAND HALL NEMO III 3, 2 T EDELWEISS I et II 4800 m water eq. Muon flux 4 m/m 2 /day Neutron flux s -1 cm -2 ( from rock radioactivity) G. Gerbier NESS
4 EDELWEISS-I, 1kg stage Archeological lead 320 g Ge detectors G. Gerbier NESS
5 1kg stage of EDELWEISS-I : 3*320 g Ge. GGA1: heat and ionisation Ge 320 gram detectord, 20 mm thick aluminium electrodes (center + guard ring) + Ge amorphous layer (made by Canberra/Eurysis Eurysis) NTD sensor on guard ring electrode +wiring in Saclay Low radioactivity cryostat Shield: : 30 cm paraffin,, 20 cm Pb,, 10 cm Cu 10 kev (resp 122) kev: ionisation : 1.3 kev (2.2 kev) heat : 1.0 kev (3.0 kev) G. Gerbier NESS
6 57 Co calibration. Charge collection Detector with amorphous Ge surface treatment Few miscollected surface events % background rejection ( 60 Co) Other detectors no amorphous layer More miscollected events background rejection ( 60 Co) G. Gerbier NESS
7 Gamma rejection neutron calibration n/g discrimination 99.9% for Er >15 kev 73 Ge(n,n g) Recoil threshold 20 kev Ionization threshold 3.7 kev Q= G. Gerbier NESS
8 54 days fl 15.1 kg.day net fl 8.6 kg.day fl 7.74 kg.day fl 7.4 kg.day EDELWEISS-I : 2002 data from GGA1 detector 12% dead time 54 % fiducial Volume 90%nuclear recoil acceptance Upper recoil energy limit 95 % efficiency (ex : 119 kev recoil M W =10 TeV) G. Gerbier NESS
9 The result of perseverance evts/kg.d in nucl recoil zone evts/kg.d 2002 <0.3 evts/kg.d G. Gerbier NESS
10 EDELWEISS-I 05/2002 Present sensitivity for spin independent WIMPs Same model, astrophysic and nuclear parameters as DAMA and CDMS M W = 52 GeV, s = 7.2x10-6 pb : fi Prediction = 9.8 evts, P(0) = 0.006% M W = 44 GeV, s = 5.4x10-6 pb : fi Prediction = 6.2 evts, P(0) = 0.2% Exploration of first sample of SUSY models compatible with accelerator constraints. ficurrently accumulating data with 2 GGA fitest and data taking with 2 GSA up to 03/2003 G. Gerbier NESS
11 from EDELWEISS I 1kg Copper Detection volume 50l 20 cm lead shielding 10 layers of 12 detectors of 320 g 3 detectors of 320 g to EDELWEISS II 6kg, 36 kg He tank G. Gerbier NESS
12 EDELWEISS-II detector setup (Phase 21*320g detectors : approved, 2004) Reversed cryostat for up to 120 detectors : 36 kg Ge Shield : 20 cm Pb + 50 cm PE Improve sensitivity by fact 100 => down to pb Start installation in march 2003 G. Gerbier NESS
13 Backgrounds Physical : localised in recoil zone : neutrons 1. Radioactivity from rock 2. Radioactivity from inside (U fission) 3. m interactions in shield 4. m interactions in rock Instrumental : not localised but «fall» in recoil zone g spill over (resolution) Ge 68 Surface events Incomplete charge collection Unexpected/unknow Protections 1. Outside : paraffin shield 2. Inside (fission) : PE shied or segmentation (multiple) 3. m VETO 4. m VETO Identification : multiple Protections Clean detectors (RA, radon, dust ) Surface event identification : ballistic phonon identification with thin films G. Gerbier NESS
14 1) a n and fission in rock : calculations done by H. Wulandari at TUM (using MCNP) within TECNomSiQ -Due to U/Th in rock/concrete- LNGS Hall A B C Activities (ppm) 238 U Th FLUX in the LNGS Lab (10-6 n/cm 2 /s): MeV MeV 5-10 MeV Hall A, 8% water Hall A, 16% water Hall C, 8% water Belli et al ± ± ± 0.01 Concrete composition of rock/concrete Calculation of neutron yield Neutrons from (a,n): Hall A rock: 4.38 n/y/g rock Hall C rock: 0.39 n/y/g rock Conc. (8% water): 0.50 n/y/g conc. E > 1 MeV neutrons come from : 7 cm concrete 13 cm rock Concrete thickness: 40 cm (up to 1m in some places in LNGS) CONCRETE MORE IMPORTANT!! and neutron spectrum G. Gerbier NESS
15 a n and fission : the case of LSM (Fréjus lab) Rock Concrete Frac Fission/Tot Rate n/g/y Fission a n (updated data on Ca 05/2002) Total % to 60 % Flux /cm2/sec > 1 MeV calculation Fission 2.2E E-07 a n 6.1E E-07 Total 8.3E E % to 50 % Flux /cm2/sec > 1 MeV measured 1.60E-06 - slightly higher rates and flux than LNGS NB : TECNomSiQ= Team Edelweiss Cresst for Neutron and m Shield Qualification G. Gerbier NESS
16 3) neutron flux from cosmic-ray muons +V.A. Kudryavtsev results (University of Sheffield) Tests of the FLUKA, MCNP, MUSIC, GEANT 3/4 simulation codes Characteristics to investigate and compare to existing measurements Neutron production rate as a function of muon energy (depth); Neutron production rate as a function of atomic weight of material; Neutron energy spectrum; Neutron flux as a function of distance from muon track. Comparison with experimental data => Tools exist, must be fine tuned for real DM experiments G. Gerbier NESS
