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NSR database version of April 27, 2024.

Search: Author = S.W.Li

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2019ZH29      Phys.Rev. C 99, 055810 (2019)

G.Zhu, S.W.Li, J.F.Beacom

Developing the MeV potential of DUNE: Detailed considerations of muon-induced spallation and other backgrounds

NUCLEAR REACTIONS ⁴⁰Ar(μ, X)⁸B/⁸He/⁸Li/⁹Li/⁹C/¹¹Be/¹¹Be/¹¹Li/¹²B/¹²N/¹²Be/¹³O/¹³B/¹⁴B/¹⁵C/¹⁶C/¹⁶N/¹⁷N/¹⁸N/²⁰F/²³F/²⁶Na/²⁷Na/²⁹Mg/³⁰Al/³¹Al/³²Al/³²P/³³P/³⁴P/³⁵S/³⁶Cl/³⁷Ar/³⁸Cl/³⁹Cl/³⁹Ar/⁴⁰Cl/⁴¹Ar, E=1-10000 GeV; calculated β-decaying isotopic production yield from cosmic ray muon spallation on liquid argon in the Deep Underground Neutrino Experiment (DUNE), spallation product β^--decay spectra and time evolution, and data cuts for background minimization using the Monte Carlo code FLUKA; quantified rates of single and multiple MeV events due to spallation, radiogenic neutron capture, and other background activities. Comparison with other calculated yields from spallation reactions.

doi: 10.1103/PhysRevC.99.055810
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2014LI16      Phys.Rev. C 89, 045801 (2014)

S.W.Li, J.F.Beacom

First calculation of cosmic-ray muon spallation backgrounds for MeV astrophysical neutrino signals in Super-Kamiokande

NUCLEAR REACTIONS ¹⁸O(n, X), (π⁺, X), (π^-, X), (μ^-, X), (γ, X), [π and γ from interaction of cosmic muons with water], E=high energy; calculated yields of spallation products from interaction of cosmic-ray muons with water, and resultant background from β decays of spallation products of ⁸He, ^8,9,11Li, ^8,12,13,14B, ^9,15,16C, ^11,12Be, ^12,16,17,18N, ¹³O, and that by stable isotopes of ^9,10Be, ^10,11B, ^{10,11,12,13,14}C, ^13,14,15N, ^14,15O; calculated simulated cosmic-ray muon flux spectrum, energy loss for vertical through-going muons passing through Super-Kamiokande (Super-K) fiducial volume, secondary particle path length spectra and absorption distance produced by cosmic-ray muons in Super-K, spallation decay rate distribution and background energy spectra, parent particle kinetic energy spectra, cumulative distribution of isotopes perpendicular to the muon track. Relevance to backgrounds for experiments concerned with detection of solar neutrinos or diffuse supernova neutrino background (DSNB) signals as in Super-Kamiokande project. Used simulation code FLUKA and other theoretical insights. Comparison with available experimental data from Super-Kamiokande.

doi: 10.1103/PhysRevC.89.045801
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