New limits on spin-dependent coupled WIMPs and on 2β processes in 40Ca and 46Ca by using low radioactive CaF2(Eu) crystal scintillators

Belli, P.; Bernabei, R.; Dai, C. J.; Grianti, F.; He, H. L.; Ignesti, G.; Incicchitti, A.; Kuang, H. H.; Ma, J.M.; Montecchia, F.; Ponkratenko, O. A.; Prosperi, D.; Tretyak, V. I.; Zdesenko, Yu.G.

doi:10.1016/s0550-3213(99)00618-5

Cited by 68 publications

(20 citation statements)

References 28 publications

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“…For the 2ν2EC transition to the ground state the atom deexcites via the emission of X-rays and/or Auger electrons, and the observable energy equals the sum of the binding energies of the captured electrons. Because K electrons are closest to the nucleus, the most probable process is double K-capture (2ν2K) ‡, ‡ Using the code CAPTURAT [17], the probability of 2K (2L) capture can be estimated as 0.85 (0.01) for 40 Ca and 0.40 (0.14) for 180 W. a The limit in [20] is given for 2ν2EC assuming a probability of 0.81 for double K-capture. b The predicted half-life in [6] is calculated for m ββ = 50 meV.…”

Section: Introductionmentioning

confidence: 99%

New limits on double electron capture of⁴⁰Ca and¹⁸⁰W

Angloher

Bauer

et al. 2016

J. Phys. G: Nucl. Part. Phys.

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Section: Introductionmentioning

confidence: 99%

New limits on double electron capture of⁴⁰Ca and¹⁸⁰W

Angloher

Bauer

et al. 2016

J. Phys. G: Nucl. Part. Phys.

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“…On the other hand, at present detectors are still not sensitive enough to explore the parameter space of the MSSM, despite recent progress [17].…”

Section: Introductionmentioning

confidence: 99%

Upper and Lower Limits on Neutralino WIMP Mass and Spin–Independent Scattering Cross Section, and Impact of New (g−2)_μMeasurement

Kim

Nihei

Roszkowski

et al. 2002

J. High Energy Phys.

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Abstract:We derive the allowed ranges of the spin-independent interaction cross section σ SI p for the elastic scattering of neutralinos on proton for wide ranges of parameters of the general Minimal Supersymmetric Standard Model. We investigate the effects of the lower limits on Higgs and superpartner masses from colliders, as well as the impact of constraints from b → sγ and the new measurement of (g − 2) µ on the upper and lower limits on σ SI p . We further explore the impact of the neutralino relic density, including coannihilation, and of theoretical assumptions about the largest allowed values of the supersymmetric parameters. For µ > 0, requiring the latter to lie below 1 TeV leads to σ SI p ∼ > 10 −11 pb at m χ ∼ 100 GeV and σ SI p ∼ > 10 −8 pb at m χ ∼ 1 TeV. When the supersymmetric parameters are allowed above 1 TeV, for 440 GeV ∼ < m χ ∼ < 1020 GeV we derive a parameter-independent lower limit of σ SI p ∼ > 2 × 10 −12 pb. (No similar lower limits can be set for µ < 0 nor for 1020 GeV ∼ < m χ ∼ < 2.6 TeV.) Requiring Ω χ h 2 < 0.3 implies a parameter-independent upper limit m χ ∼ < 2.6 TeV. The new e + e − -based measurement of (g − 2) µ restricts m χ ∼ < 350 GeV at 1 σ CL and m χ ∼ < 515 GeV at 2 σ CL, and implies µ > 0. The largest allowed values of σ SI p have already become accessible to recent experimental searches.

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“…3 is close to UKDMC's limits, we should also be able to compare our limits in the a p − a n plane with DAMA's spin-dependent annual modulation allowed region when DAMA publishes relevant data to calculate the allowed region in the a p − a n plane. [13,14,15,16] are shown in a thin solid and dotted lines, respectively. DAMA's allowed region investigated in a mixed coupling framework is shown as "case c" in Ref.…”

Section: Discussionmentioning

confidence: 99%

First results from dark matter search experiment with LiF bolometer at Kamioka underground laboratory

Miuchi

Minowa

Takeda

et al. 2003

Astroparticle Physics

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The Tokyo group has performed the first underground dark matter search experiment from 2001 through 2002 at Kamioka Observatory(2700m.w.e). The detector is eight LiF bolometers with a total mass of 168g and aims for the direct detection of WIMPs via spin-dependent interaction. With an exposure of 4.1 kg·days, we derived the limits in the a p − a n (WIMP-nucleon couplings) plane and excluded a large part of the parameter space allowed by the UKDMC experiment.

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New limits on spin-dependent coupled WIMPs and on 2β processes in 40Ca and 46Ca by using low radioactive CaF2(Eu) crystal scintillators

Cited by 68 publications

References 28 publications

New limits on double electron capture of⁴⁰Ca and¹⁸⁰W

New limits on double electron capture of⁴⁰Ca and¹⁸⁰W

Upper and Lower Limits on Neutralino WIMP Mass and Spin–Independent Scattering Cross Section, and Impact of New (g−2)_μMeasurement

First results from dark matter search experiment with LiF bolometer at Kamioka underground laboratory

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New limits on spin-dependent coupled WIMPs and on 2β processes in 40Ca and 46Ca by using low radioactive CaF2(Eu) crystal scintillators

Cited by 68 publications

References 28 publications

New limits on double electron capture of40Ca and180W

New limits on double electron capture of40Ca and180W

Upper and Lower Limits on Neutralino WIMP Mass and Spin–Independent Scattering Cross Section, and Impact of New (g−2)μMeasurement

First results from dark matter search experiment with LiF bolometer at Kamioka underground laboratory

Contact Info

Product

Resources

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New limits on double electron capture of⁴⁰Ca and¹⁸⁰W

New limits on double electron capture of⁴⁰Ca and¹⁸⁰W

Upper and Lower Limits on Neutralino WIMP Mass and Spin–Independent Scattering Cross Section, and Impact of New (g−2)_μMeasurement