TY - JOUR
T1 - Noncommutative magnetic moment, fundamental length, and lepton size
AU - Adorno, T. C.
AU - Gitman, D. M.
AU - Shabad, A. E.
PY - 2012/7/6
Y1 - 2012/7/6
N2 - Upper bounds on fundamental length are discussed that follow from the fact that a magnetic moment is inherent in a charged particle in noncommutative (NC) electrodynamics. The strongest result thus obtained for the fundamental length is still larger than the estimate of electron or muon size achieved following the Brodsky-Drell and Dehlmet approach to lepton compositeness. This means that NC electrodynamics cannot alone explain the whole existing discrepancy between the theoretical and experimental values of the muon magnetic moment. On the contrary, as measurements and calculations are further improved, the fundamental length estimate based on electron data may go down to match its compositeness radius.
AB - Upper bounds on fundamental length are discussed that follow from the fact that a magnetic moment is inherent in a charged particle in noncommutative (NC) electrodynamics. The strongest result thus obtained for the fundamental length is still larger than the estimate of electron or muon size achieved following the Brodsky-Drell and Dehlmet approach to lepton compositeness. This means that NC electrodynamics cannot alone explain the whole existing discrepancy between the theoretical and experimental values of the muon magnetic moment. On the contrary, as measurements and calculations are further improved, the fundamental length estimate based on electron data may go down to match its compositeness radius.
UR - http://www.scopus.com/inward/record.url?scp=84863837211&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.86.027702
DO - 10.1103/PhysRevD.86.027702
M3 - Article
AN - SCOPUS:84863837211
SN - 1550-7998
VL - 86
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 2
M1 - 027702
ER -