The threshold of gamma-ray induced bubble nucleation in superheated emulsion

Sahoo, Sunita; Seth, S.; Das, Mala

doi:10.1016/j.nima.2019.04.010

Cited by 11 publications

(3 citation statements)

References 30 publications

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“…From Table II and Figure 4, we see that, with suitable choice of the operating temperature, a C 2 H 2 F 4 SLD can serve as a good detector for very low mass (sub-GeVfew GeV) WIMPs. In a related experimental work [41] it is shown that at temperatures T < (38.5 ± 1.4) • C, C 2 H 2 F 4 is insensitive to gamma rays (which can cause nucleation events through electron recoils), though sensitive to neutrons (which give nucleation events through nuclear recoils). Thus, a sufficiently large C 2 H 2 F 4 SLD operated at T ∼ 35 • C, for example, would be sensitive to WIMP-induced nuclear recoil events for WIMPs of mass in the few GeV range down to ∼ 1.2 GeV, depending on the value of b, without being sensitive to background γ-rays.…”

Section: Resultsmentioning

confidence: 95%

Probing low-mass WIMP candidates of dark matter with tetrafluoroethane superheated liquid detectors

Seth,

Sahoo,

Bhattacharjee

et al. 2019

Preprint

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Probing low mass (sub-GeV -few GeV) Weakly Interacting Massive Particle (WIMP) candidates of Dark Matter through WIMP-induced nuclear recoils in Direct Detection experiments requires use of detector materials consisting of low mass target nuclei and low threshold energy. Here we explore the potential of superheated liquid detectors (SLD) with a hydrogen containing liquid, namely, tetrafluoroethane (C2H2F4) (b.p. −26.3 • C), as the target material for probing low mass WIMPs. It is argued that, depending on the operating temperature, threshold energies of < ∼ 0.2 keV may be possible, which would allow WIMPs of masses down to sub-GeV level to be probed. For example, under the assumption of 100% detector efficiency, a C2H2F4 SLD operated at 55 • C with a total exposure of 1000 kg.day would be able to probe WIMPs of mass ∼ 5, 1 and 0.3 GeV at the spinindependent WIMP-nucleon cross section (σ SI χn ) sensitivity levels of σ SI χn,90 ∼ 6.4 × 10 −8 , 6.1 × 10 −7 and 5.6 × 10 −4 pb, respectively, where σ SI χn,90 is the 90% C.L. Poisson upper limit on σ SI χn for zero observed events and no background.

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Section: Resultsmentioning

confidence: 95%

Probing low-mass WIMP candidates of dark matter with tetrafluoroethane superheated liquid detectors

Seth,

Sahoo,

Bhattacharjee

et al. 2019

Preprint

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“…Bubble chambers are sealed vessels filled with a liquid under pressure. To understand the principles of bubble nucleation [69], consider a bubble in thermal and chemical equilibrium. 226 Ra spikes(dots) Taken from [70] .…”

Section: Bubble Chambers and Superheated Liquidsmentioning

confidence: 99%

Dark Matter direct detection of classical WIMPs

Cooley

2022

SciPost Phys. Lect. Notes

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One of the highest priorities in particle physics today is the identification of the constituents of dark matter. This manuscript is a supplement to pedagogical lectures given at the 2021 Les Houches Summer School on Dark Matter. The lectures cover topics related to the direct detection of Weakly Interaction Massive Particle (WIMP) dark matter, including the distribution of dark matter, nuclear scattering, backgrounds, planning and designing of experiments, and a sampling of planned and ongoing experiments.

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“…Adapted from [54] 7.4 Bubble Chambers and Superheated Liquids Bubble chambers are sealed vessels filled with a liquid under pressure. To understand the principles of bubble nucleation [56], consider a bubble in thermal and chemical equilibrium. In that case the temperature of the liquid is equal to the temperature of the bubble.…”

Section: Cresstmentioning

confidence: 99%

Dark Matter Direct Detection of Classical WIMPs

Cooley

2021

Preprint

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One of the highest priorities in particle physics today is the identification of the constituents of dark matter. This manuscript is a supplement to pedagogical lectures given at the 2021 Les Houches Summer School on Dark Matter. The lectures cover topics related to the direct detection of WIMP dark matter, including the distribution of dark matter, nuclear scattering, backgrounds, planning and designing of experiments and a sampling of planned and ongoing experiments.

show abstract

The threshold of gamma-ray induced bubble nucleation in superheated emulsion

Cited by 11 publications

References 30 publications

Probing low-mass WIMP candidates of dark matter with tetrafluoroethane superheated liquid detectors

Probing low-mass WIMP candidates of dark matter with tetrafluoroethane superheated liquid detectors

Dark Matter direct detection of classical WIMPs

Dark Matter Direct Detection of Classical WIMPs

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