Analysis of the Kpi hadronic state interaction using D into K-pi+mu+nu semileptonic decays from the FOCUS experiment
| dc.creator | Fermilab FOCUS Collaboration | |
| dc.creator | Link, J. M. | |
| dc.date | 2005-10-19 | |
| dc.date.accessioned | 2026-07-07T06:46:27Z | |
| dc.date.available | 2026-07-07T06:46:27Z | |
| dc.description | We present a four-body semileptonic charm decay D^+ into K^-pi^+mu^+nu analysis in the range of 0.65 GeV/c^2 < mkpi < 1.5 GeV/c^2. We observe a low mass scalar contribution of 5.30 +- 0.74 + 0.99 - 0.96 % with respect to the total D^+ into K^-pi^+mu^+nu decay, compatible with the phase shift found by the LASS elastic scattering experiment. For the K*(892) resonance, we obtain a mass of 895.41 +- 0.32 + 0.35 - 0.43 MeV/c^2, a width of 47.79 +- 0.86 + 1.32 - 1.06 MeV/c^2, and a Blatt-Weisskopf damping factor parameter of 3.96 +- 0.54 + 1.31 - 0.90 GeV^(-1). We also report 90% CL upper limits of 4% and 0.64% for the branching ratios Gamma(D^+ into K*(1680)mu^+nu)/Gamma(D^+ into K^-pi^+mu^+nu) and Gamma(D^+ into K*_0(1430)mu^+nu)/Gamma(D^+ into K^-pi^+mu^+nu), respectively. | |
| dc.description | 4-pages, talk presented at 12th International QCD05 Conference (QCD05), 4-9 July 2005 Montpellier (France) | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0510053 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0510053 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/103341 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Analysis of the Kpi hadronic state interaction using D into K-pi+mu+nu semileptonic decays from the FOCUS experiment | |
| dc.type | text |