Effect of asymmetric strange seas and isospin-violating parton distribution functions on sin2θw measured in the NuTeV experiment
Document Type
Article
Publication Date
6-1-2002
Abstract
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) = s̄(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.
Publication Source (Journal or Book title)
Physical Review D - Particles, Fields, Gravitation and Cosmology
First Page
1111031
Last Page
1111034
Recommended Citation
Zeller, G., McFarland, K., Adams, T., Alton, A., Avvakumov, S., De Barbaro, L., De Barbaro, P., Bernstein, R., Bodek, A., Bolton, T., Brau, J., Buchholz, D., Budd, H., Bugel, L., Conrad, J., Drucker, R., Fleming, B., Frey, R., Formaggio, J., Goldman, J., Goncharov, M., Harris, D., Johnson, R., Kim, J., Koutsoliotas, S., Lamm, M., Marsh, W., Mason, D., McDonald, J., McNulty, C., Naples, D., Nienaber, P., & Romosan, A. (2002). Effect of asymmetric strange seas and isospin-violating parton distribution functions on sin2θw measured in the NuTeV experiment. Physical Review D - Particles, Fields, Gravitation and Cosmology, 65 (11), 1111031-1111034. https://doi.org/10.1103/PhysRevD.65.111103