A search for neutral penetrating particles has been made by use of an 800-GeV proton beam incident on the magnetized beam dump of the spectrometer of Fermilab experiment 605. Limits on the mass and couplings of such particles are presented. A 1.8-MeV axion coupled only to e+e- is ruled out.
ASJC Scopus subject areas
- Physics and Astronomy(all)