(Direct) Measurement of theta-13

2012/09/18 by R. P. Litchfield, Litchfield, R. P.
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.48550/arxiv.1209.3884

Invited talk at Flavor Physics and CP Violation (FPCP 2012), Hefei, China, May 21-25, 2012. 5 pages, 4 figures. PDFLaTeX

openalex publication_date 2012/09/18 · arxiv created 2012/09/26 · arxiv updated 2012/09/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A review of recent measurements of the neutrino mixing angle theta-13 is presented. In the standard parametrisation of three-neutrino mixing this is the last of the three mixing angles to be determined, and is known to be the smallest. The angle parametrises the overlap |<nu₃|nu_e>|², a non-zero value of which is necessary for leptonic CP violation driven by the KM mechanism. A non-zero overlap also makes experimental determination of the neutrino mass hierarchy much easier. Several experiments have recently reported non-zero measurements of theta-13; this presentation concentrates on T2K, MINOS, RENO and Double Chooz.

Related

• Progress on the neutrino mixing angle, theta₁3
• Measurements of Neutrino Oscillation Angle theta₁3
• Theta 13 Determination with Nuclear Reactors
• The Experimental Status of θ₁₃ from the Point of View of the Electron (Anti-) Neutrino Disappearance Experiments
• Review of theta(13) and prospects for Double Chooz