Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis

Details Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis

1997-08-11

arxiv.org/abs/hep-ph/9708303v1

Phys.Rev.Lett.80:22-25,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, Latex, 1 epsfig

Scientific paper

10.1103/PhysRevLett.80.22

We show that the presence of primordial stochastic (hypercharge) magnetic fields before the electroweak (EW) phase transition induces isocurvature fluctuations (baryon number inhomogeneities). Depending on the details of the magnetic field spectrum and on the particle physics parameters (such as the strength of the EW phase transition and electron Yukawa couplings) these fluctuations may survive until the Big Bang nucleosynthesis (BBN). Their lenghtscale may exceed the neutron diffusion length at that time, while their magnitude can be so large that sizable antimatter domains are present. This provides the possibility of a new type of initial conditions for non-homogeneous BBN or, from a more conservative point of view, stringent bounds on primordial magnetic fields.

Affiliated with

Also associated with

No associations

Rating

Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Primordial magnetic fields, anomalous isocurvature fluctuations and Big Bang nucleosynthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-633234