The4He(α,p)7Li,7Li*0.478 reaction near threshold

Differential cross sections for the reaction⁴He(α,p)⁷Li,⁷Li^{* 0.478MeV} have been obtained at nine energies between 37 and 43 MeV in the laboratory system. It is shown that these results are consistent with a non zero inelasticity in thel=4 partial wave of the entrance channel. Comparisons with the reaction cross section for the⁴He-α interaction are discussed.     

Anomaly in the p-d bremsstrahlung near the break-up threshold

Measurements of p-d bremsstrahlung cross sections performed by detecting the outgoing particles in coincidence at 20°-20° in the laboratory system, show a marked energy dependence near the break-up threshold, at variance with the behaviour far from it as seen from other experiments.     

Production of high energy deuterons in the reaction:3He+3He→4He+2H+e ++v

Experiments on the reaction:³He+³He→⁴He+²He using a single four detector telescope have shown evidence for the production of deuteron pulses, consistent with the²He→²H+e⁺+v fusion reaction in the final state. New measurements on the same reaction using improved techniques viz.A) a windowless³He gas target andB) α- d correlation detection with 5 ns resolving time and antipileup circuitry have been performed. Calibrations were obtained from the⁷Li+³He→²H+⁴He+⁴He reaction spectra. The correlation angles were 30° and 97° for the alphas and deuterons respectively. Deuteron pulses have been observed, correlated with alpha particles. A cross section of (1.7 ±0.5)nbsr^?1MeV^?1 was obtained consistent with previous measurements using a single telescope.     

FTIR Emission Spectra, Molecular Constants, and Potential Curve of Ground State GeO

Extensive new high-temperature, high-resolution FTIR emission spectroscopy measurements for the five common isotopomers of GeO are combined with previous diode laser and microwave measurements in combined isotopomer analyses. New Dunham expansion parameters and an accurate analytical potential energy function are determined for the ground X1Sigma+ state. Copyright 1999 Academic Press.