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SUMMARY:B decays beyond leading order
DTSTART;VALUE=DATE-TIME:20100705T100000Z
DTEND;VALUE=DATE-TIME:20100705T110000Z
DTSTAMP;VALUE=DATE-TIME:20260704T204658Z
UID:indico-event-1763@indico.ific.uv.es
DESCRIPTION:B-decays have proven in the past to be phenomenologically high
 ly relevant for constraining the parameters of the flavour sector and prov
 ide a promising way for detecting new physics at future high precision exp
 eriments. Both inclusive and exclusive decay modes can be calculated from 
 first principles by disentangling the long-distance and short-distance phy
 sics by means of heavy quark expansion where the short-distance quantities
  are accessible to perturbation theory. In the last years there has been m
 uch effort to compute higher order QCD corrections. I will give a short ov
 erview on the construction sites of the last years and present in more det
 ail two calculations\, I was involved in. In particular I will talk about 
 the calculations of B -> Xs l+l- and B -> pi pi/ rho rho at order alpha_s^
 2\, where I will present techical details as well as phenomenological resu
 lts.\n\nhttps://indico.ific.uv.es/event/1763/
LOCATION:Edf. Institutos de Investigación Sala Seminarios IFIC
URL:https://indico.ific.uv.es/event/1763/
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