First Results from the Cryogenic Dark Matter Search in the Soudan Underground Laboratory

Akerib, D. S.; Alvaro-Dean, J.; Armel‐Funkhouser, M. S.; Attisha, M. J.; Baudis, L.; Bauer, D. A.; Beaty, J.; Brink, P. L.; Bunker, R.; Burke, S.; Cabrera, B.; Caldwell, D. O.; Callahan, D.; Castle, J. P.; Chang, C. L.; Choate, R.; Crisler, M. B.; Cushman, P.; Dixon, R.; Dragowsky, M. R.; Driscoll, Donna M.; Duong, L.; Emes, J.; Ferril, R.; Filippini, J. P.; Gaitskell, R. J.; Haldeman, M.; Hale, D.; Holmgren, D.; Huber, M. E.; Johnson, B.; Johnson, W.; Kamat, S.; Kozlovsky, Mark; Kula, L.; Kyre, S.; Lambin, B.; Lu, A.; Mahapatra, R.; Manalaysay, A.; Mandic, V.; May, J.; McDonald, R. J.; Merkel, B.; Meunier, P.; Mirabolfathi, N.; Morrison, S. M.; Nelson, H. N.; Nelson, Robert H.; Novák, L.; Ogburn, R. W.; Orr, Shelley; Perera, Thushara; Isaac, M. C. Perillo; Ramberg, E.; Rau, W.; Reisetter, A.; Ross, R. R.; Saab, T.; Sadoulet, B.; Sander, J.; Savage, Christopher; Schmitt, R.; Schnee, R. W.; Seitz, D. N.; Serfass, B.; Smith, Alan Р.; Smith, G.; Spadafora, A. L.; Sundqvist, K. M.; Thompson, John; Tomada, A.; Wang, G.; Williams, J.; Yellin, S.; Young, B. A.

doi:10.1103/physrevlett.93.211301

Cited by 231 publications

(73 citation statements)

References 28 publications

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“…The value of the dilution factor varies between about 6 and 8 over the scans. These points are consistent with all accelerator bounds, and we have checked using DarkSUSY 3.14 [37] that the resulting spin-independent LSP-nucleon cross sections are below the CDMS limits [38].…”

Section: Resultssupporting

confidence: 50%

Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

Barenboim

Lykken

2006

J. High Energy Phys.

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Terascale supersymmetry has the potential to provide a natural explanation of the dominant dark matter component of the standard ΛCDM cosmology. However once we impose the constraints on minimal supersymmetry parameters from current particle physics data, a satisfactory dark matter abundance is no longer prima facie natural. This Neutralino Tuning Problem could be a hint of nonstandard cosmology during and/or after the Terascale era. To quantify this possibility, we introduce an alternative cosmological benchmark based upon a simple model of quintessential inflation. This benchmark has no free parameters, so for a given supersymmetry model it allows an unambiguous prediction of the dark matter relic density. As a example, we scan over the parameter space of the CMSSM, comparing the neutralino relic density predictions with the bounds from WMAP. We find that the WMAP-allowed regions of the CMSSM are an order of magnitude larger if we use the alternative cosmological benchmark, as opposed to ΛCDM. Initial results from the CERN Large Hadron Collider will distinguish between the two allowed regions.

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Section: Resultssupporting

confidence: 50%

Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

Barenboim

Lykken

2006

J. High Energy Phys.

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“…Although there is no positive signal to date, the most stringent upper limit on the scattering crosssection comes from the XENON-10 collaboration [47], which obtained an upper limit σ( Z 1 p) < ∼ 8 × 10 −8 pb for m e Z 1 ∼ 100 GeV, corresponding to the expected neutralino mass in the HM2DM model for our canonical choice of parameters in figure 1. We compute the spin independent neutralino-proton scattering cross-section (used as the figure of merit in these experiments), and compare it to projections for the sensitivity of Stage 2 detectors (CDMS2 [48], Edelweiss2 [49], CRESST2 [50], ZEPLIN2 [51]) which are expected to probe a factor of ∼ 5 below the XENON-10 bound. 7 We also compare expectations in the HM2DM model with the projected sensitivity of the proposed SuperCDMS detector with 25 kg of Ge, and with proposed ton-size noble liquid detectors (XENON [53], LUX, WARP [54] and CLEAN [55]), for which we use the sensitivity of Warm Argon Project, with 1400 kg of argon as the benchmark.…”

