Observation of the Decay K- -> pi- mu+ mu- and Measurements of the Branching Ratios for K+/- -> pi+/- mu+ mu-
| dc.creator | Park, H. K. | |
| dc.date | 2001-10-16 | |
| dc.date.accessioned | 2026-07-07T10:32:07Z | |
| dc.date.available | 2026-07-07T10:32:07Z | |
| dc.description | Using data collected with the HyperCP (E871) spectrometer during the 1997 fixed-target run at Fermilab, we report the first observation of the decay K- -> pi- mu+ mu- and new measurements of the branching ratios for K+/- -> pi+/- mu+ mu- . By combining the branching ratios for the K+ and K- decays, we measure the ratio (K+/- -> pi+/- mu+ mu-)/(K+/- -> all) = (9.8 +/- 1.0 +/- 0.5)x10^(-8). The CP asymmetry between the K+ and K- decay modes = -0.02 +/- 0.11 +/- 0.04. | |
| dc.description | 4 pages, 4 figures, submitted to PRL | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0110033 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0110033 | |
| dc.identifier | Phys.Rev.Lett.88:111801,2002 | |
| dc.identifier | doi:10.1103/PhysRevLett.88.111801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178650 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Observation of the Decay K- -> pi- mu+ mu- and Measurements of the Branching Ratios for K+/- -> pi+/- mu+ mu- | |
| dc.type | text |