17 Neutron production as a function of m energy experiments in scintillator/lead LSD ASD LVD /m/g/cm 2 Palo Verde /m/g/cm 2 Parametrisation in scintillator Nn = 4.14 E m /m/g/cm 2 Wang et al. Phys Rev D 64 (2001) Bergamasco et al, 73 Nn = 3.2 E m /m/g/cm 2 VK (IDM 2002) G. Gerbier NESS
18 A dependance of neutron production Simulation VK For Em= 280 GeV Nn = 5.3 A /m/g/cm 2 Parametrisation VK IDM 2002 G. Gerbier NESS
19 Note big difference in shape below 8 MeV Exp spectrum depends on shield set up Preliminary simulations of neutron production in Pb with GEANT 3 modified by KARMEN (Lyon) dn/de Neutron energy spectrum from muons in thick Pb slab cm Primary and outgoing neutron spectra GEANT 3 98 % Outgoing neutrons 98 % Primary neutrons Energy (MeV) G. Gerbier NESS
20 1000 4) transformation by EDW2 shield of HE neutrons m rock in LE neutrons at detector level Neutron energy spectrum in lab from muons in rock + contribution to flux in 1-10 MeV window at detector level Dementyev spectrum Flux /cm /sec/mev * Neutrons contributing to flux at detector level e -d/0.9m Energy (MeV) G. Gerbier NESS
21 Résumé : neutron spectra at EDWII detectors 1.00E E E-06 Neutron energy spectra at detector for the 4 sources arbitrary normalisation RA rock Fission U in lead Mu rock Mu lead 1.00E E E E neutron MeV => Similar shapes e -(E/0.7) for E<5 MeV, except for rock RA-steeper G. Gerbier NESS
22 Summary of neutron background flux estimations at EDELWEISS II detector Background source Radioactivity from Rock U fission in Pb of shield assuming 0.1 ppb Neutrons from muons in Pb shield Neutrons from muons in rock Predicted flux at detector after shield E > 1 MeV n/cm_/sec 1 < n /cm_/sec < n /cm_/sec n /cm_/sec 4 Predicted flux at detector after shield E > 0.5 MeV n /cm_/sec < n /cm_/sec n /cm_/sec n /cm_/sec m VETO e = 95 % will reduce this too G. Gerbier NESS
23 EDELWEISS II m Veto 38.4 kg Ge 4 m Karlsruhe/KARMEN group joins EDELWEISS and provides the m VETO =140 m 2 plastic scintillator G. Gerbier NESS
24 Instrumental background Example of GeAl9 => incomplete charge collection «flat» distribution in Q vs E plane at Q<0.5 fithe 3 evts of GGA1 at Q <0.5 could be same origin at lower rate or physical origin (1 neutron, 1 recoil, 1 surface event) G. Gerbier NESS
25 Edelweiss II 100 detectors exercice : 6 months live = 3000 kg.d exposure 80 GeV WIMP, pb Expected neutrons «Flat» background reduced by fact 10/GGA1 95 % accept 80 GeV WIMP G. Gerbier NESS
26 g s 241Am (60Kev,18kev,14kev) Surface event rejection Ballistic phonon detection with Nb Si thin layers Ge bolometer (35g) (heat & ionization) E=1.5 Volt/cm Thermometer A Thermometer B A/B amplitude ratio Charge deficit for A/B>2.5 (near surface events) Charge deficite Amplitude ratio (UP/DOWN) Full charge collection for A/B<2.5 (bulk events) Ionization(kev) (kev) G. Gerbier NESS Counts Counts Raw energy spectrum Spectrum cleared from near surface events (A/B<2.5) Histogram of Ionization before and after rejection Before After Ionization(kev) Ionization (kev) 80 Allows to reject surface events down to the energy threshold 100
27 This is a real thing September 2002 : dilution OK Wiring and cold electronic test : end 2002 Mounting in LSM : 03/ /2004 Data taking with 6 kg : mid 2004 G. Gerbier NESS
28 Wimp search goals NB : 0 evt/10 kgd NB : 0 evt/30 kg/60d EDW2 NB : 0 evt/1ton/200d 1 Ton G. Gerbier NESS
29 Costs Edelweiss program (no labor costs) From EDELWEISS I to EDELWEISS II-6 kg : 3.8 M Additional cost to go to 36 kgs : 2.8 M Infrastructure (LSM) 0.2 M /y 0.1 to 1 ton experiment Cryogenic? G. Gerbier NESS
30 hep-ph/ December 2001 DAMA astro-ph/ May 2002 G. Gerbier NESS
31 From DAMA to LIBRA G. Gerbier NESS
32 Towards next step : 1 ton detector(s) in Europe - CRESST-II, EDELWEISS-II, ZEPLIN-II are test stages of the kg level - should test approx picobarn sensitivity range - sampling the picobarn range is beyond our present detector knowledge Requires in any case experiments at the ton scale, one or two at European scale - CRESST, EDELWEISS and KARMEN starting to assemble a collaboration and common working groups to design this ambitious experiment EU is initiating ApPEC (Astroparticle Physics European Coordination). => (CRESST, EDELWEISS, Karlsruhe) +, ZEPLIN will most probably present a common bid to EU for common R&D, networking and design studies => goal: make a common design study for neutron background studies and protection, avoid to duplicate efforts, define the best two lines of research for discriminating experiments (most probably cryogenic detectors and Xenon at the one-ton scale) assuming no definitive systematic background or limitations appears at the kg stage G. Gerbier NESS
Neutron background studies for
