Neutrino-induced deuteron disintegration experiment
- University of California, Irvine, California 92697 (United States)
- LAPP, F-74941 Annecy-le-Vieux (France)
- Kurchatov Institute, Moscow (Russia)
Cross sections for the disintegration of the deuteron via neutral-current (NCD) and charged-current (CCD) interactions with reactor antineutrinos ({bar {nu}}{sub e}d{r_arrow}{bar {nu}}{sub e}pn and {bar {nu}}{sub e}d{r_arrow}e{sup +}nn) are measured to be 6.08{plus_minus}0.77{times}10{sup {minus}45} cm{sup 2} and 9.83{plus_minus}2.04{times}10{sup {minus}45} cm{sup 2} per neutrino, respectively, in excellent agreement with current calculations. Since the experimental NCD value depends upon the CCD value, if we use the theoretical value for the CCD reaction, we obtain the improved value of 5.98{plus_minus}0.54{times}10{sup {minus}45} for the NCD cross section. The neutral-current reaction allows a unique measurement of the isovector{endash}axial vector coupling constant in the hadronic weak interaction, {beta}. In the standard model, this constant is predicted to be exactly 1, independent of the Weinberg angle. We measure a value of {beta}{sup 2}=1.01{plus_minus}0.16. Using the above improved value for the NCD cross section, {beta}{sup 2} becomes 0.99{plus_minus}0.10. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 322019
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 59; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evidence for neutrino oscillations from muon decay at rest
Measurement of neutrino electron scattering and inverse beta-decay of carbon using neutrinos from stopped muon decay
Weak neutral disintegration of the deuteron by reactor antineutrinos
Journal Article
·
Thu Oct 31 23:00:00 EST 1996
· Physical Review, C
·
OSTI ID:389451
Measurement of neutrino electron scattering and inverse beta-decay of carbon using neutrinos from stopped muon decay
Thesis/Dissertation
·
Tue Mar 31 23:00:00 EST 1992
·
OSTI ID:10137923
Weak neutral disintegration of the deuteron by reactor antineutrinos
Journal Article
·
Sat Dec 31 23:00:00 EST 1977
· Phys. Rev., D; (United States)
·
OSTI ID:5086774