### Abstract

I describe a new method of obtaining gauge-symmetry transformation laws for the effective lagrangian of an arbitrary string theory. The method applies to exact as well as spontaneously broken gauge symmetries. The transformation laws, exact to all orders in α' are determined inductively in the number of fields by the corresponding off-shell Ward identities. The case of broken supersymmetry is examined in some detail.

Original language | English (US) |
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Pages (from-to) | 403-407 |

Number of pages | 5 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 231 |

Issue number | 4 |

DOIs | |

State | Published - Nov 16 1989 |

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### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

**Off-shell Ward identities and gauge symmetries in string theory.** / Porrati, Massimo.

Research output: Contribution to journal › Article

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*, vol. 231, no. 4, pp. 403-407. https://doi.org/10.1016/0370-2693(89)90683-7

}

TY - JOUR

T1 - Off-shell Ward identities and gauge symmetries in string theory

AU - Porrati, Massimo

PY - 1989/11/16

Y1 - 1989/11/16

N2 - I describe a new method of obtaining gauge-symmetry transformation laws for the effective lagrangian of an arbitrary string theory. The method applies to exact as well as spontaneously broken gauge symmetries. The transformation laws, exact to all orders in α' are determined inductively in the number of fields by the corresponding off-shell Ward identities. The case of broken supersymmetry is examined in some detail.

AB - I describe a new method of obtaining gauge-symmetry transformation laws for the effective lagrangian of an arbitrary string theory. The method applies to exact as well as spontaneously broken gauge symmetries. The transformation laws, exact to all orders in α' are determined inductively in the number of fields by the corresponding off-shell Ward identities. The case of broken supersymmetry is examined in some detail.

UR - http://www.scopus.com/inward/record.url?scp=0642369861&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0642369861&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(89)90683-7

DO - 10.1016/0370-2693(89)90683-7

M3 - Article

VL - 231

SP - 403

EP - 407

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 4

ER -