Positronium-like states from supergravity

Eoin Ó Colgáin; Hossein Yavartanoo

doi:10.1016/j.nuclphysb.2009.07.014

Positronium-like states from supergravity

Eoin Ó Colgáin
, Hossein Yavartanoo

Korea Institute for Advanced Study

Research output: Contribution to journal › Article › peer-review

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) 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.

Original language	English
Pages (from-to)	219-229
Number of pages	11
Journal	Nuclear Physics B
Volume	822
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nuclphysb.2009.07.014
Publication status	Published - 21 Nov 2009
Externally published	Yes

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10.1016/j.nuclphysb.2009.07.014

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AB - 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) 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.

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Positronium-like states from supergravity

Abstract

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