https://doi.org/10.1140/epja/s10050-025-01580-y
Review
Potential for tensor polarized deuterons in Hall D at Jefferson lab
Thomas Jefferson National Accelerator Facility, 23606, Newport News, VA, USA
Received:
9
October
2024
Accepted:
4
May
2025
Published online:
22
May
2025
Hall D at Jefferson lab is an ideal place to install a polarized deuteron target which can be “tensor polarized”, allowing the separation of the spin states 
or the measurement of tensor asymmetries. The bremsstrahlung photon beam with 12 GeV endpoint provides very little heating or radiation damage compared to an electron beam, allowing the target to be run in frozen spin mode. Adiabatic fast passage spin manipulations can then be used to greatly enhance the population of the 
spin state of the deuteron. Coherent photoproduction of 
mesons from deuterium is sensitive to double-scattering at high momentum transfer and in the spin state an additional sensitivity at intermediate momentum transfer opens up. We propose a frozen spin target for Hall D and the measurement of photoproduced coherently from the deuteron as a flagship measurement.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
