Browsing by Author "King, P.M."

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    Measurement of the neutron radius of $^{208}\text{Pb}$ through parity violation in electron scattering
    (American Physical Society, 2012) Abrahamyan, S.; Ahmed, Z.; Albataineh, H.; Aniol, K.; Armstrong, D.S.; Armstrong, W.; Averett, T.; Babineau, B.; Barbieri, A.; Bellini, V.; Beminiwattha, R.; Benesch, J.; Benmokhtar, F.; Bielarski, T.; Boeglin, W.; Camsonne, A.; Canan, M.; Carter, P.; Cates, G.D.; Chen, C.; Chen, J.-P.; Hen, O.; Cusanno, F.; Dalton, M.M.; De Leo, R.; De Jager, K.; Deconinck, W.; Decowski, P.; Deng, X.; Deur, A.; Dutta, D.; Etile, A.; Flay, D.; Franklin, G.B.; Friend, M.; Frullani, S.; Fuchey, E.; Garibaldi, F.; Gasser, E.; Gilman, R.; Giusa, A.; Glamazdin, A.; Gomez, J.; Grames, J.; Gu, C.; Hansen, O.; Hansknecht, J.; Higinbotham, D.W.; Holmes, R.S.; Holmstrom, T.; Horowitz, C.J.; Hoskins, J.; Huang, J.; Hyde, C.E.; Itard, F.; Jen, C.-M.; Jensen, E.; Jin, G.; Johnston, S.; Kelleher, A.; Kliakhandler, K.; King, P.M.; Kowalski, S.; Kumar, K.S.; Leacock, J.; Leckey, J.; Lee, J.H.; Lerose, J.J.; Lindgren, R.; Liyanage, N.; Lubinsky, N.; Mammei, J.; Mammoliti, F.; Margaziotis, D.J.; Markowitz, P.; McCreary, A.; McNulty, D.; Mercado, L.; Meziani, Z.-E.; Michaels, R.W.; Mihovilovic, M.; Muangma, N.; Munoz-Camacho, C.; Nanda, S.; Nelyubin, V.; Nuruzzaman, N.; Oh, Y.; Palmer, A.; Parno, D.; Paschke, K.D.; Phillips, S.K.; Poelker, B.; Pomatsalyuk, R.; Posik, M.; Puckett, A.J.R.; Quinn, B.; Rakhman, A.; Reimer, P.E.; Riordan, S.; Rogan, P.; Ron, G.; Russo, G.; Saenboonruang, K.; Saha, A.; Sawatzky, B.; Shahinyan, A.; Silwal, R.; Sirca, S.; Slifer, K.; Solvignon, P.; Souder, P.A.; Sperduto, M.L.; Subedi, R.; Suleiman, R.; Sulkosky, V.; Sutera, C.M.; Tobias, W.A.; Troth, W.; Urciuoli, G.M.; Waidyawansa, B.; Wang, D.; Wexler, J.; Wilson, R.; Wojtsekhowski, B.; Yan, X.; Yao, H.; Ye, Y.; Ye, Z.; Yim, V.; Zana, L.; Zhan, X.; Zhang, J.; Zhang, Y.; Zheng, X.; Zhu, P.
    We report the first measurement of the parity-violating asymmetry $A_{\text{PV}}$ in the elastic scattering of polarized electrons from $^{208}\text{Pb}. A_{\text{PV}}$ is sensitive to the radius of the neutron distribution $(R_n)$. The result $A_{PV}=0.656±0.060(\text{stat})±0.014(\text{syst})  \text{ppm}$ corresponds to a difference between the radii of the neutron and proton distributions $R_n−R_p=0.33^{+0.16}_{−0.18}  \text{fm}$ and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.