Neutrino oscillation analysis of 217 live-days of Daya Bay and 500 live-days of RENO

Abstract

We present a neutrino oscillation analysis of two particular data sets from the Daya Bay and RENO reactor neutrino experiments aiming to study the increase in precision in the oscillation parameters ${\sin }^2{2\theta }_{13}$ and the effective mass splitting $\Delta m_{ee}^2$ gained by combining two relatively simple to reproduce analyses available in the literature. For Daya Bay the data from 217 days between December 2011 and July 2012 were used. For RENO we used the data from 500 live days between August 2011 and January 2012. We reproduce reasonably well the results of the individual analyses, both, rate-only and spectral, defining a suitable ${\chi }^2$ statistic for each case. Finally, we performed a combined spectral analysis and extract tighter constraints on the parameters, with an improved precision between 30-40\% with respect of the individual analyses considered.

12 pages, 10 color figures. Accepted for publication in Advances in High Energy Physics

References in corpus (13)

• Observation of electron-antineutrino disappearance at Daya Bay
• Global analysis of three-flavour neutrino oscillations: synergies and tensions in the determination of theta_23, delta_CP, and the mass ordering
• Measurement of Neutrino Oscillation by the K2K Experiment
• Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
• First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA
• Search of Neutrino Magnetic Moments with a High-Purity Germanium Detector at the Kuo-Sheng Nuclear Power Station
• Search for CP violation in Neutrino and Antineutrino Oscillations by the T2K experiment with $2.2\times 10^{21}$ protons on target
• Testing the statistical compatibility of independent data sets
• Spectral Structure of Electron Antineutrinos from Nuclear Reactors
• Improved Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay
• Neutrino oscillations: the rise of the PMNS paradigm
• The 5 MeV bump - a nuclear whodunit mystery
• Particle physics origin of the 5 MeV bump in the reactor antineutrino spectrum?