Neutron background studies for Edelweiss programs Introducing ETNomSiQ working group - Past measurements - Monte Carlo studies - Program of measurements and protections for EDELW II G. Gerbier CEA/Saclay,
More informationDirekte Suche nach Dark Matter
Direkte Suche nach Dark Matter WIMP über elastische Streuung an Kernen HDMS Ge 10% energy Ionization Ge, Si Edelweiss, CDMS liquid Xe Zeplin-2, US-Xenon NaI, liqu.xe Target Light 1% energy fastest no surface
More informationEdelweiss-II : status and first results A new generation of background-free bolometers for WIMP search
Edelweiss-II : status and first results A new generation of background-free bolometers for WIMP search From EDWI to EDW II New ID detectors Some current results Outlook G. Gerbier CEA Saclay, IRFU, France
More informationarxiv:astro-ph/ v1 24 Jun 2004
LATEST RESULTS OF THE EDELWEISS EXPERIMENT arxiv:astro-ph/46537v 24 Jun 24 V. SANGLARD for the Edelweiss collaboration Institut de Physique Nucléaire de Lyon, 4 rue Enrico Fermi, 69622 Villeurbanne, France
More informationLatest results of EDELWEISS II
Latest results of EDELWEISS II Ana Torrentó CEA/IRFU/SPP Saclay Rencontres de Moriond 2011 «EW and Unified Theories» WIMP search Motivated by the «WIMP miracle» Very small rate of WIMPnucleus scattering
More informationCryogenic Dark Matter Search in Europe
Cryogenic Dark Matter Search in Europe Wolfgang Rau Queen s University Kingston, Canada Introduction W. Rau 2 Search for nuclear recoils (NR) from WIMP interactions. Background mostly electron recoils
More informationThe EDELWEISS DM search Phase II to Phase III
The EDELWEISS DM search Phase II to Phase III Adam Cox Karlsruhe Institute for Technology (KIT) on behalf of the EDELWEISS Collaboration CEA, Saclay (IRFU and IRAMIS) IPNL (CNRS/IN2P3 and Université de
More informationStatus of the EDELWEISS Dark Matter search
Status of the EDELWEISS Dark Matter search KIT Institute Centre for Particle Nuclear and Physics Astroparticle Physics KIT University of the State of Baden-Wuerttemberg and National Research Center of
More informationNEUTRON BACKGROUND STUDIES FOR THE EDELWEISS WIMP SEARCH
NEUTRON BACKGROUND STUDIES FOR THE EDELWEISS WIMP SEARCH G. CHARDIN AND G. GERBIER FOR THE EDELWEISS COLLABORATION DSM/DAPNIA/SPP, CEA/Saclay. F-91191 Gif-sur-Yvette Cedex, France E-mail: gabriel.chardin@cea.fr
More informationSTATUS OF THE EDELWEISS EXPERIMENT
Ó³ Ÿ. 2001. º3[106] Particles and Nuclei, Letters. 2001. No.3[106] Š 539.12 STATUS OF THE EDELWEISS EXPERIMENT M.Stern Institut de Physique Nucleaire de Lyon and Universite Claude Bernard, Lyon-1, IN2P3-CNRS,
More informationNeutron background in underground particle astrophysics experiments
Neutron background in underground particle astrophysics experiments V. A. Kudryavtsev Department of Physics and Astronomy University of Sheffield for ILIAS and the UK Dark Matter Collaboration LRT2006-01/10/2006
More informationLow energy neutron propagation in MCNPX and GEANT4
Low energy neutron propagation in and R. Lemrani a M. Robinson b V. A. Kudryavtsev b M. De Jesus c G. Gerbier a N. J. C. Spooner b arxiv:hep-ex/06030 v1 17 Jan 2006 a DAPNIA-SPP, CEA-Saclay, Gif-Sur-Yvette,
More informationCryogenic Detectors Direct Dark Matter Search. Dark Matter
Cryogenic Detectors Direct Search Matter in the Universe - Composition ν too light => most of the is cold Ωmat = 0.27 0.04 u d of so far unknown weakly interacting, massive particles WIMPs normal baryonic
More informationarxiv:astro-ph/ v3 26 May 2005
LYCEN 25-5 Final results of the EDELWEISS-I dark matter search with cryogenic heat-and-ionization Ge detectors V. Sanglard,, A. Benoit, 2 L. Bergé, 3 J. Blümer, 4,5 A. Broniatowski, 3 B. Censier, 3 arxiv:astro-ph/53265v3
More informationTechnical Specifications and Requirements on Direct detection for Dark Matter Searches
Technical Specifications and Requirements on Direct detection for Dark Matter Searches Jin Li THU/IHEP Symposium of the Sino-German GDT Cooperation 04/08/2013 Tübingen Outline Introduction Direct detection
More informationCalibration of the EDELWEISS Cryogenic Heat-and-ionisation Germanium Detectors for Dark Matter Search
LYCEN 23-36 October 15th, 23 arxiv:astro-ph/31657v1 22 Oct 23 Calibration of the EDELWEISS Cryogenic Heat-and-ionisation Germanium Detectors for Dark Matter Search The EDELWEISS Collaboration: O. Martineau
More informationIdentification of backgrounds in the EDELWEISS-I dark matter search experiment
Identification of backgrounds in the EDELWEISS-I dark matter search experiment S. Fiorucci, Alain Benoit, L. Berge, J. Blumer, A. Broniatowski, B. Censier, A. Chantelauze, M. Chapellier, G. Chardin, S.
