The tachyon effective field theory describing the dynamics of a non-BPS D-brane in superstring theory has an infinitely thin but finite tension kink solution describing a codimension one BPS D-brane.… Expand

The entropy of the black hole is given by the value of the entropy function at this extremum, and the values of the scalar fields at the horizon as well as the sizes of AdS2 and S D−2 are determined by extremizing this entropy function with respect to the corresponding parameters.Expand

We propose a field theory for describing the tachyon on a brane-antibrane system near the minimum of the potential. This field theory realizes two known properties of the tachyon effective action: 1)… Expand

: The spectrum of quarter BPS dyons in N = 4 supersymmetric string theories can change as the asymptotic moduli cross walls of marginal stability on which the dyon can break apart into a pair of half… Expand

We present threshold enhanced QCD corrections to inclusive processes such as Deep inelastic scattering, Drell-Yan process and Higgs productions through gluon fusion and bottom quark annihilation… Expand

I . THEORY ON TIIE LIE ALGEBRA l~educ t io f f of T h e o r e m 1 to t h e s e m i s i m p l e case . . . . . . . . . . . . . . . . . 243 S e c o n d r e d u c t i o n . . . . . . . . . . . . . . . .… Expand