The strangeness content of the proton from parity violating electron scattering at JLab
Conference
·
OSTI ID:754037
The authors have measured the parity violating asymmetry in the cross section for elastic scattering of longitudinally polarized electrons from protons at 3.36 GeV incident energy and 0.48 GeV{sup 2}/c{sup 2} momentum transfer at JLab. From their 1998 run, this asymmetry is {minus}14.5{+-}2.2 ppm, consistent with the Standard Model with no contribution from strange quarks. They extract the combination of strange form factors G{sup 3}{sub E} + 0.39G{sup 3}{sub M}=0.023{+-}0.034(stat){+-}0.022(syst){+-}0.026({delta}G{sup +n}{sub E}), where the last error arises from the neutron electric form factor.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 754037
- Report Number(s):
- DOE/ER/40150-1344; JLAB-PHY-99-15
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurements of the strangeness content of the proton through parity violating electron scattering at JLAB
Measurement of the Neutral Weak Form Factors of the Proton
Measurement of the neutral weak form factors of the proton
Conference
·
Tue Sep 01 00:00:00 EDT 1998
·
OSTI ID:756763
Measurement of the Neutral Weak Form Factors of the Proton
Journal Article
·
Sun Jan 31 23:00:00 EST 1999
· Physical Review Letters
·
OSTI ID:954721
Measurement of the neutral weak form factors of the proton
Journal Article
·
Sun Jan 31 23:00:00 EST 1999
· Physical Review Letters
·
OSTI ID:328559