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Title: Path to metallicity: Synthesis of CNO elements in standard BBN

Abstract

We perform a reanalysis of the production of CNO elements in a standard big bang nucleosynthesis scenario. The CNO yields in BBN are suppressed by the low density of the plasma, Coulomb barrier effects and the short time scales involved. Yet, the inclusion of nuclides and reactions traditionally disregarded may lead to an increase relevant enough to affect the pristine Population III stars. After a critical reanalysis and upgrade of the nuclear network our results show no major discrepancies with the ones obtained using a smaller nuclear network. The robustness of the standard predictions--the early generation of star developed in a metal-free environment--is confirmed.

Authors:
 [1];  [2]; ; ;  [1];  [3]
  1. Dipartimento di Scienze Fisiche Universita di Napoli 'Federico II' and INFN Sezione di Napoli, via Cintia, 80126 Naples (Italy)
  2. (United States)
  3. Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, Illinois 60510-0500 (United States)
Publication Date:
OSTI Identifier:
21020441
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.75.087304; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASTROPHYSICS; CNO CYCLE; COSMOLOGY; COULOMB FIELD; ISOTOPES; NUCLEOSYNTHESIS; STARS

Citation Formats

Iocco, F., Kavli Institute for Particle Astrophysics and Cosmology PO Box 20450, Stanford, California 94309, Mangano, G., Miele, G., Pisanti, O., and Serpico, P. D. Path to metallicity: Synthesis of CNO elements in standard BBN. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.087304.
Iocco, F., Kavli Institute for Particle Astrophysics and Cosmology PO Box 20450, Stanford, California 94309, Mangano, G., Miele, G., Pisanti, O., & Serpico, P. D. Path to metallicity: Synthesis of CNO elements in standard BBN. United States. doi:10.1103/PHYSREVD.75.087304.
Iocco, F., Kavli Institute for Particle Astrophysics and Cosmology PO Box 20450, Stanford, California 94309, Mangano, G., Miele, G., Pisanti, O., and Serpico, P. D. Sun . "Path to metallicity: Synthesis of CNO elements in standard BBN". United States. doi:10.1103/PHYSREVD.75.087304.
@article{osti_21020441,
title = {Path to metallicity: Synthesis of CNO elements in standard BBN},
author = {Iocco, F. and Kavli Institute for Particle Astrophysics and Cosmology PO Box 20450, Stanford, California 94309 and Mangano, G. and Miele, G. and Pisanti, O. and Serpico, P. D.},
abstractNote = {We perform a reanalysis of the production of CNO elements in a standard big bang nucleosynthesis scenario. The CNO yields in BBN are suppressed by the low density of the plasma, Coulomb barrier effects and the short time scales involved. Yet, the inclusion of nuclides and reactions traditionally disregarded may lead to an increase relevant enough to affect the pristine Population III stars. After a critical reanalysis and upgrade of the nuclear network our results show no major discrepancies with the ones obtained using a smaller nuclear network. The robustness of the standard predictions--the early generation of star developed in a metal-free environment--is confirmed.},
doi = {10.1103/PHYSREVD.75.087304},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}