D Glossary of string theory

d-brane
dp-brane


short dirichlet (mem)brane, submanifold (of dimension p+1) on ends of strings constrained lie, strings satisfy dirichlet boundary conditions.
d-string
a d1-brane
dbi
short dirac–born–infeld, in dbi action, action based on born–infeld action, modification of maxwell action of electrodynamics.
ddf
initials of del guidice, di vecchia, , fubini, in del guidice–di vecchia–fubini operator, operators generating oscillator algebra.
delphi
delphi experiment @ lep.
desy
deutsches elektronen-synchrotron
dglap
initials of dokshitzer–gribov–lipatov–altarelli–parisi introduced dglap evolution equation in qcd.
diff
diffeomorphism or diffeomorphism group.
dilatino


a supersymmetric partner of dilaton.
dilaton


a massless scalar particle, related dilations of spacetime.
dirichlet
dirichlet boundary conditions on open string ends of string fixed (often lying on d-brane).
dis
deep inelastic scattering
dlcq
discrete light-cone quantization
dm
dark matter
dØ



dp-brane


short dirichlet (mem)brane, submanifold (of dimension p+1) on ends of strings constrained lie, strings satisfy dirichlet boundary conditions.
dr
1.  short dimensional regularization.
2.  short dimensional reduction, way of constructing theories simpler theories in higher dimensions, making fields invariant under spacelike translations.
ds
de sitter, in de sitter space, lorentzian analogue of sphere
ds/cft
de sitter/conformal field theory, ds/cft correspondence.
dual resonance model


an precursor of string theory.
duality


a hidden connection between 2 different theories, such s-duality, t-duality, u-duality, mysterious duality.
dy
initials of drell–yan, in dy process.
dyon


a hypothetical particle both electrical , magnetic charge.