Recent experimental results for the pi+ electric form factor from Jefferson Lab [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2007. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Additional Creators:
- Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The pion holds a special role in our quest to understand hadrons in terms of the underlying degrees of freedom of QCD. It is the lightest mass QCD system and is used as a test case for all models of hadronic structure. While the ?+ form factor (F?) can be calculated using perturbative QCD at large Q2, its calculation in the intermediate Q2 transition region is more complex and model-dependent. Over the past several years, two experiments have been mounted at Jefferson Lab to measure F? over the range of Q2 = 0.6 to 2.45 GeV2. The technique utilizes a precision Rosenbluth separation of the p(e, e'?+)n reaction at low -t. F? is then extracted from the separated longitudinal response function (?L) with the aid of a model. The recent Jefferson Lab data are reviewed, with special emphasis on the extraction of the form factor from the ?L data.
- Published through SciTech Connect., 10/01/2007., "jlab-phy-06-635", " 7418361", " doe/er/40150-4435", Paper compiled for APS Group on Hadronic Physics Meeting., and Huber, Garth.
- Funding Information:
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