Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-11-02
Phys.Rev.D81:126007,2010
Physics
High Energy Physics
High Energy Physics - Theory
46 pages, 11 figures, v4: additional comments added to intro
Scientific paper
10.1103/PhysRevD.81.126007
We extend the analysis of Alday and Maldacena for obtaining gluon scattering amplitudes at strong coupling to include external massive quark states. Our quarks are actually the N=2 hypermultiplets which arise when D7-brane probes are included in the AdS_5 x S^5 geometry. We work in the quenched approximation, treating the N=2 matter multiplets as external sources coupled to the N=4 SYM fields. We first derive appropriate massive-particle boundary conditions for the string scattering worldsheets. We then find an exact worldsheet which corresponds to the scattering of two massive quarks and two massless gluons and extract from this the associated scattering amplitude. We also find the worldsheet and amplitude for the scattering of four massive quarks. Our worldsheet solutions reduce to the four massless gluon solution of Alday and Maldacena in the limit of zero quark mass. The amplitudes we compute can also be interpreted in terms of 2-2 scattering involving gluons and massive W-bosons.
Barnes Edwin
Vaman Diana
No associations
LandOfFree
Massive quark scattering at strong coupling from AdS/CFT 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 Massive quark scattering at strong coupling from AdS/CFT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive quark scattering at strong coupling from AdS/CFT will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-255376