1993/08/13 by E. E. Donets, D. V. Gal'tsov, Donets, E. E. +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9308068
8 pages; CINVESTAV-GRG-10, July 93
arxiv created 1993/08/13 · arxiv updated 2009/11/30
An infinite family of cornucopions is found within the SU(2)× U(1) sector of the 4--d heterotic string low-energy theory, the extremal U(1) magnetic dilatonic black hole being the lowest energy state. Non-abelian cornucopions are interpreted as sphalerons associated with potential barriers separating topologically distinct Yang-Mills vacua on the U(1) cornucopion background. A mass formula for non-abelian dilatonic black holes is derived, and the free energy is calculated through the Euclidean action.