Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-06-03
Phys.Rev. D61 (2000) 063502
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages in Revtex style, 8 figures
Scientific paper
10.1103/PhysRevD.61.063502
At finite hyperconductivity and finite fermionic density the flux lines of long range hypermagnetic fields may not have a topologically trivial structure. The combined evolution of the chemical potentials and of pseudoscalar fields (like the axial Higgs), possibly present for temperatures in the TeV range, can twist the hypercharge flux lines, producing, ultimately, hypermagnetic knots (HK). The dynamical features of the HK depend upon the various particle physics parameters of the model (pseudoscalar masses and couplings, strength of the electroweak phase transition, hyperconductivity of the plasma) and upon the magnitude of the primordial flux sitting in topologically trivial configurations of the hypermagnetic field. We study different cosmological scenarios where HK can be generated. We argue that the fermionic number sitting in HK can be released producing a seed for the Baryon Asymmetry of the Universe (BAU) provided the typical scale of the knot is larger than the diffusivity length scale. We derive constraints on the primordial hypermagnetic flux required by our mechanism and we provide a measure of the parity breaking by connecting the degree of knottedness of the flux lines to the BAU. We rule out the ordinary axion as a possible candidate for production (around temperatures of the order of the GeV) of {\em magnetic} knots since the produced {\em electromagnetic} helicity is negligible (for cosmological standard) if the initial amplitude of the axion oscillations is of the order of the Peccei-Quinn breaking scale.
No associations
LandOfFree
Hypermagnetic Knots, Chern-Simons Waves and the Baryon Asymmetry 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 Hypermagnetic Knots, Chern-Simons Waves and the Baryon Asymmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hypermagnetic Knots, Chern-Simons Waves and the Baryon Asymmetry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-126903