A High-Accuracy Measurement Of The Spin-Dependent Neutron Scattering Length Of The Deuteron

We give a brief report on the status of an experiment that has the goal to improve significantly the accuracy of the doublet neutron-deuteron scattering length a2. This poorly known value is crucial for a better understanding of few-nucleon systems, in particular as an input for novel effective fiel...

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Bibliographic Details
Published in:AIP conference proceedings 2006-01, Vol.842 (1), p.814-816
Main Authors: van den Brandt, B, Glattli, H, Griesshammer, H, Hautle, P, Kohlbrecher, J, Konter, J A, Piegsa, F M, Urrego-Blanco, J P, Schlimme, B S, Zimmer, O
Format: Article
Language:English
Subjects:
ACCURACY
DEUTERONS
NEUTRON-NEUTRON INTERACTIONS
NEUTRONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POLARIZED TARGETS
PRECESSION
PROTON-NEUTRON INTERACTIONS
QUANTUM FIELD THEORY
SCATTERING LENGTHS
SPIN
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Summary:We give a brief report on the status of an experiment that has the goal to improve significantly the accuracy of the doublet neutron-deuteron scattering length a2. This poorly known value is crucial for a better understanding of few-nucleon systems, in particular as an input for novel effective field theories of nuclear interactions. The value of a2 can be obtained from a linear combination of the spin-independent nd scattering length ac,d and the spin-dependent one, ai,d. The latter one is limiting the total accuracy and shall be determined at PSI in the present project with a relative accuracy of 10-3 using the method of pseudomagnetic precession of polarised neutrons passing through a polarised target.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2220391