Publications
Publication Information
| Title | Dispersive Corrections to the Born Approximation in Elastic Electron-Nucleus Scattering in the Intermediate Energy Regime |
| Authors | Paul Gueye, Al Amin Kabir, Jacqueline Glister, Byungwuek Lee, Ronald Gilman, Douglas Higinbotham, Eliazer Piasetzky, Guy Ron, Adam Sarty, Steffen Strauch, Adeleke Adeyemi, Kalyan Allada, Whitney Armstrong, John Arrington, H. Arenhovel, Arie Beck, Fatiha Benmokhtar, Barry Berman, Werner Boeglin, Edward Brash, Alexandre Camsonne, John Calarco, Jian-Ping Chen, Seonho Choi, Eugene Chudakov, Luminita Coman, Brandon Craver, Francesco Cusanno, Jonathan Dumas, Chiranjib Dutta, Robert Feuerbach, Arne Freyberger, Salvatore Frullani, Franco Garibaldi, Jens-Ole Hansen, Timothy Holmstrom, Charles Hyde, H. Ibrahim, Yordanka Ilieva, Xiaodong Jiang, Mark Jones, Aidan Kelleher, Elena Khrosinkova, Elena Kuchina, Gerfried Kumbartzki, John LeRose, Richard Lindgren, Pete Markowitz, S. May-Tal Beck, Emily McCullough, David Meekins, Mehdi Meziane, Zein-Eddine Meziani, Robert Michaels, Bryan Moffit, Blaine Norum, Yongseok Oh, M. Olson, Michael Paolone, Kent Paschke, Charles Perdrisat, Milan Potokar, Roman Pomatsalyuk, Ishay Pomerantz, Andrew Puckett, Vina Punjabi, Xin Qian, Yi Qiang, Ronald Ransome, Meral Reyhan, Julie Roche, Yannick Rousseau, Bradley Sawatzky, Elaine Schulte, M. Schwamb, Mitra Hashemi Shabestari, Albert Shahinyan, R. Shneor, Simon Sirca, Karl Slifer, Patricia Solvignon-Slifer, J. Song, Rachel Sparks, Ramesh Subedi, Guido Maria Urciuoli, Kebin Wang, Bogdan Wojtsekhowski, Xuefei Yan, Huan Yao, Xiaohui Zhan, X. Zhu |
| JLAB number | JLAB-PHY-18-2707 |
| LANL number | arXiv:1805.12441 |
| Other number | DOE/OR/23177-4450 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for European Physical Journal A Volume 56 Page(s) 126 Refereed | |
| Publication Abstract: | Measurements of elastic electron scattering data within the past decade have highlighted two-photon exchange contributions as a necessary ingredient in theoretical calculations to precisely evaluate hydrogen elastic scattering cross sections. This correction can modify the cross section at the few percent level. In contrast, dispersive effects can cause significantly larger changes from the Born approximation.The purpose of this experiment is to extract the carbon-12 elastic cross section around the first diffraction minimum, where the Born term contributions to the cross section are small to maximize the sensitivity to dispersive effects. The analysis uses the LEDEX data from the high resolution Jefferson Lab Hall A spectrometers to extract the cross sections near the first diffraction minimum of12C at beam energies of 362 MeV and 685 MeV. The results are in very good agreement with previous world data, although with less precision. The average deviation from a static nuclear charge distribution expected from linear and quadratic fits indicate a 30.6% contribution of dispersive effects to the cross section at 1 GeV. The magnitude of the dispersive effects near the first diffraction minimum of12C has been confirmed to be large with a strong energy dependence and could account for a large fraction of the magnitude for the observed quenching of the longitudinal nuclear response. These effects could also be important for nuclei radii extracted from parity-violating asymmetries measured near a diffraction minimum |
| Experiment Numbers: | E05-004 |
| Group: | Hall A |
| Document: | |
| DOI: | https://doi.org/10.1140/epja/s10050-020-00135-7 |
| Accepted Manuscript: | 1805.12441.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |