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IHEP 2003 - 29 | |
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| V.N.Roinishvili (JINR, Dubna, Russia; IPAS, Tbilisi, Georgia) | ||
| A Method for CP -Asymmetries Measurements in Bd-->pi+pi- Decay | ||
| Protvino, 2003.- p.11, figs. 7, refs.:11. | ||
Both, $A_{mix}$ and $A_{dir}$ $CP$ asymmetries in $B^0_d\rightarrow \pi^+\pi^-$ decays can be measured at LHC without particle identification using a fitting procedure of two hadrons effective mass spectra. In an experiment like CMS statistical errors of about 0.20 can be obtained after about 1/2 year of data taking at LHC with luminosity $2.10^{33} cm^{-2}sec^{-1}$($L_{int}=10fb^{-1})$.
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