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Bound on nonlocal scale from g − 2 of muon in a nonlocal W-S model

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Zeitschrift für Physik C Particles and Fields

Abstract

We consider the nonlocal version of the Weinberg Salam model (following Kleppe et al.) with a finite parameter Λ signifying a fundamental length scale. We calculate the extra contributions to the anomalous magnetic moment of the muon coming from the nonlocal structure in this model. We find that the nonlocal contribution can be comparable to weak contributions and goes to increase theoretical estimates. We use this calculation to determine the limit on the scale of nonlocality. We obtain the result 1/Λ ≲ 3 × 10−16cm, which could be improved when present experimental errors narrow down.

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Authors and Affiliations

  1. Department of Physics, I.I.T Kanpur, Kanpur, 208016, India

    Gaitri Saini & Satish D. Joglekar

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  1. Gaitri Saini
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  2. Satish D. Joglekar
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Correspondence to Satish D. Joglekar.

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Saini, G., Joglekar, S.D. Bound on nonlocal scale from g − 2 of muon in a nonlocal W-S model. Z Phys C - Particles and Fields 76, 343–353 (1997). https://doi.org/10.1007/s002880050559

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  • DOI: https://doi.org/10.1007/s002880050559

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