Phys. Rev. D 65, 111103(R) (2002) [4 pages]Effect of asymmetric strange seas and isospin-violating parton distribution functions on sin2θW measured in the NuTeV experimentSee Also: Erratum
The NuTeV Collaboration recently reported a value of sin2θW measured in neutrino-nucleon scattering that is 3 standard deviations above the standard model prediction. This result is derived assuming that (1) the strange sea is quark-antiquark symmetric, s(x)=s̅ (x), and (2) up and down quark distributions are symmetric under the simultaneous interchange of u↔d and p↔n. We report the impact of violations of these symmetries on sin2θW and discuss the theoretical and experimental constraints on such asymmetries. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.65.111103
DOI:
10.1103/PhysRevD.65.111103
PACS:
11.30.Hv, 12.15.Mm, 12.38.Qk, 13.15.+g
See AlsoErratum: G. P. Zeller et al., Erratum: “Effect of asymmetric strange seas and isospin-violating parton distribution functions on sin2θW measured in the NuTeV experiment” [Phys. Rev. D 65, 111103 (2002)], Phys. Rev. D 67, 119902 (2003). |
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