MEASUREMENTS OF THE ELECTRIC AND MAGNETIC FORM-FACTORS OF THE PROTON FROM Q(2)=1.75 TO 8.83 (GEV/C)(2)

被引：78

作者：

BOSTED, PE

ANDIVAHIS, L

LUNG, A

STUART, LM

ALSTER, J

ARNOLD, RG

CHANG, CC

DIETRICH, FS

DODGE, W

GEARHART, R

GOMEZ, J

GRIFFIOEN, KA

HICKS, RS

HYDEWRIGHT, CE

KEPPEL, C

KUHN, SE

LICHTENSTADT, J

MISKIMEN, RA

PETERSON, GA

PETRATOS, GG

ROCK, SE

ROKNI, S

SAKUMOTO, WK

SPENGOS, M

SWARTZ, K

SZALATA, Z

TAO, LH

机构：

[1] UNIV CALIF DAVIS,DAVIS,CA 95616

[2] CONTINUOUS ELECTRON BEAM ACCELERATOR FACIL,NEWPORT NEWS,VA 23606

[3] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

[4] UNIV MARYLAND,COLLEGE PK,MD 20742

[5] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899

[6] UNIV MASSACHUSETTS,AMHERST,MA 01003

[7] STANFORD UNIV,STANFORD,CA 94305

[8] STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305

[9] UNIV ROCHESTER,ROCHESTER,NY 14627

[10] UNIV PENN,PHILADELPHIA,PA 19104

[11] TEL AVIV UNIV,IL-69978 TEL AVIV,ISRAEL

[12] UNIV WASHINGTON,SEATTLE,WA 98195

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.68.3841

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The proton elastic electric and magnetic form factors, G(Ep)(Q2) and G(Mp)(Q2), have been separately measured in the range Q2=1.75 to 8.83 (GeV/c)2, More than doubling the Q2 range of previous data. Scaled by the dipole fit, G(D)(Q2), the results for G(Mp)(Q2)/mu(p)G(D)(Q2) decrease smoothly from 1.05 to 0.91, while G(Ep)(Q2)/G(D)(Q2) is consistent with unity. Comparisons are made to QCD sum rule, di-quark, constituent quark, and vector meson dominance models, none of which agree with all of the new data. The ratio Q2F2/F1 approaches a constant value for Q2 > 3 (GeV/c)2.

引用

页码：3841 / 3844

页数：4

共 24 条

[1] 1.6 GEV/C CHARGED PARTICLE SPECTROMETER FACILITY AT STANFORD LINEAR ACCELERATOR CENTER [J].