Phys. Rev. Lett. 76, 2633–2636 (1996)New Astrophysical Constraints on the Light-Pseudoscalar–Photon CouplingReceived 1 April 1994; published in the issue dated 8 April 1996 New, more restrictive bounds on photon-massless-pseudoscalar coupling are discussed. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.2633
DOI:
10.1103/PhysRevLett.76.2633
PACS:
95.30.Cq, 14.80.Mz, 97.60.Gb
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