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Constraints on the nucleon strange form factors at Q2 ∼ 0.1  GeV2

Abstract:

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering angle 〈 θlab 〉 = 6.0○, with the result APV = ( - 1.14 ± 0.24 ( stat ) ± 0.06 ( syst ) ) × 10-6. From this we extract, at Q2 = 0.099   GeV2, the strange form factor combination {Mathematical expression} where the first two errors are experimental and the last error is due to the uncertainty in the n...

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Journal:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume:
635
Issue:
5-6
Pages:
275-279
Publication date:
2006-04-20
DOI:
ISSN:
0370-2693
URN:
uuid:53051f32-c537-49ec-b818-2577050a94ca
Source identifiers:
172796
Local pid:
pubs:172796
Language:
English

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