Search for direct CP violating charge asymmetries in $K^\pm\toπ^\pmπ^+π^-$ and $K^\pm\toπ^\pmπ^0π^0$ decays
| dc.creator | Batley, J. R. | |
| dc.date | 2007-07-04 | |
| dc.date | 2007-10-17 | |
| dc.date.accessioned | 2026-07-07T11:17:32Z | |
| dc.date.available | 2026-07-07T11:17:32Z | |
| dc.description | A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes $A_g=(g^+-g^-)/(g^++g^-)$ in $K^\pm\toπ^\pmπ^+π^-$ and $K^\pm\toπ^\pmπ^0π^0$ decays by the NA48/2 experiment at CERN SPS is presented. A new technique of asymmetry measurement involving simultaneous $K^+$ and $K^-$ beams and a large data sample collected allowed a result of an unprecedented precision. The charge asymmetries were measured to be $A^c_g=(-1.5\pm2.2)\times10^{-4}$ with $3.11\times 10^9$ $K^{\pm}\toπ^\pmπ^+π^-$ decays, and $A^n_g=(1.8\pm1.8)\times10^{-4}$ with $9.13\times 10^7$ $K^{\pm}\toπ^\pmπ^0π^0$ decays. The precision of the results is limited mainly by the size of the data sample. | |
| dc.description | 29 pages, 9 figures. An updated version accepted by the EPJC | |
| dc.identifier | https://arxiv.org/abs/0707.0697 | |
| dc.identifier | http://arxiv.org/abs/0707.0697 | |
| dc.identifier | Eur.Phys.J.C52:875-891,2007 | |
| dc.identifier | doi:10.1140/epjc/s10052-007-0456-7 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193041 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for direct CP violating charge asymmetries in $K^\pm\toπ^\pmπ^+π^-$ and $K^\pm\toπ^\pmπ^0π^0$ decays | |
| dc.type | text |