Several attractive theories predict the existence of mirror fermions. There is a good theoretical reason to expect that the lightest mirror fermions might have relatively long lifetimes. We explore the experimental consequences of such a possibility, focusing on mirror lepton production at the SLC near the Z” resonance. We find that by going slightly off resonance or by polarizing the electron ...

Ž . The layer dependent evolution of the benzenerAg 111 unoccupied electronic structure and electron dynamics have been investigated with time and angle resolved two photon photoemission. With the exception of one peak in the benzene Ž . multilayer photoelectron kinetic energy spectra, all excitations possess free electron-like dispersions parallel to the Ag 111 surface, consistent with image e...

Measurements of positron lifetime and hydrogen solubility were made in deformed polycrystalline Pd to investigate thermally-activated recovery. A strong correlation as a function of isochronal annealing temperature was observed between trapped-positron lifetime and the enhancement of hydrogen solubility due to solute binding at dislocations. This correlation is attributed to the simultaneous re...

In this paper, a new lifetime class with decreasing failure rate is introduced by compounding truncated binomial distribution with any proper continuous lifetime distribution. The properties of the proposed class are discussed, including a formal proof of its probability density function, distribution function and explicit algebraic formulae for its reliability and failure rate functions. A sim...

With the rise and precision of current medical procedures and the healthy lifestyles of many individuals turning towards a healthier lifestyle, the average lifetime expectancy is ever increasing [1]. Doctors are able to better diagnose and treat patients while the ability of individuals to cope and recover from illnesses is staggering. Technological advances incorporated with vast and accurate ...