Measurement of the proton's neutral weak magnetic form factor

被引：219

作者：

Mueller, B

Beck, DH

Beise, EJ

Candell, E

Cardman, L

Carr, R

DiBari, RC

Dodson, G

Dow, K

Duncan, F

Farkhondeh, M

Filippone, BW

Forest, T

Gao, H

Korsch, W

Kowalski, S

Lung, A

McKeown, RD

Mohring, R

Napolitano, J

Nilsson, D

Pitt, M

Simicevic, N

Terburg, B

Wells, SP

机构：

[1] UNIV ILLINOIS,URBANA,IL 61801

[2] UNIV MARYLAND,COLLEGE PK,MD 20742

[3] RENSSELAER POLYTECH INST,TROY,NY 12180

[4] MIT,NUCL SCI LAB,BATES LINEAR ACCELERATOR CTR,CAMBRIDGE,MA 02139

[5] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 20期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.78.3824

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurement of the parity-violating asymmetry in elastic electron scattering from the proton. The asymmetry depends on the neutral weak magnetic form factor of the proton which contains new information on the contribution of strange quark-antiquark pairs to the magnetic moment of the proton. We obtain the value G(M)(Z) = 0.34 +/- 0.09 +/- 0.04 +/- 0.05 n.m. at Q(2) = 0.1 (GeV/c)(2).

引用

页码：3824 / 3827

页数：4

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