Leptonic decays of the - And - hyperons

W. Tanenbaum, V. Hungerbhler, R. Majka, J. N. Marx, P. Némethy, J. Sandweiss, W. J. Willis, M. Atac, S. Ecklund, P. J. Gollon, J. Lach, J. MacLachlan, A. Roberts, R. Stefanski, D. Theriot, C. L. Wang

    Research output: Contribution to journalArticle

    Abstract

    The decays - ne-», - e-» (-p), and e-» (-p) were studied using unpolarized hyperons from the Yale-Fermilab-BNL hyperon beam at the Brookhaven National Laboratory Alernating Gradient Synchrotron. The -, -, e-, and -decay-product momenta were measured by magnetic spectrometers with magnetostrictive wire spark chambers. A threshold Cerenkov counter and a total absorption calorimeter identified the electron and neutron, respectively. From a sample of 3507 reconstructed - ne-» events we have found gAgV=0.4350.035. From a sample of 55 reconstructed e-» events we have found gVgA=-0.170.35 assuming that the conserved vector current hypothesis correctly predicts the weak magnetic form factor. A new one-angle Cabibbo fit gives f=0.4360.010, d=0.8120.011, and,=0.2320.003 radian.

    Original languageEnglish (US)
    Pages (from-to)1871-1883
    Number of pages13
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume12
    Issue number7
    DOIs
    StatePublished - 1975

    Fingerprint

    hyperons
    Cerenkov counters
    spark chambers
    vector currents
    decay
    calorimeters
    form factors
    synchrotrons
    wire
    spectrometers
    momentum
    neutrons
    gradients
    thresholds
    products
    electrons

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Tanenbaum, W., Hungerbhler, V., Majka, R., Marx, J. N., Némethy, P., Sandweiss, J., ... Wang, C. L. (1975). Leptonic decays of the - And - hyperons. Physical Review D - Particles, Fields, Gravitation and Cosmology, 12(7), 1871-1883. https://doi.org/10.1103/PhysRevD.12.1871

    Leptonic decays of the - And - hyperons. / Tanenbaum, W.; Hungerbhler, V.; Majka, R.; Marx, J. N.; Némethy, P.; Sandweiss, J.; Willis, W. J.; Atac, M.; Ecklund, S.; Gollon, P. J.; Lach, J.; MacLachlan, J.; Roberts, A.; Stefanski, R.; Theriot, D.; Wang, C. L.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 12, No. 7, 1975, p. 1871-1883.

    Research output: Contribution to journalArticle

    Tanenbaum, W, Hungerbhler, V, Majka, R, Marx, JN, Némethy, P, Sandweiss, J, Willis, WJ, Atac, M, Ecklund, S, Gollon, PJ, Lach, J, MacLachlan, J, Roberts, A, Stefanski, R, Theriot, D & Wang, CL 1975, 'Leptonic decays of the - And - hyperons', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 12, no. 7, pp. 1871-1883. https://doi.org/10.1103/PhysRevD.12.1871
    Tanenbaum W, Hungerbhler V, Majka R, Marx JN, Némethy P, Sandweiss J et al. Leptonic decays of the - And - hyperons. Physical Review D - Particles, Fields, Gravitation and Cosmology. 1975;12(7):1871-1883. https://doi.org/10.1103/PhysRevD.12.1871
    Tanenbaum, W. ; Hungerbhler, V. ; Majka, R. ; Marx, J. N. ; Némethy, P. ; Sandweiss, J. ; Willis, W. J. ; Atac, M. ; Ecklund, S. ; Gollon, P. J. ; Lach, J. ; MacLachlan, J. ; Roberts, A. ; Stefanski, R. ; Theriot, D. ; Wang, C. L. / Leptonic decays of the - And - hyperons. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1975 ; Vol. 12, No. 7. pp. 1871-1883.
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    AU - Tanenbaum, W.

    AU - Hungerbhler, V.

    AU - Majka, R.

    AU - Marx, J. N.

    AU - Némethy, P.

    AU - Sandweiss, J.

    AU - Willis, W. J.

    AU - Atac, M.

    AU - Ecklund, S.

    AU - Gollon, P. J.

    AU - Lach, J.

    AU - MacLachlan, J.

    AU - Roberts, A.

    AU - Stefanski, R.

    AU - Theriot, D.

    AU - Wang, C. L.

    PY - 1975

    Y1 - 1975

    N2 - The decays - ne-», - e-» (-p), and e-» (-p) were studied using unpolarized hyperons from the Yale-Fermilab-BNL hyperon beam at the Brookhaven National Laboratory Alernating Gradient Synchrotron. The -, -, e-, and -decay-product momenta were measured by magnetic spectrometers with magnetostrictive wire spark chambers. A threshold Cerenkov counter and a total absorption calorimeter identified the electron and neutron, respectively. From a sample of 3507 reconstructed - ne-» events we have found gAgV=0.4350.035. From a sample of 55 reconstructed e-» events we have found gVgA=-0.170.35 assuming that the conserved vector current hypothesis correctly predicts the weak magnetic form factor. A new one-angle Cabibbo fit gives f=0.4360.010, d=0.8120.011, and,=0.2320.003 radian.

    AB - The decays - ne-», - e-» (-p), and e-» (-p) were studied using unpolarized hyperons from the Yale-Fermilab-BNL hyperon beam at the Brookhaven National Laboratory Alernating Gradient Synchrotron. The -, -, e-, and -decay-product momenta were measured by magnetic spectrometers with magnetostrictive wire spark chambers. A threshold Cerenkov counter and a total absorption calorimeter identified the electron and neutron, respectively. From a sample of 3507 reconstructed - ne-» events we have found gAgV=0.4350.035. From a sample of 55 reconstructed e-» events we have found gVgA=-0.170.35 assuming that the conserved vector current hypothesis correctly predicts the weak magnetic form factor. A new one-angle Cabibbo fit gives f=0.4360.010, d=0.8120.011, and,=0.2320.003 radian.

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