Muon-neutrino carbon charged-current interaction near the muon threshold
1992; American Institute of Physics; Volume: 46; Issue: 6 Linguagem: Inglês
10.1103/physrevc.46.2554
ISSN1538-4497
AutoresD. D. Koetke, R. J. Fisk, D. S. Koetke, R. Manweiler, T. J. Bowles, A. Brown, R. E. Brown, R. L. Burman, David Clark, S. Clearwater, T. Dombeck, H. Kruse, D. Lee, B. Aas, G. Igo, C. R. Newsom, D. Beavis, S. Y. Fung, W. Gorn, R. T. Poe, G. J. VanDalen, B. Bassalleck, B. Dieterle, C. J. Gregory, R. E. Hill, J. H. Kang, C. P. Leavitt, L. B. Auerbach, S. K. Datta, Y Huang,
Tópico(s)Atomic and Molecular Physics
ResumoA measurement of the muon-neutrino carbon charged-current cross section, C12(νμ,μ−)X, was performed using the in-flight pion-decay neutrino source at the LAMPF accelerator. At an average interacting neutrino energy of 202 MeV an inclusive cross section of (15.9±2.6±3.7)×10−39 cm2 was measured. This value is in best agreement with the Fermi-gas model and is in disagreement with a previous experiment and subsequent calculations that yielded substantially lower cross sections. However, the muon energy spectrum shows a marked depletion of events at high energies compared to the Fermi-gas model. From a small sample of events in which the final-state nucleus was in the ground state of N12, a cross section for the reaction C12(νμ,μ−)12N(g.s.) of (1.7±0.8±0.3)×10−39 cm2 or about 11±5 % of the total event rate was obtained.Received 5 May 1992DOI:https://doi.org/10.1103/PhysRevC.46.2554©1992 American Physical Society
Referência(s)