More informationBackground simulations and shielding calculations
Background simulations and shielding calculations Vitaly A. Kudryavtsev University of Sheffield Contributions from many others Outline Note 1: results are relevant to many experiments and techniques (mainly
More informationResults from 730 kg days of the CRESST-II Dark Matter Search
Results from 730 kg days of the CRESST-II Dark Matter Search Federica Petricca on behalf of the CRESST collaboration: Max-Planck-Institut für Physik, München TU München University of Oxford Universität
More informationWIMP: direct and indirect detection Results and perspectives
WIMP: direct and indirect detection Results and perspectives G. Gerbier CEA/Saclay, DAPNIA LSM (Fréjus Lab) - Introduction for -not so- pedestrians - Summary of direct detection exp status : few focus
More informationThe Search for Dark Matter with the XENON Experiment
The Search for Dark Matter with the XENON Experiment Elena Aprile Columbia University Paris TPC Workshop December 19, 2008 World Wide Dark Matter Searches Yangyang KIMS Homestake LUX SNOLAB DEAP/CLEAN
More information=> Ωmatter >> Ωbaryon
Cryogenic Detectors Direct Search Cryogenic Detectors CRESST Project Cosmic Microwave Background Matter-Density Ωmatter Anisotropy: Angular scale => geometry, Ωtot Wilkinson Microwave Anisotropy Probe
More informationThe EDELWEISS III Experiment Status
Quentin ARNAUD for the Edelweiss Collaboration The EDELWEISS III Experiment Status Les Rencontres de Moriond 2014 Cosmology Session 27/03/2014 Dark Matter Search Evidences for Dark Matter Galaxy Clusters
More informationSuperCDMS SNOLAB: A G2 Dark Matter Search. Ben Loer, Fermilab Center for Particle Astrophysics On behalf of the SuperCDMS Collaboration
SuperCDMS SNOLAB: A G2 Dark Matter Search Ben Loer, Fermilab Center for Particle Astrophysics On behalf of the SuperCDMS Collaboration A bit of background Astronomical data at all scales indicates dark
More informationNeutron- and muoninduced. underground physics experiments. L. Pandola, V. Tomasello and V. Kudryavtsev. for the JRA1 and N3 simulation groups
Neutron- and muoninduced background in underground physics experiments L. Pandola, V. Tomasello and V. Kudryavtsev for the JRA1 and N3 simulation groups ILIAS 4 th Annual Meeting, Chambery, 2007 ILIAS
More informationDARK MATTER SEARCHES AT CANFRANC: ANAIS AND ROSEBUD: an update INTRODUCTION AND EXPERIMENTAL GOALS SUMMARY OF RECENT ACHIEVEMENTS AND EFFORTS
DARK MATTER SEARCHES AT CANFRANC: ANAIS AND ROSEBUD: an update María Luisa Sarsa (Universidad de Zaragoza) On behalf of ANAIS & ROSEBUD Collaborations OUTLINE ANAIS INTRODUCTION AND EXPERIMENTAL GOALS
More informationThe Direct Search for Dark Matter
picture: Thomas Tuchan The Direct Search for Dark Matter with special emphasis on the XENON project Rafael F. Lang Purdue University rafael@purdue.edu IPMU Tokyo, March 8, 2013 1 baryon fraction Dark Matter
More informationBackground Studies for the XENON100 Experiment. Alexander Kish Physics Institute, University of Zürich Doktorandenseminar August 30, 2010 UZH
Background Studies for the XENON100 Experiment Alexander Kish Physics Institute, University of Zürich Doktorandenseminar August 30, 2010 UZH The XENON dark matter search program Target Volume 62 kg Total
More informationDARK MATTER SEARCH AT BOULBY MINE
DARK MATTER SEARCH AT BOULBY MINE R. LUSCHER on behalf of the Boulby Dark Matter Collaboration (RAL, Imperial College, Sheffield, UCLA, Texas A&M, Pisa, ITEP, Coimbra, Temple and Occidental) Rutherford
More informationDark Matter -- Astrophysical Evidences and Terrestrial Searches
Dark Matter -- Astrophysical Evidences and Terrestrial Searches Klaus Eitel, Karlsruhe Institute of Technology, KCETA, IK KIT University of the State of Baden-Württemberg and National Large-scale Research
More informationPANDA-X A New Detector for Dark Matter Search. Karl Giboni Shanghai Jiao Tong University
