来自2H-->(e-->,e'n)1H反应的低动量转移下中子的电荷形状因子。
Charge form factor of the neutron at low momentum transfer from the 2H-->(e-->,e'n)1H reaction.
作者信息
Geis E, Kohl M, Ziskin V, Akdogan T, Arenhövel H, Alarcon R, Bertozzi W, Booth E, Botto T, Calarco J, Clasie B, Crawford C B, DeGrush A, Donnelly T W, Dow K, Farkhondeh M, Fatemi R, Filoti O, Franklin W, Gao H, Gilad S, Hasell D, Karpius P, Kolster H, Lee T, Maschinot A, Matthews J, McIlhany K, Meitanis N, Milner R G, Rapaport J, Redwine R P, Seely J, Shinozaki A, Sirca S, Sindile A, Six E, Smith T, Steadman M, Tonguc B, Tschalaer C, Tsentalovich E, Turchinetz W, Xiao Y, Xu W, Zhang C, Zhou Z, Zwart T
机构信息
Arizona State University, Tempe, Arizona 85287, USA.
出版信息
Phys Rev Lett. 2008 Jul 25;101(4):042501. doi: 10.1103/PhysRevLett.101.042501.
We report new measurements of the neutron charge form factor at low momentum transfer using quasielastic electrodisintegration of the deuteron. Longitudinally polarized electrons at an energy of 850 MeV were scattered from an isotopically pure, highly polarized deuterium gas target. The scattered electrons and coincident neutrons were measured by the Bates Large Acceptance Spectrometer Toroid (BLAST) detector. The neutron form factor ratio GEn/GMn was extracted from the beam-target vector asymmetry AedV at four-momentum transfers Q2=0.14, 0.20, 0.29, and 0.42 (GeV/c)2.
我们报告了利用氘核的准弹性电致蜕变对低动量转移下中子电荷形状因子进行的新测量。能量为850 MeV的纵向极化电子从同位素纯的高极化氘气靶散射。散射电子和符合中子由贝茨大接收光谱仪环形探测器（BLAST）测量。在四动量转移Q2 = 0.14、0.20、0.29和0.42（GeV/c）2下，从中子形状因子比GEn/GMn中提取束靶矢量不对称性AedV。
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