Pair creation in an electric flux tube and chiral anomaly
- International Economics and Politics, Nishogakusha University, Ohi Kashiwa, Chiba 277-8585 (Japan)
Using the chiral anomaly, we discuss the pair creation of massless fermions under the effect of a magnetic field B-vector when an electric flux tube E-vector parallel to B-vector is switched on. The tube is axially symmetric and infinitely long. For the constraint B>>E, we can analytically obtain the spatial and temporal behaviors of the number density of the fermions, the azimuthal magnetic field generated by the fermions, and so on. We find that the lifetime t{sub c} of the electric field becomes shorter as the width of the tube becomes narrower. Applying it to the plasma in high-energy heavy-ion collisions, we find that the color electric field decays quickly such that t{sub c}{approx_equal}Q{sub s}{sup -1}, in which Q{sub s} is the saturation momentum.
- OSTI ID:
- 21296471
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 80, Issue 5; Other Information: DOI: 10.1103/PhysRevC.80.052202; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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