I discuss the exciting prospects for exploring a wide range of new physics at a low-energy muon collider. The physics possibilities for muon colliders (μC’s) are enormous. An incomplete list includes: front-end physics; Z physics; Higgs physics, especially s-channel factory production; precision mW , mt measurements; deep-inelastic physics, including lepto-quarks and contact interactions; super...

The MuCap experiment at the Paul Scherrer Institute has measured the rate Λ(S) of muon capture from the singlet state of the muonic hydrogen atom to a precision of 1%. A muon beam was stopped in a time projection chamber filled with 10-bar, ultrapure hydrogen gas. Cylindrical wire chambers and a segmented scintillator barrel detected electrons from muon decay. Λ(S) is determined from the differ...

A medium baseline search for ν µ → ν e oscillations at a ν beam from muon decays Abstract The accurate knowledge of the ¯ ν e (ν µ) beam produced in µ − decays and the absence of ν e (¯ ν µ) contamination, make a future muon storage ring the ideal place to look for ν µ → ν e (¯ ν µ → ¯ ν e) oscillations. Using a detector capable of electron and muon identification with charge discrimination (e....

Many astrophysical models predict a diffuse flux of high-energy neutrinos from active galactic nuclei and other extra-galactic sources. At muon energies above 1 TeV, the upward-going muon flux induced by neutrinos from active galactic nuclei is expected to exceed the flux due to atmospheric neutrinos. We have performed a search for this astrophysical neutrino flux by looking for upward-going mu...

The DELPHI detector at LEP, located 100 m underground, has been used to detect the multimuon bundles by cathode readout of its hadron calorimeter and its tracking detectors (TPC, muon chambers). The experimental apparatus allows us to study muon bundles originating from primary cosmic particles with energies in the interval 10 10 eV . The cosmic events registered during the years 1999 and 2000 ...

Project GRAND has the capability of measuring the angle and identity of single tracks of secondary muons at ground level. The array is comprised of 64 stations each containing eight proportional wire planes with a 50 mm steel absorber plate placed above the bottom two planes in each station. The added steel absorber plate allows muon tracks to be separated from the less massive electrons. Over ...

The MUCOOL facility is proposed to examine cooling techniques that could be used in a muon collider. The solenoidal beam channel before and after the cooling test section are instrumented to measure the beam emittance. This instrumentation channel includes a bent solenoid to provide dispersion and time projection chambers to measure the beam variables before and after the bend. The momentum of ...

Scattering muon radiography was proposed recently as a technique of detection and 3-d imaging for dense high-Z objects . High-energy cosmic ray muons are deflected in matter in the process of multiple Coulomb scattering . By measuring the deflection angles we are able to reconstruct the configuration of high-Z material in the object . We discuss the methods for information extraction from muon ...