Recent results from Daya Bay experiment

Abstract

Abstract. This manuscript is a short summary of my talk given at ICNFP2014 Conference. Here we report on new results of sin 2 2θ 13 and Δm 2 ee measurements, search for the sterile neutrino within 10 −3 eV 2 < Δm 2 41 < 0.1 eV 2 domain and precise measurement of the reactor absolute antineutrino flux.

Inverse-square law violation and reactor antineutrino anomaly

“…All four curves in Fig. 2 are in agreement, within the errors, with the new Day Bay measurement [24], but are in some conflict with the ILL data point [5].…”

“…Also shown are the data from the medium and long baseline reactor experiments Palo Verde [17], CHOOZ [18], Double Chooz [19,20], KamLAND [21], RENO [22], and Daya Bay [23,24]. The data sets from Refs.…”

“…The data sets from Refs. [22,23] are relative measurements, while the recent high-precision Daya Bay measurement [24] is absolute (in Fig. 1 it is placed at the effective baseline of 573 m).…”

“…[22,23] are relative. The ratios of the KamLAND [21] and Daya Bay 2015 [24] results to the "Huber-Mueller" model predictions are plotted at the flux-weighted distances of 175 km and 573 m, respectively. The curve represents the theoretical expectation, in which the 3ν oscillations parameters are fixed to the global best fit values taken from the Review of Particle Physics [15]; the normal mass ordering and no CP violation are assumed.…”

“…Note that the data points "Krasnoyarsk-IV" [8] and "Rovno 92" [11] are ignored in the numerous RAA analyses, but the latter point is significant for revealing the mentioned trend. Also shown are the data from the medium and long baseline reactor experiments Palo Verde [17], CHOOZ [18], Double Chooz [19,20], KamLAND [21], RENO [22], and Daya Bay [23,24]. The data sets from Refs.…”