Dark Matter Results from 225 Live Days of XENON100 Data

Aprile, E.; Alfonsi, M.; Arisaka, K.; Arneodo, F.; Bălan, C.; Baudis, L.; Bauermeister, B.; Behrens, A.; Beltrame, P.; Bokeloh, K.; Brown, E.; Bruno, G.; Budnik, R.; Cardoso, J. M. R.; Chen, W. T.; Choi, Bernard C. K.; Cline, D.; Colijn, A. P.; Contreras, H.; Cussonneau, J. P.; Decowski, M. P.; Duchovni, E.; Fattori, S.; Ferella, A. D.; Fulgione, W.; Gao, F.; Garbini, M.; Ghag, C.; Giboni, Karl; Goetzke, L. W.; Grignon, C.; Gross, E.; Hampel, W.; Kaether, F.; Kish, A.; Lamblin, J.; Landsman, H.; Lang, R. F.; Calloch, M. Le; Lévy, C.; Lim, K. E.; Lin, Q.; Lindemann, S.; Lindner, M.; Lopes, J. A. M.; Lung, K.; Undagoitia, T. Marrodán; Massoli, F. V.; Fernandez, A. J. Melgarejo; Meng, Y.; Molinario, A.; Nativ, E.; Ni, K.; Oberlack, U.; Orrigo, S. E. A.; Pantic, E.; Persiani, R.; Plante, G.; Priel, N.; Rizzo, A.; Rosendahl, S. S.E.; Santos, J.M.F. dos; Sartorelli, G.; Schreiner, J.; Schümann, M.; Lavina, L. Scotto; Scovell, P. R.; Selvi, M.; Shagin, P.; Simgen, H.; Teymourian, A.; Thers, D.; Vitells, O.; Wang, H.; Weber, M.; Weinheimer, C.

doi:10.1103/physrevlett.109.181301

Cited by 1,300 publications

(1,593 citation statements)

References 36 publications

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“…The detection of an annually modulated signal in dark matter detectors has been reported by both the DAMA [66] and COGENT [67] experiments. However, these results are in tension with null results reported by other experiments [68,69].…”

Section: Annual Modulationsupporting

confidence: 54%

“…The ATLAS limits for operators involving quarks are for the four light flavours assuming equal coupling strengths for all quark flavours to the WIMPs. For comparison, 90% CL limits from the XENON100 [70], CDMSII [71], CoGeNT [72], CDF [19], and CMS [21] experiments are shown. scattering cross sections is done using equations (3) to (6) of ref.…”

Section: Production At Collidersmentioning

confidence: 99%

“…[32] uncertainties on hadronic matrix elements are neglected here. The spin-independent ATLAS limits in figure 5 are particularly relevant in the low m χ region (< 10 GeV) where the XENON100 [70], CDMSII [71] or CoGeNT [72] limits suffer from a kinematic suppression. Should DM particles couple exclusively to gluons via D11, the collider limits would be competitive up to m χ of about 20 GeV, and remain important over almost the full m χ range covered.…”

Section: Production At Collidersmentioning

confidence: 99%

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Detector Simulation and WIMP Search Analysis for the Cryogenic Dark Matter Search Experiment

McCarthy¹

2013

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Astrophysical and cosmological measurements on the scales of galaxies, galaxy clusters, and the universe indicate that ∼85% of the matter in the universe is composed of dark matter, made up of non-baryonic particles that interact with cross-sections on the weak scale or lower. Hypothetical Weakly Interacting Massive Particles, or WIMPs, represent a potential solution to the dark matter problem, and naturally arise in certain Standard Model extensions.The Cryogenic Dark Matter Search (CDMS) collaboration aims to detect the scattering of WIMP particles from nuclei in terrestrial detectors. Germanium and silicon particle detectors are deployed in the Soudan Underground Laboratory in Minnesota. These detectors are instrumented with phonon and ionization sensors, which allows for discrimination against electromagnetic backgrounds, which strike the detector at rates orders of magnitude higher than the expected WIMP signal.This dissertation presents the development of numerical models of the physics of the CDMS detectors, implemented in a computational package collectively known as the CDMS Detector Monte Carlo (DMC). After substantial validation of the models against data, the DMC is used to investigate potential backgrounds to the next iteration of the CDMS experiment, known as SuperCDMS. Finally, an investigation of using the DMC in a reverse Monte Carlo analysis of WIMP search data is presented.140.23 kg-days of WIMP search data from the silicon detectors in the CDMSII experiment is also analyzed. The resulting upper limits on the WIMP-nucleon crosssection are higher than those published by other experiments at all WIMP masses, and the lowest limit on the WIMP-nucleon cross-section is 1.07*10 −42 cm 2 at a mass 3 of 60 GeV/c 2 . These results do provide new and interesting constraints at WIMP masses ≤40 GeV/c 2 and cross sections from 10 −42 -10 −39 cm 2 , a region in which some WIMP search experiments have claimed evidence for a WIMP signal, which other experiments claim to have ruled out.