PANDA-X A New Detector for Dark Matter Search Karl Giboni Shanghai Jiao Tong University Seminar at KEK, Tsukuba Japan 3 February, 2011 Jin Ping Laboratory Newly constructed deep underground lab In the
More informationCOUPP: Bubble Chambers for Dark Matter Detection
COUPP: Bubble Chambers for Dark Matter Detection Eric Vázquez Jáuregui SNOLAB Rencontres de Moriond 2013 La Thuille, Italy; March 9-16, 2013 COUPP bubble chambers Target material: superheated CF 3 I spin-dependent/independent
More informationLUX: A Large Underground Xenon detector. WIMP Search. Mani Tripathi, INPAC Meeting. Berkeley, May 5, 2007
LUX: A Large Underground Xenon detector WIMP Search Mani Tripathi INPAC Meeting Berkeley, New Collaboration Groups formerly in XENON10: Case Western, Brown, Livermore Natl. Lab (major fraction of the US
More informationBackground optimization for a new spherical gas detector for very light WIMP detection
Background optimization for a new spherical gas detector for very light WIMP detection a, I. Giomataris b, G. Gerbier b, J. Derré b, M. Gros b, P. Magnier b, D. Jourde b, E.Bougamont b, X-F. Navick b,
More informationA survey of recent dark matter direct detection results
A survey of recent dark matter direct detection results I where we stand II recent results (CDMS, XENON10, etc) III DAMA results IV a bit about modulation V issues with DAMA results VI what to look for
More informationSimulations and other stuff
Simulations and other stuff Vitaly A. Kudryavtsev University of Sheffield Contributions from many others Outline Muon generators: MUSIC, MUSUN. Neutrons from muons. Neutrons from radioactivity. Some notes
More informationCryogenic Dark Matter Searches
Cryogenic Dark Matter Searches Galaxy NGC 3349, HST F. Pröbst MPI für Physik Outline Direct detection Major direct searches with cryogenic detectors: results and performance critical factors CMDS EDELWEISS,
More informationDirect Search for Dark Matter
Direct Search for Dark Matter Direct Dark Matter Search Dark Matter in the Universe Ω = 0.23 non-baryonic not neutrinos physics beyond the standard model thermal relics from Big Bang weakly interacting
More informationXENON100. Marc Schumann. Physik Institut, Universität Zürich. IDM 2010, Montpellier, July 26 th,
XENON100 Marc Schumann Physik Institut, Universität Zürich IDM 2010, Montpellier, July 26 th, 2010 www.physik.uzh.ch/groups/groupbaudis/xenon/ Why WIMP search with Xenon? efficient, fast scintillator (178nm)
More informationDirect Detection of Dark Matter with LUX
Direct Detection of Dark Matter with LUX we are a collaboration of 50+ scientists, please see http://lux.brown.edu for more information Peter Sorensen Lawrence Livermore National Laboratory DNP October
More informationDARK MATTER SEARCHES
DARK MATTER SEARCHES N.J.C. SPOONER Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH E-mail: n.spooner@sheffield.ac.uk A brief review is presented
More informationSearch for Low Energy Events with CUORE-0 and CUORE
Search for Low Energy Events with CUORE-0 and CUORE Kyungeun E. Lim (on behalf of the CUORE collaboration) Oct. 30. 015, APS Division of Nuclear Physics meeting, Santa Fe, NM The CUORE Experiment CUORE
More informationDown-to-earth searches for cosmological dark matter
Down-to-earth searches for cosmological dark matter Carter Hall, University of Maryland October 19, 2016 Astrophysical evidence for dark matter Galaxy cluster collisions Rotation curves Ω 380,000 years
More informationSensitivity of sodium iodide cryogenic scintillation-phonon detectors to WIMP signals
Journal of Physics: Conference Series PAPER OPEN ACCESS Sensitivity of sodium iodide cryogenic scintillation-phonon detectors to WIMP signals To cite this article: M Clark et al 2016 J. Phys.: Conf. Ser.
More informationarxiv: v1 [physics.ins-det] 15 May 2013
Background studies for the EDELWEISS dark matter experiment arxiv:1305.3628v1 [physics.ins-det] 15 May 2013 The EDELWEISS Collaboration, E. Armengaud a, C. Augier b, A. Benoît c, A. Benoît b, L. Bergé
More informationRecent results from the UK Dark Matter Search at Boulby Mine.
