Muon Capture on the Deuteron -- The MuSun Experiment
| Autor: | Andreev, V. A., Carey, R. M., Ganzha, V. A., Gardestig, A., Gorringe, T., Gray, F. E., Hertzog, D. W., Hildebrandt, M., Kammel, P., Kiburg, B., Knaack, S., Kravtsov, P. A., Krivshich, A. G., Kubodera, K., Lauss, B., Lynch, K. R., Maev, E. M., Maev, O. E., Mulhauser, F., Myhrer, F., Petitjean, C., Petrov, G. E., Prieels, R., Schapkin, G. N., Semenchuk, G. G., Soroka, M. A., Tishchenko, V., Vasilyev, A. A., Vorobyov, A. A., Vznuzdaev, M. E., Winter, P. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We propose to measure the rate \Rd\ for muon capture on the deuteron to better than 1.5% precision. This process is the simplest weak interaction process on a nucleus that can both be calculated and measured to a high degree of precision. The measurement will provide a benchmark result, far more precise than any current experimental information on weak interaction processes in the two-nucleon system. Moreover, it can impact our understanding of fundamental reactions of astrophysical interest, like solar pp fusion and the $\nu+d$ reactions observed by the Sudbury Neutrino Observatory. Recent effective field theory calculations have demonstrated, that all these reactions are related by one axial two-body current term, parameterized by a single low-energy constant. Muon capture on the deuteron is a clean and accurate way to determine this constant. Once it is known, the above mentioned astrophysical, as well as other important two-nucleon reactions, will be determined in a model independent way at the same precision as the measured muon capture reaction. Comment: Proposal for PSI Experiment R-08-01, submitted February 8, 2008 |
| Databáze: | arXiv |
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