Section: Jhep10(2007)088mentioning

confidence: 99%

Mixed higgsino dark matter from a large SU(2) gaugino mass

Baer

Mustafayev

Summy

et al. 2007

J. High Energy Phys.

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We observe that in SUSY models with non-universal GUT scale gaugino mass parameters, raising the GUT scale SU(2) gaugino mass |M 2 | from its unified value results in a smaller value of −m 2Hu at the weak scale. By the electroweak symmetry breaking conditions, this implies a reduced value of µ 2 visà vis models with gaugino mass unification. The lightest neutralino can then be mixed Higgsino dark matter with a relic density in agreement with the measured abundance of cold dark matter (DM). We explore the phenomenology of this high |M 2 | DM model. The spectrum is characterized by a very large wino mass and a concomitantly large splitting between left-and right-sfermion masses. In addition, the lighter chargino and three light neutralinos are relatively light with substantial higgsino components. The higgsino content of the LSP implies large rates for direct detection of neutralino dark matter, and enhanced rates for its indirect detection relative to mSUGRA. We find that experiments at the LHC should be able to discover SUSY over the portion of parameter space where mg < ∼ 2350 − 2750 GeV, depending on the squark mass, while a 1 TeV electron-positron collider has a reach comparable to that of the LHC. The dilepton mass spectrum in multi-jet + ℓ + ℓ − + E miss T events at the LHC will likely show more than one mass edge, while its shape should provide indirect evidence for the large higgsino content of the decaying neutralinos.

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“…By using the equipartition theorem we get β 2 lab = 3(T /m) and therefore β 2 is given by (20). Using Eqs.…”

Section: Relic Density Of the Technicolor Wimpmentioning

confidence: 99%

“…We have taken the velocity of the earth to be v E = 1.05 × v 0 = 1.05 × 230km/sec. In the first results of the CDMS experiment [20], the exposure of the Ge detectors was 19.4 kg · days.…”

Section: Majorana Particles Have Usually Much Smaller Cross Section Cmentioning

confidence: 99%

“…Such a large cross section (given we accept that the local dark matter density in the neighborhood of the earth is 0.2 − 0.4 GeV/cm 3 ) should give a considerable number of counts in earth based experiments like CDMS. The CDMS collaboration has not detected any counts so far [20]. This technibaryon is ruled out as dark matter candidate if it should account for the whole dark matter density.…”

Section: Introductionmentioning

confidence: 99%

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Dark Majorana particles from the minimal walking technicolor theory

Kouvaris

2007

Phys. Rev. D

109

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We investigate the possibility of a dark matter candidate emerging from a minimal walking technicolor theory. In this case techniquarks as well as technigluons transform under the adjoint representation of SU (2) of technicolor. It is therefore possible to have technicolor neutral bound states between a techniquark and a technigluon. We investigate this scenario by assuming that such a particle can have a Majorana mass and we calculate the relic density. We identify the parameter space where such an object can account for the full dark matter density avoiding constraints imposed by the CDMS and the LEP experiments. * Electronic address: kouvaris@nbi.dk

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First Results from the Cryogenic Dark Matter Search in the Soudan Underground Laboratory

Cited by 231 publications

References 28 publications

Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

Colliders as a simultaneous probe of supersymmetric dark matter and Terascale cosmology

Mixed higgsino dark matter from a large SU(2) gaugino mass

Dark Majorana particles from the minimal walking technicolor theory

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