Non-perturbative effects in B → Xsl+l−

✍ Scribed by G. Buchalla

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 486 KB
• Volume: 74
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(99)00174-7

✦ Synopsis

The rare decay B + X,1+1-provides excellent prospects for precision tests of Standard Model flavour dynamics.

The process can be computed in perturbation theory with small uncertainty. However, in order to ensure a reliable theoretical prediction, also potentially important effects from non-perturbative QCD have to be controlled with sufficient accuracy. The present article summarizes recent developments related to this topic.