Real-time Chern-Simons term for hypermagnetic fields

Laine M (2005)
JOURNAL OF HIGH ENERGY PHYSICS 2005(10): 056.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
If non-vanishing chemical potentials are assigned to chiral fermions, then a Chern-Simons term is induced for the corresponding gauge fields. In thermal equilibrium anomalous processes adjust the chemical potentials such that the coefficient of the Chern-Simons term vanishes, but it has been argued that there are non-equilibrium epochs in cosmology where this is not the case and that, consequently, certain fermionic number densities and large-scale (hypermagnetic) field strengths get coupled to each other. We generalise the Chern-Simons term to a real-time situation relevant for dynamical considerations, by deriving the anomalous Hard Thermal Loop effective action for the hypermagnetic fields, write down the corresponding equations of motion, and discuss some exponentially growing solutions thereof.
Stichworte
Chern-Simons theories; thermal field theory; baryogenesis; global symmetries
Erscheinungsjahr
2005
Zeitschriftentitel
JOURNAL OF HIGH ENERGY PHYSICS
Band
2005
Ausgabe
10
Art.-Nr.
056
ISSN
1126-6708
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/1601644

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Laine M. Real-time Chern-Simons term for hypermagnetic fields. JOURNAL OF HIGH ENERGY PHYSICS. 2005;2005(10): 056.
Laine, M. (2005). Real-time Chern-Simons term for hypermagnetic fields. JOURNAL OF HIGH ENERGY PHYSICS, 2005(10), 056. https://doi.org/10.1088/1126-6708/2005/10/056
Laine, Mikko. 2005. “Real-time Chern-Simons term for hypermagnetic fields”. JOURNAL OF HIGH ENERGY PHYSICS 2005 (10): 056.
Laine, M. (2005). Real-time Chern-Simons term for hypermagnetic fields. JOURNAL OF HIGH ENERGY PHYSICS 2005:056.
Laine, M., 2005. Real-time Chern-Simons term for hypermagnetic fields. JOURNAL OF HIGH ENERGY PHYSICS, 2005(10): 056.
M. Laine, “Real-time Chern-Simons term for hypermagnetic fields”, JOURNAL OF HIGH ENERGY PHYSICS, vol. 2005, 2005, : 056.
Laine, M.: Real-time Chern-Simons term for hypermagnetic fields. JOURNAL OF HIGH ENERGY PHYSICS. 2005, : 056 (2005).
Laine, Mikko. “Real-time Chern-Simons term for hypermagnetic fields”. JOURNAL OF HIGH ENERGY PHYSICS 2005.10 (2005): 056.
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arXiv: hep-ph/0508195

Inspire: 690219

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