Skip to main content
SpringerLink
Log in

Electrometer designs for use in an unbound-quark search

  • Published:
Lettere al Nuovo Cimento (1971-1985)

Summary

An instrument capable of modulating a small capacitance is described. It is to be used as an electrometer in a search for stable fractionally charged particles in test masses of several grams each, the largest yet studied. The new approach uses Gauss’s law to sense charge directly and does not require the measurement of small forces, as has been the case in most previous quark searches. Preliminary results from an unoptimized experiment are encouraging, showing sensitivities of a few 100e/∈Hz at atmospheric pressures and without any special precautions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. G. S. LaRue, W. M. Fairbank andA. F. Hebard:Phys. Rev. Lett.,38, 1011 (1977).

    Article  ADS  Google Scholar 

  2. G. S. La Rue, W. M. Fairbank andJ. D. Phillips:Phys. Rev. Lett.,42, 142 (1979).

    Article  ADS  Google Scholar 

  3. G. S. LaRue, J. D. Phillips andW. M. Fairbank:Phys. Rev. Lett.,46, 967 (1981).

    Article  ADS  Google Scholar 

  4. R. Bland, D. Bocobo, M. Eubank andJ. Royer:Phys. Rev. Lett.,39, 369 (1977).

    Article  ADS  Google Scholar 

  5. G. D. Putt andP. C. M. Yock:Phys. Rev. D,17, 1466 (1978).

    Article  ADS  Google Scholar 

  6. M. Marinelli andG. Moepurgo:Phys. Lett. B,94, 427 (1980).

    Article  ADS  Google Scholar 

  7. C. L. Hodges, P. Abrams, A. R. Baden, R. W. Bland, D. C. Joyce, J. P. Royer, F. Wm. Walters, E. G. Wilson, P. G. Y. Wong andK. C. Young:Phys. Rev. Lett.,47, 1651 (1981).

    Article  ADS  MATH  Google Scholar 

  8. J. P. Schiffer:Phys. Rev. Lett.,48, 213 (1982).

    Article  ADS  Google Scholar 

  9. M. Marinelli andG. Morpurgo:Phys. Rev.,85, 161 (1982).

    Google Scholar 

  10. E. R. Williams, J. E. Faller andH. A. Hill:Phys. Rev. Lett.,26, 721 (1971).

    Article  ADS  Google Scholar 

  11. W. Innes, S. Klein, M. Perl andJ. C. Price: SLAC-PUB-2938, 11 pp., June 1982.

Download references

Author information

Authors and Affiliations

  1. Electrical Measurements and Standard Division, National Bureau of Standards, 20234, Washington, D.C.

    E. R. Williams

  2. Pavillon de Breteuil, Bureau International des Poids et Misures, F-92310, Sevres, France

    G. T. Gillies

Authors
  1. E. R. Williams
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. T. Gillies
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Williams, E.R., Gillies, G.T. Electrometer designs for use in an unbound-quark search. Lett. Nuovo Cimento 37, 520–524 (1983). https://doi.org/10.1007/BF02751781

Download citation

  • Received:

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02751781

PACS

Search

Navigation