Compton scattering from the deuteron above pion-production threshold

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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 languageEnglish
Article number012201
JournalPhysical Review C
Volume98
Issue number1
DOIs
StatePublished - 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.

FundersFunder number
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of ChinaPHY1309130, 1714833
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China
U.S. Department of Energy Oak Ridge National Laboratory U.S. Department of Energy National Science Foundation National Energy Research Scientific Computing CenterDE–SC0016583, DE–FG02–06ER41422, 0553467, DE–SC0016581
U.S. Department of Energy Oak Ridge National Laboratory U.S. Department of Energy National Science Foundation National Energy Research Scientific Computing Center
University of Massachusetts Dartmouth
Science and Technology Facilities Council50727/1, 57071/1
Science and Technology Facilities Council
Scottish Universities Physics Alliance
Crafoordska Stiftelsen20060749
Crafoordska Stiftelsen
Vetenskapsrådet80410001, 40324901
Vetenskapsrådet

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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