作者
KA Aniol, DS Armstrong, Todd Averett, Maud Baylac, Etienne Burtin, John Calarco, GD Cates, Christian Cavata, Zhengwei Chai, CC Chang, J-P Chen, Eugene Chudakov, Evaristo Cisbani, Marius Coman, Daniel Dale, Alexandre Deur, Pibero Djawotho, MB Epstein, Stephanie Escoffier, Lars Ewell, Nicolas Falletto, JM Finn, A Fleck, Bernard Frois, Salvatore Frullani, Juncai Gao, Franco Garibaldi, Ashot Gasparian, GM Gerstner, Ronald Gilman, A Glamazdin, Javier Gomez, Viktor Gorbenko, O Hansen, F Hersman, DW Higinbotham, Richard Holmes, Maurik Holtrop, B Humensky, Sebastien Incerti, Mauro Iodice, CW de Jager, Johann Jardillier, Xiaodong Jiang, MK Jones, J Jorda, Christophe Jutier, W Kahl, JJ Kelly, DH Kim, M-J Kim, MS Kim, Ioannis Kominis, Edgar Kooijman, Kevin Kramer, KS Kumar, Michael Kuss, John LeRose, Raffaele De Leo, M Leuschner, David Lhuillier, Meihua Liang, Nilanga Liyanage, R Lourie, Richard Madey, Sergey Malov, DJ Margaziotis, Frederic Marie, Pete Markowitz, Jacques Martino, Peter Mastromarino, Kathy McCormick, Justin McIntyre, Z-E Meziani, Robert Michaels, Brian Milbrath, GW Miller, Joseph Mitchell, Ludyvine Morand, Damien Neyret, GG Petratos, Roman Pomatsalyuk, JS Price, David Prout, Thierry Pussieux, Gilles Quéméner, RD Ransome, David Relyea, Yves Roblin, Julie Roche, GA Rutledge, PM Rutt, Marat Rvachev, Franck Sabatie, Arunava Saha, PA Souder, Marcus Spradlin, Steffen Strauch, Riad Suleiman, Jeffrey Templon, T Teresawa, James Thompson, Raphael Tieulent, Luminita Todor, BT Tonguc, PE Ulmer, GM Urciuoli, Branislav Vlahovic, Krishni Wijesooriya, R Wilson, Bogdan Wojtsekhowski, Rhett Woo, Wang Xu, Imran Younus, C Zhang, HAPPEX Collaboration
发表日期
2001/6/14
期刊
Physics Letters B
卷号
509
期号
3-4
页码范围
211-216
出版商
North-Holland
简介
We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from the proton. The result is A=−15.05±0.98(stat)±0.56(syst) ppm at the kinematic point 〈θlab〉=12.3° and 〈Q2〉=0.477 (GeV/c)2. Both errors are a factor of two smaller than those of the result reported previously. The value for the strange form factor extracted from the data is (G sE+0.392 G sM)=0.025±0.020±0.014 , where the first error is experimental and the second arises from the uncertainties in electromagnetic form factors. This measurement is the first fixed-target parity violation experiment that used either a “strained” GaAs photocathode to produce highly polarized electrons or a Compton polarimeter to continuously monitor the electron beam polarization.
引用总数
学术搜索中的文章
KA Aniol, DS Armstrong, T Averett, M Baylac, E Burtin… - Physics Letters B, 2001