Study of direct CP violation in $B^{\pm} \to J/ψK^{\pm}(π^{\pm})$ decays
| dc.creator | D0 Collaboration | |
| dc.creator | Abazov, V. | |
| dc.date | 2008-02-22 | |
| dc.date.accessioned | 2026-07-07T11:56:16Z | |
| dc.date.available | 2026-07-07T11:56:16Z | |
| dc.description | We present a search for direct CP violation in $B^{\pm} \to J/ψK^{\pm}(π^{\pm})$ decays. The event sample is selected from 2.8 fb$^{-1}$ of $p\bar{p}$ collisions recorded by D0 experiment in Run II of the Fermilab Tevatron Collider. The charge asymmetry $A_{CP}(B^+ \to J/ψK^+) = +0.0075 \pm 0.0061$(stat.)$\pm 0.0027$(syst.) is obtained using a sample of approximately 40 thousand $B^{\pm} \to J/ψK^{\pm}$ decays. The achieved precision is of the same level as the expected deviation predicted by some extensions of the standard model. We also measured the charge asymmetry $A_{CP}(B^+ \to J/ψπ^+) = -0.09 \pm 0.08$(stat.)$\pm 0.03$(syst.). | |
| dc.description | 7 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0802.3299 | |
| dc.identifier | http://arxiv.org/abs/0802.3299 | |
| dc.identifier | Phys.Rev.Lett.100:211802,2008 | |
| dc.identifier | doi:10.1103/PhysRevLett.100.211802 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205526 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of direct CP violation in $B^{\pm} \to J/ψK^{\pm}(π^{\pm})$ decays | |
| dc.type | text |