New Measurement of BR(D+ ->Rho0 Mu+ Nu) / BR(D+ ->K*0 Mu+ Nu) Branching Ratio
The FOCUS collaboration: J. M. Link, et al
TL;DR
This paper reports a new measurement of the ratio of branching fractions for D+ meson decays into rho0 and K*0 mesons with mu+ neutrino, based on Fermilab data, providing more precise charm decay data.
Contribution
It provides the first precise measurement of the charm semileptonic branching ratio ratio using Fermilab data, improving the understanding of charm decay dynamics.
Findings
Branching ratio ratio BR(D+ -> rho0 mu+ nu)/BR(D+ -> K*0 mu+ nu) = 0.041 ± 0.006 (stat) ± 0.004 (syst)
Sample sizes of 320±44 and 11372±161 events for the respective decay modes
Enhanced precision in charm semileptonic decay measurements
Abstract
Using data collected by the FOCUS experiment at Fermilab, we present a new measurement of the charm semileptonic branching ratio BR(D+ -> rho0 mu+ nu)/BR(D+ -> K*0 mu+ nu). From a sample of 320+-44 and 11372+-161 D+ -> rho0 mu+ nu and D+ -> K*0 mu+ nu events respectively, we find BR(D+ -> rho0 mu+ nu)/BR(D+ -> K*0 mu+ nu)=0.041+-0.006(stat)+-0.004(syst).
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.