# $R\_{had}$ at the $B$-factory

Source: [$R\_{had}$ at the $B$-factory](<https://www.sota2.com/research/paper/68fa29a51e209131ce83627a>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T13:02:37.989Z

Authors: K.G.Chetyrkin, J.H. K\\"uhn

Published: 1994-09-29T21:22:14.000Z

## Abstract

A systematic theoretical evaluation of the cross section for hadron production in electron-positron collisions in the energy range just below the $B$ meson threshold is presented which includes charm and bottom mass effects and is accurate to order $\\as^3$. The corresponding measurement in the energy region several $GeV$ above the threshold is also discussed.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-ph/9409444>)

[PDF](<https://arxiv.org/pdf/hep-ph/9409444.pdf>)