Spin-polarization observables of deuteron photodisintegration at low energies in pionless effective-field theory

Spin-polarization observables of deuteron photodisintegration at low energies in pionless... Spin-polarization observables of deuteron photodisintegration at low energies are studied in a pionless effective-field theory up to next-to-next-to-leading order (NNLO). The total and differential cross sections, induced neutron polarization Py′, and tensor analyzing powers T20 and T22 of the process are calculated at photon energies from the breakup threshold to 20 MeV. We find that the NNLO corrections in the cross sections and Py′ converge well whereas they turn out to be important contributions in T20 and T22. We discuss the discrepancy between theory and experiment in Py′ still persisting as well as an implication of our result to the first measurement of T20 at low energies in the High Intensity Gamma-Ray Source facility at Duke University. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

Spin-polarization observables of deuteron photodisintegration at low energies in pionless effective-field theory

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Spin-polarization observables of deuteron photodisintegration at low energies in pionless effective-field theory

Abstract

Spin-polarization observables of deuteron photodisintegration at low energies are studied in a pionless effective-field theory up to next-to-next-to-leading order (NNLO). The total and differential cross sections, induced neutron polarization Py′, and tensor analyzing powers T20 and T22 of the process are calculated at photon energies from the breakup threshold to 20 MeV. We find that the NNLO corrections in the cross sections and Py′ converge well whereas they turn out to be important contributions in T20 and T22. We discuss the discrepancy between theory and experiment in Py′ still persisting as well as an implication of our result to the first measurement of T20 at low energies in the High Intensity Gamma-Ray Source facility at Duke University.
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Publisher
American Physical Society (APS)
Copyright
Copyright © ©2017 American Physical Society
ISSN
0556-2813
eISSN
1089-490X
D.O.I.
10.1103/PhysRevC.96.014001
Publisher site
See Article on Publisher Site

Abstract

Spin-polarization observables of deuteron photodisintegration at low energies are studied in a pionless effective-field theory up to next-to-next-to-leading order (NNLO). The total and differential cross sections, induced neutron polarization Py′, and tensor analyzing powers T20 and T22 of the process are calculated at photon energies from the breakup threshold to 20 MeV. We find that the NNLO corrections in the cross sections and Py′ converge well whereas they turn out to be important contributions in T20 and T22. We discuss the discrepancy between theory and experiment in Py′ still persisting as well as an implication of our result to the first measurement of T20 at low energies in the High Intensity Gamma-Ray Source facility at Duke University.

Journal

Physical Review CAmerican Physical Society (APS)

Published: Jul 13, 2017

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