摘要
The discrepancy between the measured and theoretical production cross section of b quarks at the Fermilab Tevatron can probably be explained by the recently proposed scenario of light gluinos of mass (Formula presented) and light sbottoms of mass (Formula presented) In this scenario, we study a related process at the Z pole, (Formula presented) followed by (Formula presented) The hadronic branching ratio for this channel is (Formula presented) which is of the order of the size of the uncertainty in (Formula presented) We find that a typical event consists of an energetic prompt bottom jet back to back with a “fat” bottom jet, which consists of a bottom quark and two bottom squarks. Such events with a (Formula presented) branching ratio may affect the measurement of (Formula presented) they are even more interesting if the fat bottom jet can be identified. © 2003 The American Physical Society.