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Hosotani model in closed-string theory

K Shiraishi

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The Hosotani mechanism (1983) in the closed-string theory with current algebra symmetry is described by the (old covariant) operator method. The author compares the gauge symmetry breaking mechanism in a string theory which contains SU(2) symmetry originated from current algebra with the one in an equivalent compactified closed-string theory. The author also investigates the difference between the Hosotani mechanism and the Higgs mechanism in closed-string theories by calculation of a four-point amplitude of 'Higgs' bosons at tree level.


PACS

11.25.Sq Nonperturbative techniques; string field theory

11.15.Ex Spontaneous breaking of gauge symmetries

11.10.Ef Lagrangian and Hamiltonian approach

MSC

83E30 String and superstring theories (See also 81T30)

81R40 Symmetry breaking

Subjects

Particle physics and field theory

Dates

Issue 1 (January 1990)



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