论文标题

由于非指数核振幅而引起的伯特相变,以及使用$ t $依赖相的可能性来确定弹性散射数据的$ρ$参数

Bethe phase variation due to a non-exponential nuclear amplitude and the possibility of using a $t$-dependent phase to determine the $ρ$-parameter from elastic scattering data

论文作者

Grafstrom, P., Ryskin, M. G.

论文摘要

我们评估了单相交换与“核能”高能$ pp $散射幅度之间的阶段的可能偏差(从常规的CAHN结果),这是由小$ t \至0 $区域中的,这是由更复杂的(不仅是$ $ $ exp(bt)$)行为引起的。此外,我们研究了$ρ(t)\ equiv $ real/imaginary振幅比率的$ t $依赖性的可能作用。事实证明,这两种效果都很小 - 远小于对从弹性质子 - 蛋白蛋白散射数据中提取的$ρ(t = 0)$的实验准确性的影响。

We evaluate the possible deviation (from the conventional Cahn's result) of the phase between the one-photon-exchange and the `nuclear' high energy $pp$ scattering amplitudes in a small $t\to 0$ region caused by a more complicated (not just $exp(Bt)$) behaviour of the nuclear amplitude. Furthermore we look at the possible role of the $t$-dependence of the $ρ(t) \equiv$ Real/Imaginary amplitude ratio. It turns out that both effects are rather small - much smaller than to have any influence on the experimental accuracy of $ρ(t=0)$ extracted from the elastic proton-proton scattering data.

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