Strange Quark Contribution to the Proton Spin, from Elastic e-vectorp and {nu}p Scattering
Journal Article
·
· AIP Conference Proceedings
- Physics Department, New Mexico State University, Las Cruces NM 88003 (United States)
The strangeness contribution to the vector and axial form factors of the proton is presented for momentum transfers in the range 0.45 < Q2 < 1.0 GeV2. The results are obtained via a combined analysis of forward-scattering parity-violating elastic e-vectorp asymmetry data from the G0 and HAPPEx experiments at Jefferson Lab, and elastic {nu}p and {nu}-barp scattering data from Experiment 734 at Brookhaven National Laboratory. The combination of the two data sets allows for the simultaneous extraction of G{sub E}{sup s}, G{sub M}{sup s}, and G{sub A}{sup s} over a significant range of Q2 for the very first time. Determination of the strange axial form factor G{sub A}{sup s} is vital to an understanding of the strange quark contribution to the proton spin.
- OSTI ID:
- 21063942
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 915; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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