Angle-resolved photoelectron spectroscopy is an extremely powerful probe of materials to access the occupied electronic structure with energy and momentum resolution. However, it remains blind those dynamic states above Fermi level that determine technologically relevant transport properties. In this work we extend band mapping into unoccupied across entire Brillouin zone by using a state-of-th...

We review the effects of excited-state quantum phase transitions (ESQPTs) in interacting many-body systems with finite numbers collective degrees freedom. classify typical ESQPT signatures spectra energy eigenstates respect to underlying classical dynamics and outline a variety which they occur. describe thermodynamic dynamic consequences ESQPTs, like those microcanonical thermodynamics, quench...

This letter presents a study of prospects of searching for excited leptons during Run II of the Fermilab Tevatron. We concentrate on single and pair production of excited electrons in the photonic decay channel in one CDF/DØ detector equivalent for 2 fb −1. By the end of Run IIa, the limits should be easily extended beyond those set by LEP and HERA for excited leptons with mass above about 190 ...

Water excites intense controversy among researchers. Its crucial role in the natural and biological world is unquestioned but much of the agreement stops [1] when it comes to details. In particular, how water behaves at interfaces is a central mystery. Some interfaces are hydrophobic [2], but here we are interested in polar surfaces, which attract water. This situation is common in the natural ...

The double beta decay of 100Mo to the 01 and 2 + 1 excited states of 100Ru is studied using the NEMO 3 data. After the analysis of 8024 h of data the half-life for the two-neutrino double beta decay of 100Mo to the excited 01 state is measured to be T (2ν) 1/2 = [5.7 +1.3 −0.9(stat)±0.8(syst)]·10 y. The signal-to-background ratio is equal to 3. Information about energy and angular distributions...

A recent development in fluorescence microscopy is fluorescence lifetime imaging microscopy. In this type of microscopy the lifetime of the excited state of the fluorescent molecules is of interest rather than the amount of light emitted. By evaluating the response -emission lightof the system -fluorescent moleculesto a specific input signal -excitation light-, the fluorescent lifetime can be d...