Search for Axion-like Particles from the Sun in an Underground Negative-Ion TPC

Axion-like particles produced in the sun with masses in the keV range have been proposed to explain several long-standing anomalies in astrophysical X-ray observations. The gravitationally bound massive axions could be observed decaying to two X-ray photons in an instrumented underground detector vo...

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Bibliographic Details
Published in:Nuclear physics. Section B, Proceedings supplement Proceedings supplement, 2004-09, Vol.134, p.130-132
Main Authors: Naples, D., Ayad, R., Bonvincini, G., Katz-Hyman, M., Martoff, J., Miyamoto, J., Paolone, V., Savinov, V., Shipsey, I.
Format: Article
Language:English
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Summary:Axion-like particles produced in the sun with masses in the keV range have been proposed to explain several long-standing anomalies in astrophysical X-ray observations. The gravitationally bound massive axions could be observed decaying to two X-ray photons in an instrumented underground detector volume. We propose to use a 1.5m 3 Negative-Ion TPC instrumented with GEM/Micromegas pad readout to perform a sensitive search for keV range axions. The sensitivity of the proposed experiment will be five orders of magnitude below existing limits after one year of running.
ISSN:0920-5632
1873-3832
DOI:10.1016/j.nuclphysbps.2004.08.021