RevModPhys.84.1307

Kuvshinnikov et al 1991 krasnoyarsk vidyakin et al

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: he knowledge of the neutrino flux contributes the largest uncertainty. A tabulation of extracted cross sections compared to theoretical predictions is shown in Table IV. We currently omit measurements from Palo Verde (Boehm et al., 2001), CHOOZ (Apollonio et al., 2003), and KamLAND (Gando et al., 2011), as such measurements were performed at a distance greater than 100 m from the reactor core. Such distances are much more sensitive to oscillation phenomena. Also, the level of statistical precision from this latter set of experiments is lower than that from the Bugey reactor. Because most experimental tests of inverse beta decay involve neutrinos produced from reactor sources, the conversion from the fission decays of 235 U, 239 Pu, 239 U, and 241 Pu to neutrino fluxes is extremely important. Most predictions rely on the calculations made by Schreckenbach et al. (1985). 7 The ILL experiment revised their original 1986 measurement due to better estimates of power consumption and neutron lifetime. Joseph A. Formaggio and G. P. Zeller: From eV to EeV: Neutrino cross sections . . . 1319 TABLE IV. Measured inverse decay cross sections from short-baseline ( < 100 m) reactor experiments. Data are taken from ILL¨ Grenoble (Kwon et al., 1981; Hoummada et al., 1995), Gosgen (Zacek et al., 1986), ROVNO (Kuvshinnikov et al., 1991), Krasnoyarsk (Vidyakin et al., 1987), and Bugey (Declais et al., 1994; Achkar et al., 1995). Theoretical predictions include original estimates and (in parenthesis) the recalculated predictions from (Mention et al., 2011). 235 Experiment ILL (Kwon et al., 1981; Hoummada et al., 1995) Bugey (Declais et al., 1994) 94 Bugey (Achkar et al., 1995) 95 Bugey (Achkar et al., 1995) 95 Bugey (Achkar et al., 1995) 95 ¨ Gosgen (Zacek et al., 1986) I ¨ Gosgen (Zacek et al., 1986) II ¨ Gosgen (Zacek et al., 1986) III ROVNO (Kuvshinnikov et al., 1991) Krasnoyarsk (Vidyakin et al., 1987) I Krasnoyarsk (Vidyakin et al., 1987) II Krasnoyarsk (Vidyakin et al., 1987) III Fuel composition 239 239 Pu U U 93% 53.8% 53.8% 53.8% 53.8% 61.9% 58.4% 54.3% 61.4% 99% 99% 99% ÁÁÁ 32.8% 32.8% 32.8% 32.8% 27.2% 29.8% 32.9% 27.5% ÁÁÁ ÁÁÁ ÁÁÁ Recently, a new calculation of the antineutrino spectrum has emerged which incorporates a more comprehensive model of fission production (Mueller et al., 2011). The new method, which is well constrained by the accompanying electron spectrum measured from fission, has the effect that it systematically 0.6 0.8 1 1.2 1.4 241 ÁÁÁ 7.8% 7.8% 7.8% 7.8% 6.7% 6.8% 7.0% 3.1% ÁÁÁ ÁÁÁ ÁÁÁ Pu Distance (m) 9 15 15 40 95 37.9 45.9 64.7 18 33 57 33 ÁÁÁ 5.6% 5.6% 5.6% 5.6% 4.2% 5.0% 5.8% 7.4% ÁÁÁ ÁÁÁ ÁÁÁ exp =theo 0:800ð0:832Þ Æ 0:028 Æ 0:071 0:987ð0:943Þ Æ 0:014 Æ 0:027 0:988ð0:943Þ Æ 0:037 Æ 0:044 0:994ð0:948Þ Æ 0:010 Æ 0:045 0:915ð0:873Þ Æ 0:10 Æ 0:041 1:018ð0:971Þ Æ 0:017 Æ 0:06 1:045ð0:997Þ Æ 0:019 Æ 0:06 0:975ð0:930Þ Æ 0:033 Æ 0:06 0:985ð0:940Þ Æ 0:028 Æ 0:...
View Full Document

Ask a homework question - tutors are online