论文标题
在非常高的后坐力动量和大型4-Momentum Transfers（$ Q^{2} $）上，Deuteron电积分的横截面测量值
Cross Section Measurements of Deuteron Electro-Disintegration at Very High Recoil Momenta and Large 4-Momentum Transfers ($Q^{2}$)
论文作者
论文摘要
$^{2} $ h $（e，e'p）n $横截面以负4-momentum转移为$ q^{2} = 4.5 \ pm0.5 $（gev/c）$ q^{2} $^{2} $和$ q^{2} $ q^{2} = 3.5 \ pm0.5 $（gp pm0.5 $（geev）， $ p _ {\ mathrm {r}} \ sim $ 1.0 gev/c。数据是在固定中子后退角度获得的$ 5^{\ circ} \leqθ_{nq} \ leq95^{\ circ} $相对于3-momentum传输$ \ vec {q} $。新数据与以前达到$ p _ {\ mathrm {r}}} \ sim550 $ mev/c的先前数据一致。在$θ_{nq} = 35^{\ circ} $和$ 45^{\ circ} $，最终状态互动（FSI），梅森交换电流（MEC）和isobar配置（IC）被抑制，并且平面波脉冲脉冲近似（PWIA）提供了主导横截面的贡献。将新数据与最新的理论计算进行了比较，而后坐力动量$ p _ {\ mathrm {r}}> 700 $ MEV/c的反应分歧很大。
The $^{2}$H$(e,e'p)n$ cross sections have been measured at negative 4-momentum transfers of $Q^{2} = 4.5\pm0.5$ (GeV/c)$^{2}$ and $Q^{2} = 3.5\pm0.5$ (GeV/c)$^{2}$ reaching neutron recoil (missing) momenta up to $p_{\mathrm{r}}\sim$1.0 GeV/c. The data have been obtained at fixed neutron recoil angles $5^{\circ}\leqθ_{nq}\leq95^{\circ}$ with respect to the 3-momentum transfer $\vec{q}$. The new data agree well with the previous data which reached $p_{\mathrm{r}}\sim550$ MeV/c. At $θ_{nq}=35^{\circ}$ and $45^{\circ}$, final state interactions (FSI), meson exchange currents (MEC) and isobar configurations (IC) are suppressed and the plane wave impulse approximation (PWIA) provides the dominant cross section contribution. The new data are compared to recent theoretical calculations, and a significant disagreement for recoil momenta $p_{\mathrm{r}}>700$ MeV/c is observed.
