THE MEASUREMENT OF THE ƒs/ƒd RATIO FROM HADRONIC MODES IN THE LHCb EXPERIMENT.

Authors :: Morawski, Piotr
Source :: Acta Physica Polonica B; Jul2012, Vol. 43 Issue 7, p1561-1571, 11p
Publication Year :: 2012
Abstract: In this paper, the measurement of the fragmentation factor ratio ƒ<subscript>s</subscript>/ƒ<subscript>d</subscript> in the LHCb experiment using hadronic decay modes is presented. The relative yields of the three channels B<superscript>0</superscript> → D<superscript>-</superscript> π<superscript>+</superscript>, B<superscript>0</superscript> → D<superscript>-</superscript>K<superscript>+</superscript>, B<superscript>0</superscript><subscript>s</subscript> → D<superscript>-</superscript><subscript>S</subscript> π<superscript>+</superscript> selected from 35pb<superscript>-1</superscript> of data collected in 2010 are used for the analysis. The fragmentation fraction ratio is determined to be ƒ<subscript>s</subscript>/ƒ<subscript>d</subscript> = 0.245 ± 0.017<superscript>stat</superscript> ± 0.018<superscript>syst</superscript> ± 0.018<superscript>theor</superscript>. [ABSTRACT FROM AUTHOR]