### Abstract

A four-dimensional N = 2 supersymmetric non-linear sigma-model with the Eguchi-Hanson (ALE) target space and a non-vanishing central charge is rewritten to a classically equivalent and formally renormalizable gauged 'linear' sigma-model over a non-compact coset space in N = 2 harmonic superspace by making use of an N = 2 vector gauge superfield as the Lagrange multiplier. It is then demonstrated that the N = 2 vector gauge multiplet becomes dynamical after taking into account one-loop corrections due to quantized hypermultiplets. This implies the appearance of a composite gauge boson, a composite chiral spinor doublet and a composite complex Higgs particle, all defined as the physical states associated with the propagating N = 2 vector gauge superfield. The composite N = 2 vector multiplet is further identified with the zero-modes of a superstring ending on a D6-brane. Some non-perturbative phenomena, such as the gauge symmetry enhancement for coincident D6-branes and the Maldacena conjecture, turn out to be closely related to our NLSM via M-theory. Our results support a conjecture about the composite nature of superstrings ending on D-branes.

Original language | English |
---|---|

Pages (from-to) | 181-217 |

Number of pages | 37 |

Journal | Nuclear Physics B |

Volume | 544 |

Issue number | 1-2 |

Publication status | Published - 5 Apr 1999 |

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### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

*Nuclear Physics B*,

*544*(1-2), 181-217.

**Dynamical generation of gauge and Higgs bosons in N = 2 supersymmetric non-linear sigma-models.** / Ketov, Sergei V.

Research output: Contribution to journal › Article

*Nuclear Physics B*, vol. 544, no. 1-2, pp. 181-217.

}

TY - JOUR

T1 - Dynamical generation of gauge and Higgs bosons in N = 2 supersymmetric non-linear sigma-models

AU - Ketov, Sergei V.

PY - 1999/4/5

Y1 - 1999/4/5

N2 - A four-dimensional N = 2 supersymmetric non-linear sigma-model with the Eguchi-Hanson (ALE) target space and a non-vanishing central charge is rewritten to a classically equivalent and formally renormalizable gauged 'linear' sigma-model over a non-compact coset space in N = 2 harmonic superspace by making use of an N = 2 vector gauge superfield as the Lagrange multiplier. It is then demonstrated that the N = 2 vector gauge multiplet becomes dynamical after taking into account one-loop corrections due to quantized hypermultiplets. This implies the appearance of a composite gauge boson, a composite chiral spinor doublet and a composite complex Higgs particle, all defined as the physical states associated with the propagating N = 2 vector gauge superfield. The composite N = 2 vector multiplet is further identified with the zero-modes of a superstring ending on a D6-brane. Some non-perturbative phenomena, such as the gauge symmetry enhancement for coincident D6-branes and the Maldacena conjecture, turn out to be closely related to our NLSM via M-theory. Our results support a conjecture about the composite nature of superstrings ending on D-branes.

AB - A four-dimensional N = 2 supersymmetric non-linear sigma-model with the Eguchi-Hanson (ALE) target space and a non-vanishing central charge is rewritten to a classically equivalent and formally renormalizable gauged 'linear' sigma-model over a non-compact coset space in N = 2 harmonic superspace by making use of an N = 2 vector gauge superfield as the Lagrange multiplier. It is then demonstrated that the N = 2 vector gauge multiplet becomes dynamical after taking into account one-loop corrections due to quantized hypermultiplets. This implies the appearance of a composite gauge boson, a composite chiral spinor doublet and a composite complex Higgs particle, all defined as the physical states associated with the propagating N = 2 vector gauge superfield. The composite N = 2 vector multiplet is further identified with the zero-modes of a superstring ending on a D6-brane. Some non-perturbative phenomena, such as the gauge symmetry enhancement for coincident D6-branes and the Maldacena conjecture, turn out to be closely related to our NLSM via M-theory. Our results support a conjecture about the composite nature of superstrings ending on D-branes.

UR - http://www.scopus.com/inward/record.url?scp=0033525997&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033525997&partnerID=8YFLogxK

M3 - Article

VL - 544

SP - 181

EP - 217

JO - Nuclear Physics B

JF - Nuclear Physics B

SN - 0550-3213

IS - 1-2

ER -