Microscopic unitary description of tidal excitations in high-energy string-brane collisions

AuthorCount:4;
QC 20131217
The eikonal operator was originally introduced to describe the effect A tidal excitations on higher-genus elastic string amplitudes at high energy. In this paper we provide a precise interpretation for this operator through the explicit tree-level calculation of generic inelastic transitions between closed strings as they scatter off a stack of parallel Dp-branes. We perform this analysis both in the light-cone gauge, using the Green-Schwarz vertex, and in the covariant formalism, using the Reggeon vertex operator. We also present a detailed discussion of the high-energy behaviour of the covariant string amplitudes, showing how to take into account the energy factors that enhance the contribution of the longitudinally polarized massive states in a simple way.

Di Vecchia, PaoloKTH,Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),University of Copenhagen, Denmark,Nordic Institute for Theoretical Physics NORDITA(Swepub:kth)u1yv14lp (author)
Russo, Rodolfo (author)
Veneziano, Gabriele (author)
Stockholms universitetNordiska institutet för teoretisk fysik (Nordita) (creator_code:org_t)

By the author/editor: D'Appollonio, Gi ...; Di Vecchia, Paol ...; Russo, Rodolfo; Veneziano, Gabri ...

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