“School of Physics”

Back to Papers Home
Back to Papers of School of Physics

Paper   IPM / P / 8499
School of Physics
  Title:   Word-Sheet Corrections to Dyons in String Theories: A Laboratory for the Strong OSV Conjecture
  Author(s):  Q. Exirifard
  Status:   Preprint
  Journal:
  Year:  2007
  Supported by:  IPM
  Abstract:
The simplest dyons in the toroidal compactifications of type IIB string theory correspond to non-trivial dilaton, NS two form and metric in 10D. Presuming that the NS two form can be considered as torsion (MT conjecture), we construct all the cubic alpha-prime corrections from the known R^4 corrections before utilizing Sen's formalism to evaluate the cubic alpha-prime corrections to the entropy of such simplest dyon. These corrections are found non-vanishing. On the contrary, we argue that the strong OSV conjecture implies they should be vanishing. This conflict validates only one of the strong OSV conjecture or the strong MT conjecture.

Download TeX format
back to top
scroll left or right