Strength of the antineutrino-proton neutral-current interaction
1978; American Physical Society; Volume: 18; Issue: 1 Linguagem: Inglês
10.1103/physrevd.18.7
ISSN1538-4500
AutoresM. Derrick, P. Gregory, L. Hyman, Karl‐Erich Jaeger, D. Lissauer, R. J. Miller, B. Musgrave, James J. Phelan, P. Schreiner, R. Singer, S. J. Barish, A. Engler, G. Keyes, R.W. Kraemer, T. Kikuchi, V. E. Barnes, D. D. Carmony, A. F. Garfinkel, A. T. Laasanen,
Tópico(s)Dark Matter and Cosmic Phenomena
ResumoUsing the Fermilab 15-foot hydrogen bubble chamber exposed to a broad-band $\overline{\ensuremath{\nu}}$ and $\ensuremath{\nu}$ beam, we have studied the neutral-to-charged-current cross-section ratio $R$ for interactions on protons. The ratio ${R}^{\overline{\ensuremath{\nu}}p}$ is found assuming various forms of the neutral-current couplings. The data are consistent with the predictions of the Weinberg-Salam model and, assuming this model, we obtain ${R}^{\overline{\ensuremath{\nu}}p}=0.42\ifmmode\pm\else\textpm\fi{}0.13$.
Referência(s)