A microscopic description of absorption in high-energy string-brane collisions

  • Giuseppe D’Appollonio
  • Paolo Di Vecchia
  • Rodolfo Russo
  • Gabriele Veneziano
Open Access
Regular Article - Theoretical Physics


We study the collision of a highly energetic light closed string off a stack of Dp-branes at (sub)string-scale impact parameters and in a regime justifying a perturbative treatment. Unlike at larger impact parameters — where elastic scattering and/or tidal excitations dominate — here absorption of the closed string by the brane system, with the associated excitation of open strings living on it, becomes important. As a first step, we study this phenomenon at the disk level, in which the energetic closed string turns into a single heavy open string at rest whose particularly simple properties are described.


D-branes Bosonic Strings 


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Copyright information

© The Author(s) 2016

Authors and Affiliations

  • Giuseppe D’Appollonio
    • 1
  • Paolo Di Vecchia
    • 2
    • 3
  • Rodolfo Russo
    • 4
  • Gabriele Veneziano
    • 5
    • 6
  1. 1.Dipartimento di FisicaUniversità di Cagliari and INFNMonserratoItaly
  2. 2.The Niels Bohr InstituteUniversity of CopenhagenCopenhagen ØDenmark
  3. 3.Nordita, KTH Royal Institute of Technology and Stockholm UniversityStockholmSweden
  4. 4.Queen Mary University of LondonLondonUnited Kingdom
  5. 5.Collège de FranceParisFrance
  6. 6.Theory Division, CERNGeneva 23Switzerland

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