We describe in detail an improved standard solar model which has been used to calculate the fluxes of standard solar neutrinos. It includes premain sequence evolution, element diffusion, partial ionization effects, and all the possible nuclear reactions between the main elements. It uses updated values for the initial solar element abundances, the solar age, the solar luminosity, the nuclear re...

Atmospheric deposition of aerosols transported from the continents is an important source nutrient and pollutant trace elements (TEs) to surface ocean. During U.S. GEOTRACES GP15 Pacific Meridional Transect between Alaska Tahiti (September–November 2018), aerosol samples were collected over North equatorial analyzed for a suite TEs, including Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb. Sampling ...

I derive completely analytically the time evolution and final abundances of the light elements (up to 7Be) formed in the big-bang nucleosynthesis.This highlights an interesting physics taking place during the formation of light elements in the early universe.

We present S factor data obtained from the Coulomb dissociation of 83 MeV/nucleon 8B, and analyze 7Be longitudinal momentum distributions measured at 44 and 81 MeV/nucleon using a potential model, first-order perturbation theory, and dynamical solution of the time-dependent Schrödinger equation. Comparing our results with independent continuum-discretized coupled channels calculations, we study...

The 3He(α,γ)7Be process is a key reaction in both Big-Bang nucleosynthesis and p-p chain of Hydrogen Burning in Stars. A new measurement of the 3He(α,γ)7Be cross section has been performed at the INFN Gran Sasso underground laboratory by both the activation and the prompt γ detection methods. The present work reports full details of the prompt γ detection experiment, focusing on the determiPrep...

We calculate the cross sections of the elastic and inelastic breakup modes for the inclusive breakup reaction 28Si(8B,7Be) at beam energies between 10 40 MeV/nucleon within a direct fragmentation model formulated in the framework of the post form distorted-wave Born-approximation. In contrast to the case of the stable isotopes, the inelastic breakup mode is found to contribute only up to 30% to...

The significant differences in the activities of 210Pb, 210Bi, 210Po and cosmogenic 7Be and 22Na radionuclides in the urban aerosol samples collected in the summers 2010 and 2011 in the Lodz city of Poland were observed. Simultaneous measurement of these radionuclides, after a simple modification of the one compartment model, allows us to calculate both: the corrected aerosol residence times in...

The new project GENIUS will cover a wide range of the parameter space of predictions of SUSY for neutralinos as cold dark matter. Further it has the potential to be a real-time detector for low-energy (pp and 7Be) solar neutrinos. A GENIUS Test Facility has just been funded and will come into operation by end of 2002.