Recent results from the UK Dark Matter Search at Boulby Mine. Nigel Smith Rutherford Appleton Laboratory on behalf of the UK Dark Matter Collaboration (Imperial College, Sheffield, RAL) NaI scintillation
More informationBackground Modeling and Materials Screening for the LUX and LZ Detectors. David Malling Brown University LUX Collaboration AARM Meeting February 2011
Background Modeling and Materials Screening for the LUX and LZ Detectors David Malling Brown University LUX Collaboration AARM Meeting February 2011 1 Summary LUX screening program limits background contributions
More informationANAIS: Status and prospects
LSC Laboratorio Subterráneo de Canfranc ANAIS: Status and prospects Miguel Ángel Oliván on behalf of the ANAIS team Universidad de Zaragoza Laboratorio Subterráneo de Canfranc RICAP 2014 Roma International
More informationDirect Detection in the next five years: Experimental challenges and Phonon Mediated Detectors
Direct Detection in the next five years: Experimental challenges and Phonon Mediated Detectors Complementarity between Dark Matter Searches & Collider Experiments Miniworkshop before SUSY06 at Irvine -
More informationSuperCDMS: Recent Results for low-mass WIMPS
SuperCDMS: Recent Results for low-mass WIMPS David G. Cerdeño Institute for Theoretical Physics Universidad Autónoma de Madrid for the SuperCDMS Collaboration Hints for low-mass WIMPs in direct detection
More informationSearch for low-mass WIMPs with Spherical Detectors : NEWS-LSM and NEWS-SNO
Search for low-mass WIMPs with Spherical Detectors : NEWS-LSM and NEWS-SNO G. Gerbier 1 for the NEWS collaboration 2, 1 Queen s University, Physics Department, Kingston, Canada 2 New Experiments With Spheres
More informationEsperimenti bolometrici al Gran Sasso: CUORE e CRESST
Esperimenti bolometrici al Gran Sasso: CUORE e CRESST Marco Vignati 24 Ottobre 2011 0νDBD in Theory Nuclear process: (A,Z) (A,Z+2) + 2 e - Can only happen if lepton number is not conserved. The decay probability
More informationDirect Search for Dark Matter
Direct Search for Dark Matter Direct Dark Matter Search Dark Matter in the Universe Ω = 0.23 non-baryonic not neutrinos physics beyond the standard model thermal relics from Big Bang weakly interacting
More informationNetwork on Direct Dark Matter Search ILIAS N3
Network on Direct Dark Matter Search ILIAS N3 N3 Dark Matter 2/25/2008 ILIAS 1 ILIAS-N3 Dark Matter Network Participating Institutions France: CNRS/CEA CNRS/SPM/CRTBT Grenoble CNRS/IN2P3/IPN Lyon CNRS/IN2P3/CSNSM
More informationTHE CRYOGENIC UNDERGROUND OBSERVATORY FOR RARE EVENTS: STATUS AND PROSPECTS
THE CRYOGENIC UNDERGROUND OBSERVATORY FOR RARE EVENTS: STATUS AND PROSPECTS Eric B. Norman Dept. of Nuclear Engineering Univ. of California, Berkeley, CA U. S. A. Recent results in n physics Neutrinos
More informationStatus of Dark Matter Detection Experiments
Status of Dark Matter Detection Experiments Debasish Majumdar Astroparticle Physics and Cosmology Division Saha Institute of Nuclear Physics Kolkata WIMP Hunting Going beyond gravity, three ways to detect
More informationBackgrounds and Sensitivity Expectations for XENON100
Backgrounds and Sensitivity Expectations for XENON100 IDM08, Stockholm, August 19, 2008 Laura Baudis University of Zurich For the XENON100 Collaboration LNGS collaboration meeting, Oct. 2007 1 ??? The
More informationDark Matter. and TPC Technologies
Dark Matter and TPC Technologies The Physics Case for WIMPs Status of the Field:event by event discrimination Elements of a roadmap Bernard Sadoulet Dept. of Physics /LBNL UC Berkeley UC Institute for
More informationDark Matter - III. Workshop Freudenstadt September 30, GRK 1694: Elementarteilchenphysik bei höchster Energie und höchster Präzision
Dark Matter - III GRK 1694: Elementarteilchenphysik bei höchster Energie und höchster Präzision Workshop Freudenstadt 2015 September 30, 2015 Guido Drexlin, Institut für Experimentelle Kernphysik KIT University
More informationLight Dark Matter and XENON100. For the XENON100 Collaboration Rafael F. Lang Columbia University
Light Dark Matter and XENON100 For the XENON100 Collaboration Rafael F. Lang Columbia University rafael.lang@astro.columbia.edu The XENON Collaboration ~60 scientists from 12 institutions: University of
More informationThe XENON1T experiment
The XENON1T experiment Ranny Budnik Weizmann Institute of Science For the XENON collaboration 1 The XENON1T experiment Direct detection with xenon The XENON project XENON1T/nT 2 Quick introduction and
More informationCurrent status of LUX Dark Matter Experiment
Current status of LUX Dark Matter Experiment by A. Lyashenko Yale University On behalf of LUX collaboration LUX Large Underground Xenon experiment LUX Collaboration: Yale, CWRU, UC Santa Barbara, Brown,
More informationBackground Characterization and Rejection in the LZ Detector. David Malling Brown University IDM 2012 July 25, 2012
Background Characterization and Rejection in the LZ Detector David Malling Brown University IDM 2012 July 25, 2012 LZ Construction 2 Background Sources Ti cryostats 1500 kg
More informationarxiv:astro-ph/ v1 21 Apr 2000
BACKGROUND DISCRIMINATION CAPABILITIES OF A HEAT AND IONIZATION GERMANIUM CRYOGENIC DETECTOR arxiv:astro-ph/438v1 21 Apr 2 EDELWEISS COLLABORATION P. Di Stefano a, L. Bergé b, B. Chambon c, M. Chapellier
More informationStatus of the CUORE and CUORE-0 experiments at Gran Sasso
Status of the CUORE and CUORE-0 experiments at Gran Sasso S. Di Domizio INFN and University of Genova for the CUORE collaboration Weak Interactions and Neutrinos Natal, September 19 2013 Neutrinoless double
More informationDirect Dark Matter and Axion Detection with CUORE
Direct Dark Matter and Axion Detection with CUORE Marco Vignati University of Rome La Sapienza & INFN Rome on behalf of the CUORE collaboration Panic 11, July 5, MIT 988 TeO crystals Ton scale bolometric
More informationMeasurement of 39 Ar in Underground Argon for Dark Matter Experiments
Measurement of 39 Ar in Underground Argon for Dark Matter Experiments Jingke Xu Princeton University June 7 th, 2013 1 Evidences for Dark Matter Rotation Curve Gravitational Lensing CMB Power Spectrum
More informationDirect Search for Dark Matter
Direct Search for Dark Matter Dark Matter Search Dark Matter in the Universe physics beyond the standard model how to detect Dark Matter particles Josef Jochum Eberhard Karls Universität Tübingen Kepler
More informationTowards One Tonne WIMP Direct Detectors: Have we got what it takes?
