Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1993-07-19
Nucl.Phys. B420 (1994) 339-362
Physics
High Energy Physics
High Energy Physics - Theory
25 pages, BROWN-HET-915, harvmac More discussion is added to section 3
Scientific paper
10.1016/0550-3213(94)90385-9
Strings propagating along surfaces with Dirichlet boundaries are studied in this paper. Such strings were originally proposed as a possible candidate for the QCD string. Our approach is different from previous ones and is simple and general enough, with which basic problems can be easily addressed. The Green function on a surface with Dirichlet boundaries is obtained through the Neumann Green function on the same surface, by employing a simple approach to Dirichlet conditions. An easy consequence of the simple calculation of the Green function is that in the simplest model, namely the bosonic Dirichlet string, the critical dimension is still 26, and the tachyon is still present in the spectrum, while the scattering amplitudes differ dramatically from those in the usual string theory. We discuss the high energy, fixed angle behavior of the four point scattering amplitudes on the disk and the annulus. We argue for general power-like behavior of arbitrary high energy, fixed angle scattering amplitudes. We also discuss the high temperature property of the finite temperature partition function on an arbitrary surface, and give an explicit formula of the one on the annulus.
No associations
LandOfFree
Dirichlet Strings does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dirichlet Strings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dirichlet Strings will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-317752