Measurement of the muon anomaly to high and even higher precision
نویسندگان
چکیده
منابع مشابه
Measurement of the muon anomaly to high and even higher precision
Our recent series of measurements at Brookhaven National Laboratory determined the muon anomalous magnetic moment aμ to a precision of 0.5 ppm. The final result—representing the average of five running periods using both positive and negative muons—is a±μ = 11 659 208(6) × 10 . It lies 2.7 standard deviations above the standard model expectation, which is based on updates given at this Workshop...
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In this paper we consider gauge invariant nonminimal couplings of the vector and axial vector components of the torsion tensor to the Standard model fermions and abelian gauge fields. We then determine the constraints on the unknown parameters of the torsion action from its contribution to the muon anomaly. The bounds on the torsion mass and coupling obtained from muon anomaly are finally compa...
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Torsion contraints from the recent precision measurement of the muon anomaly
In this paper we consider non-minimal couplings of the Standard Model fermions to the vector (trace) and axial vector (pseudo-trace) components of the torsion tensor. We then evaluate the contributions of these vector and axial vector components to the muon anomaly and use the recent precision measurement of the muon anomaly to derive constraints on the torsion parameters. E-mail: [email protected]...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2005
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2005.02.027