PROTON COMPTON-EFFECT - A MEASUREMENT OF THE ELECTRIC AND MAGNETIC POLARIZABILITIES OF THE PROTON

被引：158

作者：

FEDERSPIEL, FJ ^{[1
]}

EISENSTEIN, RA ^{[1
]}

LUCAS, MA ^{[1
]}

MACGIBBON, BE ^{[1
]}

MELLENDORF, K ^{[1
]}

NATHAN, AM ^{[1
]}

ONEILL, A ^{[1
]}

WELLS, DP ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT PHYS,CHAMPAIGN,IL 61820

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.67.1511

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the Compton-scattering cross section on hydrogen at 60-degrees and 135-degrees using monochromatic tagged photons spanning the energy between 32 and 72 MeV. These data, when analyzed with a low-energy expansion of the scattering cross-section formula, provide a determination of values for the electric and magnetic polarizabilities of the proton. We find, respectively, alphaBAR = (10.9 +/- 2.2 +/- 1.3) x 10(-4) fm3 and betaBAR = (3.3 -/+ 2.2 -/+ 1.3) x 10(-4) fm3, assuming the model-independent constraint alphaBAR + betaBAR = 14.2 x 10(-4) fm3.

引用

页码：1511 / 1514

页数：4

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