PArthENoPE: Public Algorithm Evaluating the Nucleosynthesis of Primordial Elements

Pisanti, O. ; Cirillo, A. ; Esposito, S. ; Iocco, F. ; Mangano, G. ; Miele, G. ; Serpico, P.D.

Stanford Linear Accelerator Center

关键词: Differential Equations;    Cosmological Constant;    Neutrinos;    72 Physics Of Elementary Particles And Fields;    Baryons;   

DOI  :  10.2172/903003
RP-ID  :  SLAC-PUB-12488
RP-ID  :  AC02-76SF00515
RP-ID  :  903003

美国|英语

来源: UNT Digital Library

【 摘 要 】

We describe a program for computing the abundances of light elements produced during Big Bang Nucleosynthesis which is publicly available at http://parthenope.na.infn.it/. Starting from nuclear statistical equilibrium conditions the program solves the set of coupled ordinary differential equations, follows the departure from chemical equilibrium of nuclear species, and determines their asymptotic abundances as function of several input cosmological parameters as the baryon density, the number of effective neutrino, the value of cosmological constant and the neutrino chemical potential.