Charge form factor and sum rules of electromagnetic response functions in $$^{12}$$C
- ANL
- LANL
- Middle Tennessee State University
- Old Dominion University, JLAB
An {\it ab initio} calculation of the $$^{12}$$C elastic form factor, and sum rules of longitudinal and transverse response functions measured in inclusive (e,e') scattering, is reported, based on realistic nuclear potentials and electromagnetic currents. The longitudinal elastic form factor and sum rule are found to be in satisfactory agreement with available experimental data. A direct comparison between theory and experiment is difficult for the transverse sum rule. However, it is shown that the calculated one has large contributions from two-body currents, indicating that these mechanisms lead to a significant enhancement of the quasi-elastic transverse response. This fact may have implications for the anomaly observed in recent neutrino quasi-elastic charge-changing scattering data off $$^{12}$$C.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- DOE Contract Number:
- AC05-06OR23177; AC02-06CH11357; AC02-05CH11231
- OSTI ID:
- 1091785
- Report Number(s):
- JLAB-THY-13-1738; DOE/OR/23177-2560; arXiv:1305.6959
- Journal Information:
- Phys.Rev.Lett, Vol. 111, Issue 09
- Country of Publication:
- United States
- Language:
- English
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