JLab Measurements of the [superscript 3]He Form Factors at Large Momentum Transfers

Camsonne, A.; Katramatou, A. T.; Olson, M.; Acha, A.; Allada, K.; Anderson, B. D.; Arrington, J.; Baldwin, A.; Chen, J.-P.; Choi, S.; Chudakov, E.; Cisbani, E.; Craver, B.; Decowski, P.; Dutta, C.; Folts, E.; Frullani, S.; Garibaldi, F.; Gilman, R.; Gomez, J.; Hahn, B.; Hansen, J.-O.; Higinbotham, D. W.; Holmstrom, T.; Huang, J.; Iodice, M.; Jiang, X.; Kelleher, A.; Khrosinkova, E.; Kievsky, A.; Kuchina, E.; Kumbartzki, G.; Lee, B.; LeRose, J. J.; Lindgren, R. A.; Lott, G.; Lu, H.; Marcucci, L. E.; Margaziotis, D. J.; Markowitz, P.; Marrone, S.; Meekins, D.; Meziani, Z.-E.; Michaels, R.; Moffit, B.; Norum, B.; Petratos, G. G.; Puckett, A.; Qian, X.; Rondon, O.; Saha, A.; Sawatzky, B.; Segal, J.; Shabestari, M.; Shahinyan, A.; Solvignon, P.; Sparveris, N.; Subedi, R. R.; Suleiman, R.; Sulkosky, V.; Urciuoli, G. M.; Viviani, M.; Wang, Y.; Wojtsekhowski, B. B.; Yan, X.; Yao, H.; Zhang, W.-M.; Zheng, X.; Zhu, L.

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Camsonne, A.; Katramatou, A. T.; Olson, M.; Acha, A.; Allada, K.; ... Show more

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Abstract

The charge and magnetic form factors, F[subscript C] and F[subscript M], respectively, of [superscript 3]He are extracted in the kinematic range 25 fm[superscript -2]≤Q[superscript 2]≤61 fm[superscript -2] from elastic electron scattering by detecting [superscript 3]He recoil nuclei and scattered electrons in coincidence with the two High Resolution Spectrometers of the Hall A Facility at Jefferson Lab. The measurements find evidence for the existence of a second diffraction minimum for the magnetic form factor at Q[superscript 2]=49.3 fm[superscript -2] and for the charge form factor at Q[superscript 2]=62.0 fm[superscript -2]. Both minima are predicted to exist in the Q[superscript 2] range accessible by this Jefferson Lab experiment. The data are in qualitative agreement with theoretical calculations based on realistic interactions and accurate methods to solve the three-body nuclear problem.

Date issued

2017-10

URI

http://hdl.handle.net/1721.1/113877

Department

Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science

Journal

Physical Review Letters

Publisher

American Physical Society

Citation

Version: Final published version

ISSN

0031-9007

1079-7114

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