Ds 衰变中 Phi μ ν 形式因子比值的新测量
高能物理 - 实验
2012-08-27 v1
摘要
Using a large sample of Ds to Phi mu nu decays collected by the FOCUS photoproduction experiment at Fermilab, we present new measurements of two semileptonic form factor ratios: rV and r2. We find rV = 1.549 \pm 0.250 \pm 0.145 and r2 = 0.713 \pm 0.202 \pm 0.266. These values are consistent with the rV and r2 form factors measured for the process D+ to K*bar mu nu.
引用
@article{arxiv.hep-ex/0401001,
title = {New Measurements of the Ds to Phi mu nu Form Factor Ratios},
author = {The FOCUS Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0401001},
year = {2012}
}
备注
11 pages 5 figures