Article ID Journal Published Year Pages File Type
1841675 Nuclear Physics B 2009 11 Pages PDF
Abstract

We study semi-classical rotating open strings ending on a probe Dp-brane close to a stack of extremal, non-extremal Dp-branes and Dp-branes with B  -fields. These states may be interpreted as positronium-like bound states of spinning W-bosons in an SU(N+1)→SU(N)×U(1)SU(N+1)→SU(N)×U(1) theory. In each case, we describe the behaviour of the strings and examine the relation between the energy and the angular momentum of the bound state.

Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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