Based on the bound state description of the muon and general relativistic covariant quantum field theory, we illustrate with a simple composite model that the observed deviation of (g − 2)μ can be a demonstration of the substructure of the muon and give the constraints on the radius of the muon in different cases of light constituents and heavy constituents. PACS number: 11.10.-z; 11.10.St; 13....

Considering the ISIS muon target as a reference, Geant4 simulations have been performed to optimise the target parameters with respect to muon and pion yield. Previous studies suggested that the muon production can be optimised by using a thin graphite slab target with an incident proton energy significantly lower than initially considered. The current paper discusses a possible target design f...

Geant4 has been used to estimate the rate, energy spectrum and angular distribution of cosmic ray muons at underground depths between 300 and 1000 m.w.e. The results agree well with those from the MUSIC program when the same surface spectrum is used. Care has been taken to use a parameterization of the surface spectrum which agrees well with data for the relevant energies. 1 Goals Knowledge of ...

This note describes how a future Fermilab proton driver [1] based on TESLA superconducting linac modules can perform as both the source of protons to produce the muons and as the accelerator of the muons to be used for a neutrino factory or muon collider. Recent advances in muon cooling [2] have the promise of muon emittances that are compatible with the 1300 MHz accelerating structures that ar...

Muon colliders and neutrino factories are attractive options for achieving the highest lepton-antilepton collision energies and the most precise measurements of the parameters of the neutrino mixing matrix. The performance and cost of these future facilities depends sensitively on how well a beam of muons can be cooled. The recent progress of muon-cooling prototype tests and design studies nour...

In this study we consider an extension of the Standard Model with a complex hypercharge zero triplet scalar. scenario one charged Higgs bosons remains purely and does not couple to fermions, making it elusive at colliders. Also physical pseudoscalar is pure purity makes suitable dark matter candidate without need discrete symmetries, unlike other extensions. The bounds from relic density direct...

Although originally designed by and for the use of the Neutron and X-ray communities, the flexibility of the NeXus data format makes it equally suitable for storing data gathered from µSR experiments. Furthermore, its use should open up the possibility of sharing software beyond the immediate muon community; giving access to the many tools that are already in existence for manipulating NeXus an...

This report describes the conceptual design of a particle detector that could be deployed underground for tracking cosmic-ray muons to enable tomographic reconstruction of the overlying ground and structures. The concept of cosmic-ray muon tomography has been known for a long time but seldom used in practice since the first demonstration. Developments in technology and methods of particle detec...

This report introduces a basic alignment scheme for the GEM muon detector. Optical straightness monitors are described, and their application discussed. Alternative alignment technologies are suggested and techniques are identified that can provide multipoint measurements. The problem of global alignment is posed, and several concepts are presented to attain the required precision. Some Alignme...