Neutron production by cosmic-ray muons in various materials

Manukovsky, K.V.; Ryazhskaya, O. G.; Sobolevsky, N. M.; Yudin, A. V.

doi:10.1134/s106377881603011x

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…Geant4 also has the necessary tools for specifying objects of complex geometry and includes a wide set of theoretical models describing the interaction of elementary particles with matter. A detailed description of the set of physical models applied in our simulations can be found in [27]. It should be noted that these physical settings were specially selected and optimized to simulate the experimental setups in underground low-background laboratories.…”

Section: Simulation Of the Lsd Responsementioning

confidence: 99%

Simulation of the LSD Response to the Neutrino Burst from SN 1987A

Manukovskiy,

Yudin,

Agafonova

et al. 2022

Preprint

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Using the Geant4 code, we have performed a full-scale simulation of the LSD response to the neutrino burst from SN 1987A. The neutrino flux parameters were chosen according to one of the models: the standard collapse model or the rotational supernova explosion model. We showed that, depending on the chosen parameters, one can either obtain the required number of pulses in the detector or reproduce their energy spectrum, but not both together. The interaction of neutrino radiation both with LSD itself and with the material of the surrounding soil was taken into account in our simulation. We also explored the hypothesis that the entire unique LSD signal at 2:52 UT was produced by neutron fluxes from the surrounding granite. However, this hypothesis was not confirmed by our simulation. The results obtained provide a rich material for possible interpretations.

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Section: Simulation Of the Lsd Responsementioning

confidence: 99%

Simulation of the LSD Response to the Neutrino Burst from SN 1987A

Manukovskiy,

Yudin,

Agafonova

et al. 2022

Preprint

Self Cite

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“…In dense media, such as rock and water, most muons stop, capture electrons, form muonium, or undergo deep-inelastic scattering with rock nuclei accompanied by neutron emission (see e.g. Mei & Hime (2006); Manukovsky et al (2016)). In air, most GeV muons decay.…”

Section: Undergroundmentioning

confidence: 99%

On the Accuracy of Underground Muon Intensity Calculations

Fedynitch,

Woodley,

Piro

2021

Preprint

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Cosmic ray muons detected by deep underground or underwater detectors have served as an information source on the high-energy cosmic ray spectrum and hadronic interactions in air showers for almost a century. The theoretical interest in underground muons has nearly faded because space-borne experiments probe the cosmic ray spectrum more directly, and accelerators provide precise measurements of hadron yields. However, underground muons probe unique hadron interaction energies and phase space, which are still inaccessible to present accelerator experiments. The cosmic ray nucleon energies reach the hundred-TeV and PeV ranges, which are barely accessible with space-borne experiments. Our new calculation combines two modern computational tools, mceq, for surface muon fluxes, and proposal, for underground transport. We demonstrate excellent agreement with measurements of cosmic ray muon intensities underground within estimated errors. Beyond that, the precision of historical data turns out to be significantly smaller than our error estimates. This result shows that the sources of high-energy atmospheric lepton flux uncertainties at the surface or underground can be significantly constrained without taking more data or building new detectors. The reduction of uncertainties can be expected to impact data analyses at large-volume neutrino telescopes and for the design of future ton-scale direct dark matter detectors.

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“…This is extrapolated to d = 6.25 m.w.e., for the LASR laboratory. This neutron yield in iron is then converted to a lead equivalent through a scaling factor A β , where A is the atomic weight of the target material and β = 0.76 ± 0.01 [126,127]. The resulting muon-induced neutron generation in the lead shield is 3.95 × 10 6 n/day.…”

Section: Calibrations and Expected Backgroundsmentioning

confidence: 99%

Search for a nonrelativistic component in the spectrum of cosmic rays at Earth

Collar

2018

Phys. Rev. D

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Dark matter particles gravitationally bound to our galaxy should exhibit a characteristic speed distribution limited by their escape velocity at the position of the Earth (vesc 550 km/s). An ongoing search for anomalous cosmic rays at Earth, kinematically similar to cold dark matter, is described. The technique can discriminate between these and known slow-moving particles such as neutrons, would be sensitive to telltale signatures from presently unexplored candidates, and offers the possibility of identifying the mediating type of interaction (nuclear vs. electron recoils). Studies of background identification and abatement in a shallow underground site are presented. The expected reach of the method is discussed, and illustrated by obtaining the first limits for dark matter particles lighter than 100 MeV/c 2 interacting via nuclear recoils. PACS numbers: 95.35.+d, 96.50.Zc, 29.40.Mc

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Neutron production by cosmic-ray muons in various materials

Cited by 7 publications

References 10 publications

Simulation of the LSD Response to the Neutrino Burst from SN 1987A

Simulation of the LSD Response to the Neutrino Burst from SN 1987A

On the Accuracy of Underground Muon Intensity Calculations

Search for a nonrelativistic component in the spectrum of cosmic rays at Earth

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