A very compact architecture has been developed for the first level Muon Trigger of the LHCb experiment that processes 40 × 10 proton-proton collisions per second. For each collision, it receives 3.2 kBytes of data and it finds straight tracks within a 1.2 μs latency. The trigger implementation is massively parallel, pipelined and fully synchronous with the LHC clock. It relies on 248 high densi...

Muon spin relaxation measurements in iron-oxypnictide systems have revealed: (1) commensurate long-range order in undoped LaFeAsO; (2) a Bessel function line shape in LaFeAs(O0.97F0.03) which indicates possible incommensurate or stripe magnetism; (3) anomalous weak magnetism existing in superconducting LaFePO, CeFeAs(O0.084F0.16), and NdFeAs(O0.88F0.12) but absent in superconducting LaFeAs(O0.9...

We describe here SuperIso which is a public program for evaluation of flavor physics observables as well as the muon anomalous magnetic moment and the dark matter relic density in the Standard Model (SM), general two-Higgs-doublet model (2HDM), minimal supersymmetric Standard Model (MSSM) and next to minimal supersymmetric Standard Model (NMSSM). A few examples of the analysis and the results o...

The superfluid density, rho{s}, of the iron chalcogenide superconductor, FeSe1-x, was studied as a function of pressure by means of muon-spin rotation. The analysis of rho{s}(T) within the two-gap scheme reveals that the effect on both, the transition temperature T{c} and rho{s}(0), is entirely determined by the band(s) where the large superconducting gap develops, while the band(s) with the sm...

Similar to the electron, the muon is an elementary particle classified as a lepton with a negative charge and half-spin. Naturally-occurring muons are created due to cosmic rays and travel at relativistic speeds and thus feel the effects of time dilation. Due to this the lifetime of the muon is heavily dependent on the speed at which it is moving. We will discuss the lifetime and decay of the m...

We perform detailed muon spin rotation ($\ensuremath{\mu}\mathrm{SR}$) measurements in the classic antiferromagnet ${\mathrm{Fe}}_{2}{\mathrm{O}}_{3}$ and explain spectra by considering dynamic population dissociation of charge-neutral muon-polaron complexes. show that states ${\mathrm{Fe}}_{2}{\mathrm{O}}_{3}$, despite lacking signatures typical muonium centers nonmagnetic materials, have a si...

Backgrounds arising from muon decay at a 4 TeV muon collider are summarized, and some implications for a muon collider detector are discussed. Ideas on how to cope with the significant background levels are also described.

Abstract The summit craters system represents the point of maximum expression persistent tectonic activity at Mount Etna volcano. Muography Volcano (MEV) project began in 2016 as a pilot for successive installation permanent muographic observatory. It aims to demonstrate detector’s capability observe density anomalies inside volcanic edifice and monitor their time evolution. first muon telescop...

A muon collider as well as a neutrino factory requires a large number of muons with a kinetic energy of 50GeV or more. Muon survival demands a high gradient linac. The large transverse and longitudinal emittance of the muon beam coming from a muon cooling system implies the need for a large acceptance, acceleration system. These two requirements point clearly to a linac based on superconducting...

Muon Colliders would usher in a new era of scientific investigation in the field of high energy particle physics. The cooling of muon beams is proving to be the greatest obstacle in the realization of a Muon Collider. Monte Carlo simulations of a muon cooling scheme based on Frictional Cooling were performed. Critical issues, which require further study, relating to the technical feasibility of...