D-particles in the space-time of the shock wave

Citation
C. Acatrinei et al., D-particles in the space-time of the shock wave, J HIGH EN P, (1), 1999, pp. NIL_24-W19
Citations number
32
Categorie Soggetti
Physics
Journal title
JOURNAL OF HIGH ENERGY PHYSICS
ISSN journal
10298479 → ACNP
Issue
1
Year of publication
1999
Pages
NIL_24 - W19
Database
ISI
SICI code
1029-8479(19990421):1<NIL_24:DITSOT>2.0.ZU;2-X
Abstract
We study the interaction of two D-particles in the space-time of the shock wave. We first write the amplitude in string theory and find that, at large distances from the shock-wave source, the O(v(4)) term in the relative vel ocity v is an alpha'-independent function of the interbrane separation b. T he amplitude is therefore that of supergravity-for large b, only closed-str ing massless modes contribute. We then show how the same result is obtained in the matrix model (at small b) by setting up the formulation of the dime nsionally reduced super Yang-Mills theory in the curved background of the s hock wave.