The introduction of additional phases by loop contributions that can shift the experimentally measurable parameter αeff away from the value of α was discussed. An unbinned extended maximum likelihood fit that assumed the earlier mentioned event types was performed. The systematic error was estimated from ignoring interference with nonresonant modes and a 1π to be 0.02 on SL, CL and 2.4% on the signal yield. The Brec vertex from the two charged-pion tracks in its decay was determined.
|Titolo:||Study of the Decay B0(B¯0)→ρ+ρ-, and Constraints on the Cabibbo-Kobayashi-Maskawa Angle α|
|Settore Scientifico Disciplinare:||Settore FIS/04 - Fisica Nucleare e Subnucleare|
|Data di pubblicazione:||2004|
|Digital Object Identifier (DOI):||10.1103/PhysRevLett.93.231801|
|Appare nelle tipologie:||01 - Articolo su periodico|