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Microscopic unitary description of tidal excitations in high-energy string-brane collisions
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2013 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 11, 126- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. no 11, 126- p.
Keyword [en]
Superstrings and Helerotic Strings, D-branes
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-137467DOI: 10.1007/JHEP11(2013)126ISI: 000327093100012ScopusID: 2-s2.0-84896269467OAI: diva2:680171

QC 20131217

Available from: 2013-12-17 Created: 2013-12-13 Last updated: 2013-12-17Bibliographically approved

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Di Vecchia, Paolo
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