Search for a short-range, isospin-coupling component of the fifth force with use of a beam balance

Details Search for a short-range, isospin-coupling component of the fifth force with use of a beam balance Search for a short-range, isospin-coupling component of the fifth force with use of a beam balance

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..61.1340s&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 61, Sept. 19, 1988, p. 1340-1343.

Other

29

Beams (Radiation), Force Distribution, Particle Interactions, Spin-Spin Coupling, Balance, Carbon, Servocontrol, Torsion, Vacuum Chambers, Other Topics In General Relativity And Gravitation

Scientific paper

The weights of 2.3-kg test masses of lead, carbon, and copper in the presence of 1782-kg attracting masses of lead and brass placed in turn under a beam balance were compared in order to search for a short-range, isospin-coupling component of the fifth force. A coupling-constant value of (0.8 + or - 2.0) x 10 to the -2nd was obtained. The present results provide an independent method of verifying torsion-balance results, and they rule out several postulated two-component fifth-force solutions containing a short-range isospin term.

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