Implications of cosmic string-induced density fluctuations at the quark-hadron transition

Details Implications of cosmic string-induced density fluctuations at the quark-hadron transition Implications of cosmic string-induced density fluctuations at the quark-hadron transition

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003prama..61.1039l&link_type=abstract

Pramana, vol. 61, Issue 5, p.1039

Physics

Cosmic String, Structure Formation, Quark-Hadron Transition.

Scientific paper

We show that cosmic strings moving through the plasma at the time of a first-order quark-hadron transition in the early universe generate baryon inhomogeneities, which can survive till the nucleosynthesis epoch. We find out how these inhomogeneities actually affect the calculated values of the light element abundances. Recently a wealth of observational data from various experiments have helped to reduce the uncertainties in the values of these abundances. Using these we show that it is possible to derive constraints in the presence of cosmic strings during the quark-hadron transition.

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