@inproceedings{fbbfc7d02bf648d79c3e6951f937ca87,
title = "Inhomogeneous Primordial Magnetic Field Strength and Its Impact on Primordial Nucleosynthesis",
abstract = "We investigate the effect on the light element abundances from the presence of a primordial magnetic field (PMF) whose strength is spatially inhomogeneous. By assuming an uniform total energy density with a gaussian distribution of field strength, we find that domains of different temperatures exist in the BBN epoch due to variations in the local PMF. As a result, the effective distribution function of particle velocities averaged over domains of different temperatures deviates from the Maxwell-Boltzmann distribution. We perform BBN calculations including this effect and find that the 7Li abundance is significantly reduced. We also discuss the possibility that the baryon-to-photon ratio decreased after the BBN epoch. In this case, if the ratio during BBN was larger than the cosmic microwave background constraint, all produced light elements are consistent with observational data.",
author = "Yudong Luo and Toshitaka Kajino and Motohiko Kusakabe and Mathews, \{Grant J.\}",
note = "Publisher Copyright: {\textcopyright} 2019, Springer Nature Switzerland AG.; 15th International Symposium on Nuclei in the Cosmos, NIC 2018 ; Conference date: 24-06-2018 Through 29-06-2018",
year = "2019",
doi = "10.1007/978-3-030-13876-9\_75",
language = "英语",
isbn = "9783030138752",
series = "Springer Proceedings in Physics",
publisher = "Springer Science and Business Media, LLC",
pages = "401--403",
editor = "Alba Formicola and Matthias Junker and Lucio Gialanella and Gianluca Imbriani",
booktitle = "Nuclei in the Cosmos XV",
address = "美国",
}