منابع مشابه
Primordial hypermagnetic fields and the triangle anomaly
The high-temperature plasma above the electroweak scale ;100 GeV may have contained a primordial hypercharge magnetic field whose anomalous coupling to the fermions induces a transformation of the hypermagnetic energy density into fermionic number. In order to describe this process, we generalize the ordinary magnetohydrodynamical equations to the anomalous case. We show that a not completely h...
متن کاملPrimordial Hypermagnetic Fields and Triangle Anomaly
The high-temperature plasma above the electroweak scale ∼ 100 GeV may have contained a primordial hypercharge magnetic field whose anomalous coupling to the fermions induces a transformation of the hypermagnetic energy density into fermionic number. In order to describe this process, we generalize the ordinary magnetohydrodynamical equations to the anomalous case. We show that a not completely ...
متن کاملParticle creation via relaxing hypermagnetic knots
We demonstrate that particle production for fermions coupled chirally to an Abelian gauge field like the hypercharge field is provided by the microscopic mechanism of level crossing. For this purpose we use recent results on zero modes of Dirac operators for a class of localized hypermagnetic knots. ∗)email address: [email protected], [email protected] ∗∗)email address: [email protected]...
متن کاملElectroweak baryogenesis and primordial hypermagnetic fields
The origin of the matter-antimatter asymmetry of the universe remains one of the outstanding questions yet to be answered by modern cosmology and also one of only a handful of problems where the need of a larger number of degrees of freedom than those contained in the standard model (SM) is better illustrated. An appealing scenario for the generation of baryon number is the electroweak phase tr...
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In a globally neutral plasma, the transversality of the magnetic fields implies, at high conductivity, the conservation of both magnetic flux and magnetic helicity. The plasma element evolves always glued together with magnetic flux lines whose number of associated knots and twists does not change . The energetical and the topological properties of the magnetic flux lines are conserved in the s...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2000
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.61.063004