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Observation of parity nonconservation in moller scattering.

Abstract:
We report a measurement of the parity-violating asymmetry in fixed target electron-electron (Møller) scattering: A(PV)=[-175+/-30(stat)+/-20(syst)] x 10(-9). This first direct observation of parity nonconservation in Møller scattering leads to a measurement of the electron's weak charge at low energy Q(e)(W)=-0.053+/-0.011. This is consistent with the standard model expectation at the current level of precision: sin((2)theta(W)(M(Z))((-)MS)=0.2293+/-0.0024(stat)+/-0.0016(syst)+/-0.0006(theory).
Publication status:
Published

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Journal:
Physical Review Letters More from this journal
Volume:
92
Issue:
18
Pages:
181602
Publication date:
2004-05-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:172778
UUID:
uuid:fb9ea0a4-c10a-4d79-8c9b-679a41ff9ee9
Local pid:
pubs:172778
Source identifiers:
172778
Deposit date:
2012-12-19

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