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Title: Tensor Target Polarization at TRIUMF

The first measurements of tensor observables in $$\pi \vec{d}$$ scattering experiments were performed in the mid-80's at TRIUMF, and later at SIN/PSI. The full suite of tensor observables accessible in $$\pi \vec{d}$$ elastic scattering were measured: $$T_{20}$$, $$T_{21}$$, and $$T_{22}$$. The vector analyzing power $$iT_{11}$$ was also measured. These results led to a better understanding of the three-body theory used to describe this reaction. %Some measurements were also made in the absorption and breakup channels. A direct measurement of the target tensor polarization was also made independent of the usual NMR techniques by exploiting the (nearly) model-independent result for the tensor analyzing power at 90$$^\circ _{cm}$$ in the $$\pi \vec{d} \rightarrow 2p$$ reaction. This method was also used to check efforts to enhance the tensor polarization by RF burning of the NMR spectrum. A brief description of the methods developed to measure and analyze these experiments is provided.
Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-PHY-14-1932; DOE/OR/23177-3144
Journal ID: ISSN 1742-6588
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Physics. Conference Series; Journal Volume: 543; Conference: 1st Tensor Polarized Solid Target Workshop (Tensor2014), 10-12 Mar 2014. Newport News, USA
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States