Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-02-19
Phys.Rev.D64:033001,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
References added. The part on the atomic-parity violation is re-analyzed with the updated data. A discussion on the radiative
Scientific paper
10.1103/PhysRevD.64.033001
The recent measurement on the muon anomalous magnetic moment $a_\mu$ shows a $2.6\sigma$ deviation from the standard model value. We show that it puts an interesting bound on the mass of the second generation leptoquarks. To account for the data the leptoquark must have both the left- and right-handed couplings to the muon. Assuming that the couplings have electromagnetic strength, the mass is restricted in the range $0.7 {\rm TeV} < M_{\rm LQ} < 2.2$ TeV at 95% C.L. We also discuss constraints coming from other low energy and high energy experiments. If the first-second-generation universality is assumed, constraints come from the atomic parity violation and charged-current universality. We show that coexistence with other leptoquarks can satisfy these additional constraints and at the same time do not affect the $a_\mu$.
No associations
LandOfFree
Muon Anomalous Magnetic Moment and Leptoquark Solutions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Muon Anomalous Magnetic Moment and Leptoquark Solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Muon Anomalous Magnetic Moment and Leptoquark Solutions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-212520