Nab: Measurement principles, apparatus and uncertainties

D Počanić ,A Palladino,S Balascuta,J Byrne,S Baeßler,E Frlež,A Klein,V Cianciolo,S I Penttilä ,J D Bowman ,R Grzywacz ,K P Rykaczewski ,W S Wilburn ,J R Calarco ,S A Page ,J W Martin ,R Alarcón ,A R Young ,Christopher Crawford ,M Bychkov ,F W Hersman ,L P Alonzi ,Michael Gericke ,Vladimir Gudkov ,Geoffrey L Greene ,G R Young

doi:10.1016/j.nima.2009.07.065

Nab: Measurement principles, apparatus and uncertainties

D Počanić , A Palladino + Show 24 more

Open Access

https://doi.org/10.1016/j.nima.2009.07.065

Copy DOI

Journal: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment	Publication Date: Aug 7, 2009
Citations: 57

Affiliation: University of Virginia, Arizona State University, University of Sussex, Los Alamos National Laboratory, Oak Ridge National Laboratory, University of Tennessee at Knoxville, University of New Hampshire, University of Manitoba, University of Winnipeg, University of Kentucky, University of South Carolina

#Fundamental Neutron Physics Beamline #Fierz Interference Term + Show 8 more

Abstract
Full-Text PDF
Similar Papers

Abstract

The Nab collaboration will perform a precise measurement of a, the electron–neutrino correlation parameter, and b, the Fierz interference term in neutron beta decay, in the Fundamental Neutron Physics Beamline at the SNS, using a novel electric/magnetic field spectrometer and detector design. The experiment is aiming at the 10 - 3 accuracy level in Δ a / a , and will provide an independent measurement of λ = G A / G V , the ratio of axial-vector to vector coupling constants of the nucleon. Nab also plans to perform the first ever measurement of b in neutron decay, which will provide an independent limit on the tensor weak coupling.

Full Text