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Strange-quark contributions to parity-violating asymmetries in the forward g0 electron-proton scattering experiment (2005) |
- Arvieux, J,
- Asaturyan, R,
- Averett, T,
- Bailey, S L,
- Batigne, G,
- Beck, D H,
- Beise, E J,
- Benesch, J,
- Bimbot, L,
- Birchall, J,
- Biselli, A,
- Bosted, P,
- Boukobza, E,
- Breuer, H,
- Carlini, R,
- Carr, R,
- Chant, N,
- Chao, Y-C,
- Chattopadhyay, S,
- Clark, R,
- Covrig, S,
- Cowley, A,
- Dale, D,
- Davis, C,
- Falk, W,
- Finn, J M,
- Forest, T,
- Franklin, G,
- Furget, C,
- Gaskell, D,
- Grames, J,
- Griffioen, K A,
- Grimm, K,
- Guillon, B,
- Guler, H,
- Hannelius, L,
- Hasty, R,
- Hawthorne Allen, A,
- Horn, T,
- Johnston, K,
- Jones, M,
- Kammel, P,
- Kazimi, R,
- King, P M,
- Kolarkar, A,
- Korkmaz, E,
- Korsch, W,
- Kox, S,
- Kuhn, J,
- Lachniet, J,
- Lee, L,
- Lenoble, J,
- Liatard, E,
- Liu, J,
- Loupias, B,
- Lung, A,
- MacLachlan, G A,
- Martin, J W,
- McFarlane, K W,
- McKee, D W,
- McKeown, R D,
- Merchez, F,
- Mkrtchyan, H,
- Moffit, B,
- Morlet, M,
- Nakagawa, I,
- Nakahara, K,
- Nakos, M,
- Neveling, R,
- Niccolai, S,
- Ong, S,
- Page, S,
- Papavassiliou, V,
- Pate, S F,
- Phillips, S K,
- Pitt, M L,
- Poelker, M,
- Porcelli, T A,
- Quéméner, G,
- Quinn, B,
- Ramsay, W D,
- Rauf, A W,
- Real, J-S,
- Roche, J,
- Roos, P,
- Rutledge, G A,
- Secrest, J,
- Simicevic, N,
- Smith, G R,
- Spayde, D T,
- Stepanyan, S,
- Stutzman, M,
- Sulkosky, V,
- Tadevosyan, V,
- Tieulent, R,
- Van Oers, W,
- Voutier, E,
- Vulcan, W,
- Warren, G,
- Wells, S P,
- Williamson, S E,
- Wood, S A,
- Yan, C,
- Yun, J,
- Zeps, V
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Abstract |
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We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 < or =Q2 < or =1.0 GeV2. These asymmetries, arising from interference of the electromagnetic and neutral weak interactions, are sensitive to strange-quark contributions to the currents of the proton. The measurements were made at Jefferson Laboratory using a toroidal spectrometer to detect the recoiling protons from a liquid hydrogen target. The results indicate nonzero, Q2 dependent, strange-quark contributions and provide new information beyond that obtained in previous experiments..
Department of Physics, College of William and Mary, Williamsburg, VA 23187, USA. |
Publication details |
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