Astrophysical Bounds on Photons Escaping into Extra Dimensions

Journal Article · Fri Jan 25 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.031602· OSTI ID:21020961

Friedland, A; Giannotti, M ^[1]

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1. Elementary Particles and Field Theory Group, MS B285, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

In a class of extra-dimensional models with a warped metric and a single brane the photon can be localized on the brane by gravity only. An intriguing feature of these models is the possibility of the photon escaping into the extra dimensions. The search for this effect has motivated the present round of precision ortho-positronium decay experiments. We point out that in this framework a photon in plasma should be metastable, and we consider what this implies for cooling of globular cluster stars and core-collapse supernovae. The resulting bounds on the model parameter exceed the possible reach of ortho-positronium experiments by many orders of magnitude.

• OSTI ID: 21020961
• Journal Information: Physical Review Letters, Vol. 100, Issue 3; Other Information: DOI: 10.1103/PhysRevLett.100.031602; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASTROPHYSICS
BRANES
COSMOLOGICAL MODELS
GRAVITATION
PARTICLE DECAY
PHOTONS
PLASMA
POSITRONIUM
STAR CLUSTERS
STRING THEORY