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Advances in High Energy Physics
Volume 2011, Article ID 479038, 18 pages
Research Article

On Terms and MHV Amplitudes in Supergravity Vacua of Type II Superstrings

1Dipartimento di Fisica, INFN Sezione di Roma “Tor Vergata”, Università di Roma “Tor Vergata”, Via della Ricerca Scientifica, 00133 Roma, Italy
2Physics Department, Theory Unit, CERN, 1211 Geneva 23, Switzerland

Received 14 April 2011; Accepted 23 June 2011

Academic Editor: Yang-Hui He

Copyright © 2011 Massimo Bianchi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We compute one-loop threshold corrections to terms in supergravity vacua of Type II superstrings. We then discuss nonperturbative corrections generated by asymmetric D-brane instantons. Finally we derive generating functions for MHV amplitudes at tree level in supergravities.