Invisible-axion emissions from SN 1987A

Details Invisible-axion emissions from SN 1987A Invisible-axion emissions from SN 1987A

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..62..849c&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 62, Feb. 20, 1989, p. 849-851. Research supported by NSF, Korea Science and Engin

Statistics

Computation

28

Bremsstrahlung, Nuclear Astrophysics, Nucleons, Pions, Supernova 1987A, Computational Astrophysics, Nucleon-Nucleon Interactions

Scientific paper

Based on the equivalence theorem of the on-shell S-matrix elements independently of nonlinearly realized Goldstone fields, the discrepancies raised by the use of the pseudovector derivative and pseudoscalar pion-nucleon couplings in the nucleon-nucleon axion bremsstrahlung process which is often taken as the dominant axion emission mechanism from SN 1987A is clarified. In addition, a new method is proposed to calculate the axion emission rate from NN yielding NN(pi) data, and the result is compared to the theoretical calculation based on the one-pion exchange approximation.

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