Can four-fermion contact interactions at one-loop explain the new atomic parity violation results?

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2000-12-01

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Gusso, A. [UNESP]

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We investigate the possibility that four-fermion contact interactions give rise to the observed deviation from the standard model prediction for the weak charge of cesium, through one-loop contributions. We show that the presence of loops involving the third generation quarks can explain such a deviation.

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European Physical Journal C, v. 17, n. 1, p. 107-111, 2000.