| Αρχική Σελίδα > Study of the $^{8}B$ neutrino spectrum with a new technique |
| Article | |
| Title | Study of the $^{8}B$ neutrino spectrum with a new technique |
| Author(s) | Rehm, K E ; Winter, W ; Jianga, C L ; Ahmad, I ; Freedman, S J ; Greene, J ; Heinz, A ; Henderson, D ; Janssens, R V F ; Moore, E F ; Mukherjee, G ; Pardo, R C ; Paul, M ; Permington, T ; Savard, G ; Schiffera, J P ; Seweryniak, D ; Zinkann, G P |
| Affiliation | (Argonne Nat Lab, IL, USA) |
| Publication | 2003 |
| In: | Nucl. Phys. A 718 (2003) 443c-5c |
| In: | 7th International Symposium on Nuclei in the Cosmos, Fujiyoshida, Japan, 8 - 12 Jul 2002, pp.443c-5c |
| Subject category | Nuclear Physics |
| Abstract | The neutrino spectrum from the decay of /sup 8/B is a crucial ingredient in interpreting recent data from solar neutrino detectors. Since /sup 8/B decays to a broad state in /sup 8/Be, the shape of the neutrino spectrum is best obtained from a measurement of the a spectrum following the beta /sup +/ decay. A new technique has been used at the ATLAS accelerator to measure this spectrum by implanting /sup 8/B particles into the mid-plane of a 91 mu m thick Si detector. The advantage of this method is that both alpha particles are detected and systematic effects due to energy loss in catcher foils and dead layers of the detector are eliminated. To calibrate the detector, alpha 's from the decay of /sup 20/Na ions produced and implanted with the same technique were used. (5 refs). |