We propose to use stopping cosmic-ray muons in the energy calibration of planned and deployed large underwater detectors. The method is based on the proportionality between the incident muon energy and the length of the muon path before it stops. Simultaneous measurements of the muon path and the amplitude of the signal from the photomultiplier tubes allow a relation between the energy deposite...

We present a new one-dimensional calculation of low and intermediate energy atmospheric muon and neutrino fluxes, using up-to-date data on primary cosmic rays and hadronic interactions. The existing agreement between calculated muon fluxes and the data of the CAPRICE 94 muon experiment provides an evidence in favor of the validity of our description of hadronic interactions and shower developme...

The characteristics of the partial nuclear muon capture with massive left-handed Dirac neutrino and relativistic component of the muon wave function have been derived. The multipole amplitudes are given as a function of neutrino mass parameter and reduced nuclear matrix elements which are modified by the small component of the muon wave function. As an example, the capture rate, asymmetry and p...

a * on behalf of the µLan † and µCap ‡ Collaborations. The µLan experiment at the Paul Scherrer Institute will measure the lifetime of the positive muon with a precision of 1 ppm, giving a value for the Fermi coupling constant GF at the level of 0.5 ppm. Meanwhile, by measuring the observed lifetime of the negative muon in pure hydrogen, the µCap experiment will determine the rate of muon captu...

The origin and structure of the Earth's crust is still a major question. Traditionally the nearby crust of the Earth has been explored in great detail with echo-sounding or gravimetric techniques. Current measurements are based largely on these techniques, which has intrinsic uncertainties. In the present talk, a novel method with cosmic-ray muons to create a direct snapshot of the density prof...

Structure of leptons and hadrons within the framework of electrodynamics is considered. Muon and tau-lepton have the structure of 3 electrons. The mass of muon is defined by the section of two-photon annihilation. The mass of tau-lepton is defined by the section of three-photon annihilation. Hadrons are characterized by the structure of 5 electrons. The masses of hadrons are defined via the mas...

In this paper we present the results of GEANT4 simulations of the production of surface muons as a function of energy of the incident protons on a graphite target. A validation of the GEANT4 hadronic physics models has been performed by comparing the results with experimental data from the Lawrence Radiation Laboratory, United States. Considering the ISIS muon target as a reference, simulations...

Seasonal Variations in Muon Rate are caused by large scale changes in atmospheric conditions throughout the year. As atmospheric temperature and density vary across the seasons, so do the absorption rates of cosmic ray secondaries in the atmosphere. The IceCube neutrino detector array can track both large and small scale variations in atmospheric muon rate and daily, detailed weather data is av...

The cross-section for v + N-p + anything is given by PCAC when the muon emerges in the forward direction and its mass is neglected. We estimate corrections to this result due to the muon mass and for slightly non-forward scattering. The PCAC contribution is sizable only over a restricted region of muon transverse momentum and inelasticity. We discuss the implications of these restrictions for e...

One of the key component of the Neutrino Factory under study at CERN is the muon cooling channel based on ionization cooling. To explore the parameter-space and the efficiency of the design proposed at CERN, a muon cooling experiment. This note reports a possible layout of a transfer line delivering a primary proton beam onto a target to generate the muon beam. The details of the new transfer l...