Towards One Tonne WIMP Direct Detectors: Have we got what it takes? 000922 Center for Particle Astrophysics UC Berkeley source at http://cdms.berkeley.edu/gaitskell/ Gaitskell Future Reach / Lower limit
More informationcryogenic calorimeter with particle identification for double beta decay search
cryogenic calorimeter with particle identification for double beta decay search Cuore Upgrade with Particle IDentification In the middle of 2015 INFN decided to support CUPID activity to develop: CUPID-0:
More informationSensitivity and Backgrounds of the LUX Dark Matter Search
Sensitivity and Backgrounds of the LUX Dark Matter Search 1 LUX Goal: Direct Detection of Dark Matter WMAP 5-year data (2008) gives matter densities (Ω) based on best fit to Λ-CDM cosmological model: Ω
More informationDirect dark matter search using liquid noble gases
Direct dark matter search using liquid noble gases Teresa Marrodán Undagoitia marrodan@physik.uzh.ch Physik Institut Universität Zürich Texas Symposium 2010, Heidelberg, 09.11.2010 Teresa Marrodán Undagoitia
More informationStatus of the CUORE and CUORE-0 experiments at Gran Sasso
Status of the CUORE and CUORE-0 experiments at Gran Sasso S. Di Domizio INFN and University of Genova for the CUORE collaboration Les Rencontres de Physique de la Vallée d'aoste La Thuile, February 25
More informationDark matter search with the SABRE experiment
Dark matter search with the SABRE experiment Giulia D Imperio* for the SABRE collaboration *INFN Roma 1 25-07-2017 TAUP 2017 Sudbury, Canada 1 Dark matter detection through annual modulation WIMP is one
More informationDark Matter Detection with XENON100 Accomplishments, Challenges and the Future
Dark Matter Detection with XENON0 Accomplishments, Challenges and the Future http://xenon.astro.columbia.edu Kaixuan Ni Columbia University TeV Particle Astrophysics IHEP, Beijing, Sep.4-8, 008 The Challenges
More informationEuropean Underground Laboratories and ILIAS
LRT wokshop, Aussois, October,1-4 2006 European Underground Laboratories and ILIAS F. Piquemal (CENBG and LSM) Acknowlegement to N. Spooner (USFD and Boulby), J. Morales, (Zaragoza and Canfranc) and G.
More informationLooking for WIMPs A Review
Looking for WIMPs A Review Beatriz E. Burrola Gabilondo There is currently a race to find out what dark matter actually is. Weakly Interacting Massive Particles (WIMPs) are a strong candidate for dark
More informationLARGE UNDERGROUND XENON
LARGE UNDERGROUND XENON Cláudio Silva (LIP Coimbra) On behalf of the LUX Collaboration IDPASC Dark Matter Workshop 17 December 2011 1 THE LUX COLLABORATION Collaboration was formed in 2007 and fully funded
More informationThe GERmanium Detector Array
The GERmanium Detector Array n n ν=v p e - e - p Outline: Exp. issues of 0νββ-decay of 76 Ge Concept of GERDA Status of the experiment Summary and conclusions Kevin Kröninger (Max-Planck-Institut für Physik,
More informationDouble Beta Present Activities in Europe
APPEAL Workshop 19-21 February 2007, Japan Double Beta Present Activities in Europe Xavier Sarazin Laboratoire de l Accélérateur Linéaire Orsay France Germanium detector Bolometers CdZnTe semiconductors
More informationModane underground laboratory (Fréjus)
Modane underground laboratory (Fréjus) Present and Future IDM 2006, Rhodes F. Piquemal (CENBG, CNRS-IN2P3, U. Bordeaux I) Presented by G. Gerbier (CEA-Dapnia Saclay) Modane Underground Laboratory (Fréjus)
More informationThe XENON100 Dark Matter Experiment
The XENON0 Dark Matter Experiment Marc Schumann 1, Eirini Tziaferi 2 for the XENON0 collaboration 1 Rice University, 60 Main St., Houston TX, USA 2 University of Zürich, Winterthurerstr. 190, Zürich, Switzerland
More informationDARWIN: dark matter WIMP search with noble liquids
DARWIN: dark matter WIMP search with noble liquids Physik Institut, University of Zurich E-mail: laura.baudis@physik.uzh.ch DARWIN (DARk matter WImp search with Noble liquids) is an R&D and design study
More informationThe COSINUS project. development of new NaI- based detectors for dark ma6er search. STATUS report Karoline Schäffner
The COSINUS project development of new NaI- based detectors for dark ma6er search STATUS report 2016 Karoline Schäffner SCATTERING SCENARIO Dark matter particles scatter off nuclei elastically coherently:
More informationBackgrounds in PICO. Eric Vázquez Jáuregui SNOLAB. AARM Meeting Fermilab; Batavia IL, USA; March 19, 2014
