Note on the Nature of Cosmic-ray Particles

Neddermeyer, Seth H.; Anderson, Carl D.

doi:10.1016/b978-0-08-016724-4.50018-5

Cited by 11 publications

(14 citation statements)

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“…The results were published immediately [49,50]. The authors identified the heavier meson with the particle predicted by Hideki Yukawa [51] and the secondary particle as the one detected in 1937 by Anderson and Neddermeyer [52] and independently by Street and Stevenson [53].…”

Section: The Discovery Of the Pion And Its Consequences (1946-1959)mentioning

confidence: 93%

CR Physics in Brazil

Dobrigkeit¹

2011

Proceedings of 4th School on Cosmic Rays and Astrophysics — PoS(CRA School)

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Cosmic rays have long been a topic of intense research activities in Brazil. Due to the contagious enthusiasm and excellence of the men who introduced this field in the country around 1930, a tradition in cosmic ray physics was built and over the past eighty years there have always been one or more groups of scientists dedicating their efforts building detectors, performing experiments and obtaining top results in this research area. Although many physicists spent their lives working in cosmic ray physics in Brazil, one must acknowledge the enormous contribution of Gleb Wataghin and Cesar Lattes to making this one of Brazil's most traditional areas of research in Physics. Wataghin and Lattes are the main protagonists of the story of cosmic ray physics in Brazil.

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Section: The Discovery Of the Pion And Its Consequences (1946-1959)mentioning

confidence: 93%

CR Physics in Brazil

Dobrigkeit¹

2011

Proceedings of 4th School on Cosmic Rays and Astrophysics — PoS(CRA School)

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“…The muon was discovered in cosmic rays in 1936 [1]. At that time, it was considered that the muon would decay to an electron and a neutrino; however, this supposition was later found to be inconsistent with experimental observation.…”

Section: Muon In Particle Physicsmentioning

confidence: 93%

New cLFV search experiments using the mu-e conversion process

Mihara¹

2011

Proceedings of the XTH Nicola Cabibbo International Conference on Heavy Quarks and Leptons — PoS(HQL 2010)

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Charged lepton-flavor violation (cLFV) searches are thought to be sensitive to a new physics beyond the standard model. Recently, the LHC (the high-energy frontier) and MEG (which has performed the highest sensitive measurement of a muon-rare decay) started physics data acquisition and are expected to provide exciting results in the near future. In this presentation, future muon-based cLFV experiments that are complementary to these experiments will be reviewed along with a brief introduction to the physics motivation of cLFV searches.

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“…The discovery of the muon (Neddermeyer and Anderson, 1937) entailed experiments to characterise its propagation through different materials. The fact that muons lose energy proportionally to the mass density of the traversed matter (see Olive et al, 2014) inspired the idea of using their attenuation to retrieve information on the traversed material.…”

Section: Introductionmentioning

confidence: 99%

The effect of rock composition on muon tomography measurements

Lechmann¹,

Mair²,

Ariga³

et al. 2018

Preprint

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Abstract.In recent years, the use of radiographic inspection with cosmic-ray muons has spread into multiple research and 10 industrial fields. This technique is based on the high-penetration power of cosmogenic muons. Specifically, it allows the resolution of internal density structures of large scale, geological objects through precise measurement of the muon absorption rate. So far in many previous works, this muon absorption rate has been considered to depend solely on the density of traversed material (under the assumption of a standard rock) but the variation in chemical composition has not been taken seriously into account. However, from our experience with muon tomography in Alpine environments we find 15 that this assumption causes a substantial bias on the muon flux calculation, particularly where the target consists of high { 2 ⁄ } (like basalts) or low { 2 ⁄ } (e.g. dolomites) rocks and where the material thickness exceeds 300 metres. In this paper we derive an energy loss equation for different minerals and we additionally derive a related equation for mineral assemblages that can be used for any rock type on which mineralogical data is available. Thus, for muon tomography experiments in which high/low { 2 ⁄ } rock thicknesses can be expected, it is advisable to plan an accompanying geological 20 field campaign to determine a realistic rock model.

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Note on the Nature of Cosmic-ray Particles

Cited by 11 publications

References 0 publications

CR Physics in Brazil

CR Physics in Brazil

New cLFV search experiments using the mu-e conversion process

The effect of rock composition on muon tomography measurements

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