Experimental and theoretical photoionization cross sections for Se+from 18 eV to 31 eV

Inferring Neutrino Cross Sections Above 10 eV

Extremely high energy neutrinos propagating in the atmosphere or in the Earth can originate horizontal or upgoing air-showers, respectively. We calculate the acceptances (event rate/flux) for detecting both types of events by fluorescence detectors, both spacebased as with the EUSO and OWL proposals, and ground-based, as with Auger, HiRes and Telescope Array. We depict them as a function of the...

The dynamics of the hydrogen exchange reaction at 2.20 eV collision energy: Comparison of experimental and theoretical differential cross sections

Double Photoionization of Magnesium From Threshold to 54 eV

Direct double photoionization of atoms in which two electrons are simultaneously emitted is of high interest for understanding electron correlations. Many investigations of double photoionization have focused on helium -the textbook example for double ionization with its two electrons. Double-photoionization experiments on atoms beyond He are still sparse and often less sophisticated due to the...

Triple Photoionization of Lithium Up To 650 eV

The doubleand triple-photoionization process in which two (or three) electrons are simultaneously emitted from an atom is of fundamental importance for the understanding of electron correlation. The triple-to-single photoionization ratio is a convenient way to quantify this correlation and to investigate its photon energy dependence. Many experimental and theoretical investigations have dealt w...

Photoionization of atmospheric aerosol constituents and precursors in the 7-15 eV energy region: experimental and theoretical study.

Photoionization mass spectrometry (PIMS) has been used to study the dissociative ionization of three anthropogenic atmospheric aerosol precursors (o-xylene, 2-methylstyrene, indene) and five of their main atmospheric degradation products (o-tolualdehyde, 2-methylphenol, o-toluic acid, phthalic acid, and phthaldialdehyde). Ionization and fragment appearance energies have been experimentally dete...