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High-energy symmetry of bosonic open string theory in the light-like linear dilaton background

Chuan-Tsung Chan and Wei-Ming Chen

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High-energy limits of fixed-angle tree-level stringy scattering amplitudes in the light-like linear dilaton background are calculated. Treating the time component of the gradient of light-like dilaton field (V0) as a moduli parameter, we show that:
  1. there exists a new fixed-point (V0/E) in the moduli space of the bosonic open string theory, where a new high-energy symmetry among scattering amplitudes can be identified,
  2. this new symmetry can be interpreted as a deformation of the flat-space high-energy symmetry, as proposed by D. Gross.
Hence, our results give a concrete illustration about the relation between high-energy stringy symmetry and the background independent formulation of string theory.

Keywords

Conformal and W Symmetry

Bosonic Strings

Conformal Field Models in String Theory

Global Symmetries

 

E-print Number: 0905.2322

Cited: by |

Refers: to

PACS

11.25.-w Strings and branes

14.70.Pw Other gauge bosons

11.30.Qc Spontaneous and radiative symmetry breaking

11.15.Ex Spontaneous breaking of gauge symmetries

Subjects

Particle physics and field theory

Dates

Issue 11 (November 2009)

Received 8 June 2009, accepted for publication 9 October 2009

Published 18 November 2009



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