Asymmetrically twisted strings

Abstract

In this letter a new class of twisted strings is presented, with an asymmetry between the holomorphic and antiholomorphic sectors parametrized by an integer $N$. Their physical content is given by the massless resonances of the closed string plus the mass-level $N$ spectrum of the open string. The appeal of this model is the singling out of the (higher spin) massive levels of string theory together with their self/gauge/gravity interactions. Motivated by the original tree level Kawai-Lewellen-Tye relation for closed strings, its asymmetrically twisted version at four points is conjectured and shown to naturally interpolate with conventional and twisted strings. The resulting four-point amplitudes have a generalized Virasoro-Shapiro dressing factor.

6 pages. v2: added discussion on high energy limits. Published version

References in corpus (5)

• Combinatorics and Topology of Kawai-Lewellen-Tye Relations
• Higher Spin Scattering in Superstring Theory
• A String Theory Which Isn't About Strings
• Scattering Massive String Resonances through Field-Theory Methods
• Connecting the ambitwistor and the sectorized heterotic strings

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