Compton Scattering from the Deuteron Above Pion-Production Threshold

Authors

B. Strandberg, Nikhef, The Netherlands
J. R. M. Annand, University of Glascow, UK
W. Briscoe, The George Washington University
J. Brudvik, Lund University, Sweden
F. Cividini, Johannes Gutenberg-Universität Mainz, Germany
L. Clark, University of Glascow, UK
E. J. Downie, The George Washington University
K. England, University of Massachusetts - Dartmouth
G. Feldman, The George Washington University
K. G. Fissum, Lund University, Sweden
D. I. Glazier, University of Glascow, UK
K. Hamilton, University of Glascow, UK
K. Hansen, Lund University, Sweden
L. Isaksson, Lund University, Sweden
R. Al Jebali, University of Glascow, UK
Michael A. Kovash, University of KentuckyFollow
S. Lipschutz, Michigan State University
M. Lundin, Lund University, Sweden
M. Meshkian, Lund University, Sweden
D. G. Middleton, Johannes Gutenberg-Universität Mainz, Germany
L. S. Myers, Bluffton University
D. O'Donnell, University of Glascow, UK
G. O'Rielly, University of Massachusetts - Dartmouth
B. Oussena, The George Washington University
M. F. Preston, Lund University, Sweden
B. Schröder, Lund University, Sweden
B. Seitz, University of Glascow, UK
I. Strakovsky, The George Washington University
M. Taragin, The George Washington University

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.

Document Type

Article

Publication Date

7-23-2018

Notes/Citation Information

Published in Physical Review C, v. 98, issue 1, 012201, p. 1-6.

©2018 American Physical Society

The copyright holder has granted the permission for posting the article here.

This group of authors is collectively known as The COMPTON@MAX-lab Collaboration.

Digital Object Identifier (DOI)

https://doi.org/10.1103/PhysRevC.98.012201

Funding Information

The Lund Group acknowledges supportfrom the Swedish Research Council (Contracts No. 40324901and No. 80410001) and The Crafoord Foundation (GrantNo. 20060749). The Glasgow Group acknowledges supportfrom the Scottish Universities Physics Alliance (SUPA), theSUPA Prize Studentship, and STFC Grants No. 57071/1and 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/IRESAward No. 0553467 is acknowledged by the authors inWashington, D.C. and Massachusetts Dartmouth.

Repository Citation

Strandberg, B.; Annand, J. R. M.; Briscoe, W.; Brudvik, J.; Cividini, F.; Clark, L.; Downie, E. J.; England, K.; Feldman, G.; Fissum, K. G.; Glazier, D. I.; Hamilton, K.; Hansen, K.; Isaksson, L.; Al Jebali, R.; Kovash, Michael A.; Lipschutz, S.; Lundin, M.; Meshkian, M.; Middleton, D. G.; Myers, L. S.; O'Donnell, D.; O'Rielly, G.; Oussena, B.; Preston, M. F.; Schröder, B.; Seitz, B.; Strakovsky, I.; and Taragin, M., "Compton Scattering from the Deuteron Above Pion-Production Threshold" (2018). Physics and Astronomy Faculty Publications. 616.
https://uknowledge.uky.edu/physastron_facpub/616