A model independent method for measurement of B± and B0 meson production fractions at Υ(4S)

A bstract This paper presents a detailed description of a model-independent method for the direct measurement of the Υ(4 S ) → B + B − and Υ(4 S ) → B⁰B̄⁰ B 0 B ¯ 0 production fractions at B factories. The method is based on counting single- and double-inclusive charmed meson production at the Υ(4 S ) resonance, providing statistical tagging of B⁰B̄⁰ B 0 B ¯ 0 and B + B − events. A feasibility study indicates that a precision comparable to the current world average can be achieved without making any underlying assumptions, as the calculations rely solely on event yields.