论文标题
首先观察大的缺失摩托明（E，E'P）横截面缩放和核中相关对优势的发作
First Observation of Large Missing-Momentum (e,e'p) Cross-Section Scaling and the onset of Correlated-Pair Dominance in Nuclei
论文作者
论文摘要
我们报告了$ x_b $ - 尺寸为$（e，e'p）$横截面比的首次测量，而相对于大型缺失莫曼特的氘，$ 350 \ leq p_ {miss} \ leq 600 $ mev/c。观察到的缩放范围在$ 0.7 \ leq x_b \ leq 1.8 $的运动范围内，其宽度明显远大于$ 1.4 \ leq x_b \ leq x_b \ leq 1.8 $先前以含$（E，E，E'）$交叉切片比率。 $ x_b $积分的横截面比率变为恒定（即比例尺），从$ p_ {miss} \ of k_f $，核费米动量。与理论计算相比，我们发现与高缺失摩托车（$> 375 $ MEV/c）的广义接触形式主义计算有很好的一致性，这表明观察到的缩放量表来自与短距离相关（SRC）对的核子相互作用的结果。对于低缺失的摩托马，平均场计算与$ p_ {miss} \ le k_f $的数据表示良好，并提出对测得的横截面比率的贡献是从单个，无关的，核子散射出的，不可忽视的核，最高可达$ p_ {miss} {miss} \ 350 $ mev/c。因此，Srcs在$ p_ {miss} \ 350 $ meV/c的核中占主导地位，远高于$ k_f \ \ 250 $ meV/c/c的核费米表面。
We report the first measurement of $x_B$-scaling in $(e,e'p)$ cross-section ratios off nuclei relative to deuterium at large missing-momentum of $350 \leq p_{miss} \leq 600$ MeV/c. The observed scaling extends over a kinematic range of $0.7 \leq x_B \leq 1.8$, which is significantly wider than $1.4 \leq x_B \leq 1.8$ previously observed for inclusive $(e,e')$ cross-section ratios. The $x_B$-integrated cross-section ratios become constant (i.e., scale) beginning at $p_{miss}\approx k_F$, the nuclear Fermi momentum. Comparing with theoretical calculations we find good agreement with Generalized Contact Formalism calculations for high missing-momentum ($> 375$ MeV/c), suggesting the observed scaling results from interacting with nucleons in short-range correlated (SRC) pairs. For low missing-momenta, mean-field calculations show good agreement with the data for $p_{miss}\le k_F$, and suggest that contributions to the measured cross-section ratios from scattering off single, un-correlated, nucleons are non-negligible up to $p_{miss}\approx 350$ MeV/c. Therefore, SRCs become dominant in nuclei at $p_{miss}\approx 350$ MeV/c, well above the nuclear Fermi Surface of $k_F \approx 250$ MeV/c.
