Heavy Flavors Results From SLD

TL;DR

This paper reports on measurements of B hadron decay branching fractions, charm yield, rare decay modes, and B meson mixing frequencies, utilizing advanced vertex detection technology to improve the precision of these fundamental parameters.

Contribution

It introduces new measurements of B hadron decay properties and mixing frequencies using the VXD3 vertex detector, enhancing the understanding of heavy flavor physics.

Findings

Measured B hadron branching fractions to charm states.

Determined the charm yield per B decay, N_c.

Set limits on B_s mixing frequency, Delta m_s.

Abstract

We present recent measurements by SLD of the branching fractions of B hadrons to states with 0 and 2 open charm hadrons, BR_{0D} and BR_{2D}, from which both the average charm yield per B decay, N_c and the inclusive branching ratio into rare modes not containing any charmed hadrons, BR_{rare} can be derived. We also present a new measurement of the B_d mixing frequency Delta m_d and limits on the B_s mixing frequency Delta m_s. These analyses take advantage of the excellent vertexing resolution of the VXD3, a pixel-based CCD vertex detector, which enables the topological separation of the B and cascade D decay vertices.