Backgrounds in PICO Eric Vázquez Jáuregui SNOLAB AARM Meeting Fermilab; Batavia IL, USA; March 19, 2014 PICO at SNOLAB SNOLAB deepest and cleanest large-space international facility in the world 2 km
More informationXMASS: a large single-phase liquid-xenon detector
XMASS: a large single-phase liquid-xenon detector Katsuki Hiraide, the university of Tokyo for the XMASS Collaboration October 3 rd, 2016 IPRD16@Siena, Italy 1 XMASS project XMASS: a multi purpose experiment
More informationarxiv: v1 [astro-ph.im] 30 Jan 2014
NEWS : a new spherical gas detector for very low mass WIMP detection arxiv:1401.7902v1 [astro-ph.im] 30 Jan 2014 G. Gerbier, I. Giomataris, P. Magnier, A. Dastgheibi, M. Gros, D. Jourde, E. Bougamont,
More informationChapter 12. Dark Matter
Karl-Heinz Kampert Univ. Wuppertal 128 Chapter 12 Dark Matter Karl-Heinz Kampert Univ. Wuppertal Baryonic Dark Matter Brightness & Rotation Curve of NGC3198 Brightness Rotation Curve measured expected
More informationThe Very-Near-Site at Chooz a New Experimental Hall to Study CEnNS
The Very-Near-Site at Chooz a New Experimental Hall to Study CEnNS T. Lasserre1,2, A. Langenkamper3, C. Nones1, J. Rothe4, R. Strauss4, M. Vivier1, V. Wagner1, A. Zolotarova1 CEA, Centre de Saclay, DRF/Irfu,
More informationBackground and sensitivity predictions for XENON1T
Background and sensitivity predictions for XENON1T Marco Selvi INFN - Sezione di Bologna (on behalf of the XENON collaboration) Feb 19 th 016, UCLA Dark Matter 016 1 Outline Description of the detector;
More informationDarkSide-50: performance and results from the first atmospheric argon run
DarkSide-50: performance and results from the first atmospheric argon run Yann Guardincerri on behalf of the DarkSide Collaboration August 27th, 2014 1 / 21 DarkSide Direct detection search for WIMP dark
More informationDarkSide new results and prospects
DarkSide new results and prospects Stefano Davini - INFN Genova on behalf of the DarkSide collaboration La Thuile, March 20, 2018 The DarkSide WIMP-argon program at LNGS 2011 2012 2013 2014 2015 2016 2017
More informationRare Event Searches and the Underground
Rare Event Searches and the Underground session intro cosmogenics signal background > 1 but...begin to see your environment! session intro direct DM detection : measurement of nuclear RECOIL events in
More informationLuca Grandi.
Luca Grandi http://warp.pv.infn.it idm2004 - September 2004 Wimp Argon Programme Collaboration R. Brunetti, E. Calligarich, M. Cambiaghi, C. De Vecchi, R. Dolfini, L. Grandi, A. Menegolli, C. Montanari,
More informationLatest Results on Direct Detection of Dark Matter WIMPs - CDMS & SuperCDMS
Latest Results on Direct Detection of Dark Matter WIMPs - CDMS & SuperCDMS TeV 2006, Madison - August 30, 2006 Blas Cabrera Co-Spokesperson CDMS & Spokesperson SuperCDMS Summary of current status of Direct
More informationBACKGROUND DISCRIMINATION CAPABILITIES OF A HEAT AND IONIZATION GERMANIUM CRYOGENIC DETECTOR EDELWEISS COLLABORATION a P. Di Stefano a; et al., CEA, C
BACKGROUND DISCRIMINATION CAPABILITIES OF A HEAT AND IONIZATION GERMANIUM CRYOGENIC DETECTOR EDELWEISS COLLABORATION a P. Di Stefano a; et al., CEA, Centre d'etudes Nucléaires de Saclay, DSM/DAPNIA, F-91191
More informationStudies of the XENON100 Electromagnetic Background
Studies of the XENON100 Electromagnetic Background Daniel Mayani Physik-Institut University of Zurich PhD Seminar PSI, August 26-27, 2015 Searching for elusive particles The main challenge for experiments
More informationShedding Light on Dark Matter from Deep Underground with XENON. Kaixuan Ni (Columbia)
Shedding Light on Dark Matter from Deep Underground with XENON Kaixuan Ni (Columbia) University of Maryland, 11-25-2008 A well-known mystery for astronomers Fritz Zwicky, The Astrophysical Journal, 85
More informationDark Matter Searches. Marijke Haffke University of Zürich
University of Zürich Structure Ι. Introduction - Dark Matter - WIMPs Ι Ι. ΙΙΙ. ΙV. V. Detection - Philosophy & Methods - Direct Detection Detectors - Scintillators - Bolometer - Liquid Noble Gas Detectors
More informationAxion search with Dark Matter detector
Axion search with Dark Matter detector Paolo Beltrame Durham IPPP, 14th March 2016 1 Direct DM search Dark matter (DM) Milky Way s halo => flux on Earth ~ 10 5 cm -2 s -1 ρχ ~ 0.3 GeV/cm 3 and 100 GeV/c
More information