Compton scattering from the deuteron above pion-production threshold

doi:10.1103/PhysRevC.98.012201

Compton scattering from the deuteron above pion-production threshold

Physics And Astronomy

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2 Scopus citations

Abstract

The electromagnetic polarizabilities of the nucleon are fundamental nucleon-structure observables that characterize its response to external electromagnetic fields. The neutron polarizabilities can be accessed from Compton-scattering data on light nuclear targets. Recent measurements of the differential cross section for Compton scattering on the deuteron below the pion-production threshold have decreased the uncertainties in the neutron polarizabilities, yet the proton polarizabilities remain known substantially more accurately. As the sensitivity of the cross section to the polarizabilities increases with incident photon energy, measurements above the pion threshold may offer a way for an improved determination of the neutron polarizabilities. In this Rapid Communiciation, the first measurement of the cross section for coherent Compton scattering on the deuteron above the pion-production threshold is presented.

Original language	English
Article number	012201
Journal	Physical Review C
Volume	98
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.98.012201
State	Published - Jul 23 2018

Bibliographical note

Publisher Copyright:
© 2018 American Physical Society.

Funding

The authors acknowledge support from the staff of the MAX IV Laboratory. The Lund Group acknowledges support from the Swedish Research Council (Contracts No. 40324901 and No. 80410001) and The Crafoord Foundation (Grant No. 20060749). The Glasgow Group acknowledges support from the Scottish Universities Physics Alliance (SUPA), the SUPA Prize Studentship, and STFC Grants No. 57071/1 and No. 50727/1. Finally, support from NSF Grant No. PHY1309130, DOE Grants No. DE–SC0016581, No. DE–SC0016583, No. DE–FG02–06ER41422 and the NFS/IRES Award No. 0553467 is acknowledged by the authors in Washington, D.C. and Massachusetts Dartmouth. The authors would like to thank H.W. Grießhammer for constructive discussions.

Funders	Funder number
Scottish Universities Physics Alliance
University of Massachusetts Dartmouth
National Science Foundation Arctic Social Science Program	PHY1309130, 1714833
Science and Technology Facilities Council	50727/1, 57071/1
Crafoordska Stiftelsen	20060749
U.S. Department of Energy	DE–SC0016583, DE–FG02–06ER41422, 0553467, DE–SC0016581
Vetenskapsrådet	80410001, 40324901

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.98.012201

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title = "Compton scattering from the deuteron above pion-production threshold",

abstract = "The electromagnetic polarizabilities of the nucleon are fundamental nucleon-structure observables that characterize its response to external electromagnetic fields. The neutron polarizabilities can be accessed from Compton-scattering data on light nuclear targets. Recent measurements of the differential cross section for Compton scattering on the deuteron below the pion-production threshold have decreased the uncertainties in the neutron polarizabilities, yet the proton polarizabilities remain known substantially more accurately. As the sensitivity of the cross section to the polarizabilities increases with incident photon energy, measurements above the pion threshold may offer a way for an improved determination of the neutron polarizabilities. In this Rapid Communiciation, the first measurement of the cross section for coherent Compton scattering on the deuteron above the pion-production threshold is presented.",

author = "B. Strandberg and Annand, \{J. R.M.\} and W. Briscoe and J. Brudvik and F. Cividini and L. Clark and Downie, \{E. J.\} and K. England and G. Feldman and Fissum, \{K. G.\} and Glazier, \{D. I.\} and K. Hamilton and K. Hansen and L. Isaksson and Jebali, \{R. Al\} and Kovash, \{M. A.\} and S. Lipschutz and M. Lundin and M. Meshkian and Middleton, \{D. G.\} and Myers, \{L. S.\} and D. O'Donnell and G. O'Rielly and B. Oussena and Preston, \{M. F.\} and B. Schr{\"o}der and B. Seitz and I. Strakovsky and M. Taragin",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

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doi = "10.1103/PhysRevC.98.012201",

language = "English",

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AU - Strandberg, B.

AU - Annand, J. R.M.

AU - Briscoe, W.

AU - Brudvik, J.

AU - Cividini, F.

AU - Clark, L.

AU - Downie, E. J.

AU - England, K.

AU - Feldman, G.

AU - Fissum, K. G.

AU - Glazier, D. I.

AU - Hamilton, K.

AU - Hansen, K.

AU - Isaksson, L.

AU - Jebali, R. Al

AU - Kovash, M. A.

AU - Lipschutz, S.

AU - Lundin, M.

AU - Meshkian, M.

AU - Middleton, D. G.

AU - Myers, L. S.

AU - O'Donnell, D.

AU - O'Rielly, G.

AU - Oussena, B.

AU - Preston, M. F.

AU - Schröder, B.

AU - Seitz, B.

AU - Strakovsky, I.

AU - Taragin, M.

PY - 2018/7/23

Y1 - 2018/7/23

N2 - The electromagnetic polarizabilities of the nucleon are fundamental nucleon-structure observables that characterize its response to external electromagnetic fields. The neutron polarizabilities can be accessed from Compton-scattering data on light nuclear targets. Recent measurements of the differential cross section for Compton scattering on the deuteron below the pion-production threshold have decreased the uncertainties in the neutron polarizabilities, yet the proton polarizabilities remain known substantially more accurately. As the sensitivity of the cross section to the polarizabilities increases with incident photon energy, measurements above the pion threshold may offer a way for an improved determination of the neutron polarizabilities. In this Rapid Communiciation, the first measurement of the cross section for coherent Compton scattering on the deuteron above the pion-production threshold is presented.

AB - The electromagnetic polarizabilities of the nucleon are fundamental nucleon-structure observables that characterize its response to external electromagnetic fields. The neutron polarizabilities can be accessed from Compton-scattering data on light nuclear targets. Recent measurements of the differential cross section for Compton scattering on the deuteron below the pion-production threshold have decreased the uncertainties in the neutron polarizabilities, yet the proton polarizabilities remain known substantially more accurately. As the sensitivity of the cross section to the polarizabilities increases with incident photon energy, measurements above the pion threshold may offer a way for an improved determination of the neutron polarizabilities. In this Rapid Communiciation, the first measurement of the cross section for coherent Compton scattering on the deuteron above the pion-production threshold is presented.

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ER -

Compton scattering from the deuteron above pion-production threshold

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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