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

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

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004nuphs.134..130n&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 134, p. 130-132.

Physics

Nuclear Physics

Scientific paper

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 1.5m3 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.

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