Axion emission from SN1987A. Nuclear physics constraints

Details Axion emission from SN1987A. Nuclear physics constraints Axion emission from SN1987A. Nuclear physics constraints

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..219..507e&link_type=abstract

Physics Letters B, Volume 219, Issue 4, p. 507-514.

Physics

13

Scientific paper

We re-examine the energy-loss rate from the possible axion emission during the supernova SN1987A collapse, paying particular attention to the modification of the emission rate due to the process NN-->NNa by the nuclear medium. The main corrections are ϱ-meson exchange, many-body effects and nucleon effective mass. All of these decrease the previous lower bound for fa substantially and lead to a new lower bound fa>=(0.75-5) × 1010 GeV.
Laboratoire associé au CNRS.

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