Optimum chemical sites and techniques for searches for negatively charged rare particles

Details Optimum chemical sites and techniques for searches for negatively charged rare particles Optimum chemical sites and techniques for searches for negatively charged rare particles

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sci...244.1450b&link_type=abstract

Science (ISSN 0036-8075), vol. 244, June 23, 1989, p. 1450-1457. Research supported by Ohio State University.

Astronomy and Astrophysics

Astrophysics

8

Big Bang Cosmology, Interstellar Chemistry, Nuclear Astrophysics, Particle Theory, Supersymmetry, Diatomic Molecules, Laser Spectroscopy, Nuclear Fusion, Nuclear Interactions, Rotational Spectra

Scientific paper

Supersymmetric particle theories have predicted the existence of massive, negatively charged, nonstrongly interacting particles, denoted as X(-) particles. If stable X(-) particles existed at the onset of primordial nucleosynthesis, they would have been bound initially to the primordial nuclides. However, subsequent stellar processing, as part of the chemical evolution of the galaxy, is shown to have produced considerable rearrangement of the relative chemical abundances of X(-) particles subsequent to their binding to primordial nuclei. Optimal chemical environments in which to search for X(-) particles are found to be boron and fluorine. A mass-independent search for X(-) particles bound to heavy nuclei that utilizes laser spectroscopy of rotational bands in diatomic molecules is estimated to have an unusually high relative sensitivity to possible X(-) particles.

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