Absorption of dilaton partial waves by D3-branes

May, 1999
24 pages
Published in:
  • Nucl.Phys.B 560 (1999) 207-229
e-Print:
Report number:
  • PUPT-1865,
  • MIT-CTP-2866

Citations per year

19992006201320202025051015
Abstract:
We calculate the leading term in the low-energy absorption cross section for an arbitrary partial wave of the dilaton field by a stack of many coincident D3-branes. We find that it precisely reproduces the semiclassical absorption cross section of a 3-brane geometry, including all numerical factors. The crucial ingredient in making the correspondence is the identification of the precise operators on the D3-brane world-volume which couple to the dilaton field and all its derivatives. The needed operators are related through T-duality and the IIA/M-theory correspondence to the recently determined M(atrix) theory expressions for multipole moments of the 11D supercurrent. These operators have a characteristic symmetrized trace structure which plays a key combinatorial role in the analysis for the higher partial waves. The results presented here give new evidence for an infinite family of non-renormalization theorems which are believed to exist for two-point functions in N=4{\cal N} = 4 gauge theory in four dimensions.
Note:
  • 24 pages, LaTeX Report-no: PUPT-1865, MIT-CTP-2866
  • 11.15.-q
  • 11.25.-w
  • 04.70.Dy
  • D-branes
  • Black holes
  • membrane model: D-brane
  • coupling: dilaton
  • partial wave
  • cross section: absorption
  • approximation: semiclassical