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Section: Annual Modulationsupporting

confidence: 54%

Section: Production At Collidersmentioning

confidence: 99%

Section: Production At Collidersmentioning

confidence: 99%

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Detector Simulation and WIMP Search Analysis for the Cryogenic Dark Matter Search Experiment

McCarthy¹

2013

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“…The results for the spin-independent higgsino-proton scattering cross section are shown in figure 5 and compared with the current limits from XENON-100, LUX [71,72] and future reach projections of XENON-1T [73]. We also present the 3σ probing sensitivity of the higgsino mass µ by our proposed monojet strategy at the LHC with L = 3000 fb −1 .…”

Section: Calculations and Discussionmentioning

confidence: 90%

Probing light higgsinos in natural SUSY from monojet signals at the LHC

Han

Kobakhidze

Liu

et al. 2014

J. High Energ. Phys.

127

123

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We investigate a strategy to search for light, nearly degenerate higgsinos within the natural MSSM at the LHC. We demonstrate that the higgsino mass range µ in 100 − 160 GeV, which is preferred by the naturalness, can be probed at 3σ significance through the monojet search at 14 TeV HL-LHC with 3000 fb −1 luminosity. The proposed method can also probe certain region in the parameter space for the lightest neutralino with a high higgsino purity, that cannot be reached by planned direct detection experiments at XENON-1T(2017).

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“…Accelerator and direct detection experiments are most sensitive to DM particles with mass below a few hundred GeV. Positive results for signals of ∼10 GeV DM reported by some direct-searches experiments [7][8][9][10] could not be confirmed by other detectors, and are in tension with results obtained by XENON100 [11,12] and LUX [13]. On the other hand, the rather heavy Higgs boson [14] and the lack of indications of new physics at the Large Hadron Collider, strongly constrain the existence of a WIMP at the electroweak scale.…”

Section: Introductionmentioning

confidence: 99%

Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC

Aleksić

2016

Springer Theses

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Abstract. We present the results of stereoscopic observations of the satellite galaxy Segue 1 with the MAGIC Telescopes, carried out between 2011 and 2013. With almost 160 hours of good-quality data, this is the deepest observational campaign on any dwarf galaxy performed so far in the very high energy range of the electromagnetic spectrum. We search this large data sample for signals of dark matter particles in the mass range between 100 GeV and 20 TeV. For this we use the full likelihood analysis method, which provides optimal sensitivity to characteristic gamma-ray spectral features, like those expected from dark matter annihilation or decay. In particular, we focus our search on gamma-rays produced from different final state Standard Model particles, annihilation with internal bremsstrahlung, monochromatic lines and box-shaped signals. Our results represent the most stringent constraints to the annihilation cross-section or decay lifetime obtained from observations of satellite galaxies, for masses above few hundred GeV. In particular, our strongest limit (95% confidence level) corresponds to a ∼500 GeV dark matter particle annihilating into τ + τ − , and is of order σ ann v ≃ 1.2×10 −24 cm 3 s −1 -a factor ∼40 above the σ ann v thermal value.

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Dark Matter Results from 225 Live Days of XENON100 Data

Cited by 1,300 publications

References 36 publications

Detector Simulation and WIMP Search Analysis for the Cryogenic Dark Matter Search Experiment

Detector Simulation and WIMP Search Analysis for the Cryogenic Dark Matter Search Experiment

Probing light higgsinos in natural SUSY from monojet signals at the LHC

Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC

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