New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei

Abrahamyan, S.; Acha, A.; Afanasev, A.; Ahmed, Z.; Albataineh, H.; Aniol, K.; Armstrong, D.; Armstrong, W.; Arrington, J.; Averett, T.; Babineau, B.; Bailey, S.; Barber, J.; Barbieri, A.; Beck, A.; Bellini, V.; Beminiwattha, R.; Benaoum, H.; Benesch, J.; Benmokhtar, F.; Bertin, P.; Bielarski, T.; Boeglin, W.; Bosted, P.; Butaru, F.; Burtin, E.; Cahoon, J.; Camsonne, A.; Canan, M.; Carter, P.; Chang, C.; Cates, G.; Chao, Y.-C.; Chen, C.; Chen, J.-P.; Choi, Seonho; Chudakov, E.; Cisbani, E.; Craver, B.; Cusanno, F.; Dalton, M.; De Leo, R.; de Jager, K.; Deconinck, W.; Decowski, P.; Deepa, D.; Deng, X.; Deur, A.; Dutta, D.; Etile, A.; Ferdi, C.; Feuerbach, R.; Finn, J.; Flay, D.; Franklin, G.; Friend, M.; Frullani, S.; Fuchey, E.; Fuchs, S.; Fuoti, K.; Garibaldi, F.; Gasser, E.; Gilman, R.; Giusa, A.; Glamazdin, A.; Glesener, L.; Gomez, J.; Gorchtein, M.; Grames, J.; Grimm, K.; Gu, C.; Hansen, O.; Hansknecht, J.; Hen, O.; Higinbotham, D.; Holmes, R.; Holmstrom, T.; Horowitz, C.; Hoskins, J.; Huang, J.; Humensky, T.; Hyde, C.; Ibrahim, H.; Itard, F.; Jen, C.-M.; Jensen, E.; Jiang, X.; Jin, G.; Johnston, S.; Katich, J.; Kaufman, L.; Kelleher, A.; Kliakhandler, K.; King, P.; Kolarkar, A.; Kowalski, S.; Kuchina, E.; Kumar, K.; Lagamba, L.; Lambert, D.; LaViolette, P.; Leacock, J.; Leckey, J.; Lee, J.; LeRose, J.; Lhuillier, D.; Lindgren, R.; Liyanage, N.; Lubinsky, N.; Mammei, J.; Mammoliti, F.; Margaziotis, D.; Markowitz, P.; Mazouz, M.; McCormick, K.; McCreary, A.; McNulty, D.; Meekins, D.; Mercado, L.; Meziani, Z.-E.; Michaels, R.; Mihovilovic, M.; Moffit, B.; Monaghan, P.; Muangma, N.; Muñoz-Camacho, C.; Nanda, S.; Nelyubin, V.; Neyret, D.; Nuruzzaman, D.; Oh, Y.; Otis, K.; Palmer, A.; Parno, D.; Paschke, K.; Phillips, S.; Poelker, M.; Pomatsalyuk, R.; Posik, M.; Potokar, M.; Prok, K.; Puckett, A.; Qian, X.; Qiang, Y.; Quinn, B.; Rakhman, A.; Reimer, P.; Reitz, B.; Riordan, S.; Roche, J.; Rogan, P.; Ron, G.; Russo, G.; Saenboonruang, K.; Saha, A.; Sawatzky, B.; Shahinyan, A.; Silwal, R.; Singh, J.; Sirca, S.; Slifer, K.; Snyder, R.; Solvignon, P.; Souder, P.; Sperduto, M.; Subedi, R.; Stutzman, M.; Suleiman, R.; Sulkosky, V.; Sutera, C.; Tobias, W.; Troth, W.; Urciuoli, G.; Ulmer, P.; Vacheret, A.; Voutier, E.; Waidyawansa, B.; Wang, D.; Wang, K.; Wexler, J.; Whitbeck, A.; Wilson, R.; Wojtsekhowski, B.; Yan, X.; Yao, H.; Ye, Y.; Ye, Z.; Yim, V.; Zana, L.; Zhan, X.; Zhang, J.; Zhang, Y.; Zheng, X.; Ziskin, V.; Zhu, P.

Author(s)

Beck, A.; Deconinck, Wouter; Huang, J.; Kelleher, Aidan Michael; Kowalski, Stanley B.; ... Show more

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Abstract

We have measured the beam-normal single-spin asymmetry A[subscript n] in the elastic scattering of 1–3 GeV transversely polarized electrons from [superscript 1]H and for the first time from [superscript 4]He, [superscript 12]C, and [superscript 208]Pb. For [superscript 1]H, [superscript 4]He, and [superscript 12]C, the measurements are in agreement with calculations that relate An to the imaginary part of the two-photon exchange amplitude including inelastic intermediate states. Surprisingly, the [superscript 208]Pb result is significantly smaller than the corresponding prediction using the same formalism. These results suggest that a systematic set of new A[subscript n] measurements might emerge as a new and sensitive probe of the structure of heavy nuclei.

Date issued

2012-11

URI

http://hdl.handle.net/1721.1/75781

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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