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Holger Kluck's Production Yield of Muon-Induced Neutrons in Lead: Measured PDF

By Holger Kluck

ISBN-10: 3319185268

ISBN-13: 9783319185262

ISBN-10: 3319185276

ISBN-13: 9783319185279

The paintings offered during this ebook is an important step in the direction of figuring out and finally suppressing historical past within the direct look for darkish subject debris scattering off germanium detectors. even if the flux of cosmic muons is diminished by means of many orders of importance in underground laboratories, the remainder vigorous muons set off neutrons via a variety of procedures, neutrons which may almost certainly mimic a depressing topic sign. This thesis describes the dimension of muon-induced neutrons over greater than three years within the Modane underground laboratory. the information are complemented by way of a radical modeling of the neutron sign utilizing the GEANT4 simulation package deal, demonstrating the appropriateness of this software to version those infrequent strategies. therefore, an exact neutron creation yield should be awarded. hence, destiny underground experiments can be capable of reliably version the predicted fee of muon-induced neutrons, making it attainable to strengthen the mandatory protecting inspiration to suppress this historical past component.

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Extra info for Production Yield of Muon-Induced Neutrons in Lead: Measured at the Modane Underground Laboratory

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Their cascade decay to the LSP would cause a high jet ( j) multiplicity as signature [174, 221]. / T ) in the final state The signature for the LSP would be missing transverse energy ( E accompanied by standard model particles [174]. g. ( E / T + l +l − ) [148], but found no signal so far. g. the anomalous magnetic moment of the muon aμ = (gμ − 2)/2 [102], and b-physics is used to constrain the CMSSM parameters. An example for the latter category is the exclusive dimuon decay of B0s , B0 mesons which are helicity suppressed in the standard model, but its branching ratios are enhanced in SUSY models [82].

Gorshkov GV, Zyabkin VA (1968) Production of neutrons in Pb, Cd, Fe, and Al under the influence of cosmic-ray muons at a depth of 150 in water equivalent (trans: Adashko JG). Sov J Nucl Phys 7(4):470–474. Orig. pub. as Yad Fiz 7:770–777 [in Russian] 30. e. under the influence of cosmic-radiation mesons traveling at large zenith angles (trans: Adashko JG). Sov J Nucl Phys 12(2):187–190. Orig. pub. as Yad Fiz 12:340–346 [in Russian] 31. Gorshkov GV, Zyabkin VA, Yakovlev RM (1974) Production of neutrons in Pb, Cd, Fe, and Al by high energy muons (trans: Adashko JG).

The direct search for scattering of galactic dark matter off terrestrial targets will be discussed in Sect. 5. The type of annihilation products depends on the dark matter candidate and its interaction with standard model particles. Therefore, only given dark matter models are testable. Within the MSSM, the annihilation products depend on the LSP, its mass, and the MSSM mass spectrum. In principal, the dark matter particle may annihilate to any standard model particle as final state: Z, W± , g, l, q, ν [264].

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Production Yield of Muon-Induced Neutrons in Lead: Measured at the Modane Underground Laboratory by Holger Kluck


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