تقرير
Total Absorption Spectroscopy Study of $^{92}$Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape
| العنوان: | Total Absorption Spectroscopy Study of $^{92}$Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape |
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| المؤلفون: | Zakari-Issoufou, A. -A., Fallot, M., Porta, A., Algora, A., Tain, J. L., Valencia, E., Rice, S., Bui, V. M, Cormon, S., Estienne, M., Agramunt, J., Äystö, J., Bowry, M., Briz, J. A., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Elomaa, V. -V., Eronen, T., Estévez, E., Farrelly, G. F., Garcia, A. R., Gelletly, W., Gomez-Hornillos, M. B, Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Karvonen, P., Kolhinen, V. S., Kondev, F. G, Martinez, T., Mendoza, E., Molina, F., Moore, I., Perez-Cerdán, A. B., Podolyák, Zs., Penttilä, H., Regan, P. H., Reponen, M., Rissanen, J., Rubio, B., Shiba, T., Sonzogni, A. A., Weber, C., collaboration, IGISOL |
| المصدر: | Phys. Rev. Lett. 115, 102503 (2015) |
| سنة النشر: | 2015 |
| المجموعة: | High Energy Physics - Experiment Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment, High Energy Physics - Experiment |
| الوصف: | The antineutrino spectra measured in recent experiments at reactors are inconsistent with calculations based on the conversion of integral beta spectra recorded at the ILL reactor. $^{92}$Rb makes the dominant contribution to the reactor spectrum in the 5-8 MeV range but its decay properties are in question. We have studied $^{92}$Rb decay with total absorption spectroscopy. Previously unobserved beta feeding was seen in the 4.5-5.5 region and the GS to GS feeding was found to be 87.5(25)%. The impact on the reactor antineutrino spectra calculated with the summation method is shown and discussed. Comment: 6 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.115.102503 |
| URL الوصول: | http://arxiv.org/abs/1504.05812 |
| رقم الأكسشن: | edsarx.1504.05812 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.115.102503 |
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