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SCATTERING OF NONCOMMUTATIVE STRINGS

SUPRIYA KAR

Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India

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and

SUMIT MAJUMDAR

Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India

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https://doi.org/10.1142/S0217751X06028989Cited by:12 (Source: Crossref)

Abstract

We obtain S-matrix, for the scattering of two string states, on a noncommutative D₃-brane in a path integral formalism. The framework provides a natural setting at Planck energy. It is argued that the effective theory is governed by two different length scales, respectively along the longitudinal and transverse directions. This in turn allows one to view an emerging semiclassical D-string in the theory. Interestingly, the S-matrix generalizes the case of a point-particle Planckian scattering studied in literatures. Our analysis may shed light on the issue of "imaginary string," originally raised by 't Hooft in a point-particle scattering at Planck energy.

Keywords:

PACS: 11.25.-w, 11.15.-q

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