2026-04-13T02:27:30Zhttps://recercat.cat/oai/requestoai:recercat.cat:20.500.14342/31392026-03-05T23:39:57Zcom_2072_482405com_2072_183628col_2072_482415
RECERCAT
author
Calvo Gomez, Miriam
author
Camboni, Alessandro
author
Vilasis-Cardona, Xavier
author
LHCb Collaboration - CERN
2013-02-07
http://hdl.handle.net/20.500.14342/3139
https://doi.org/10.1007/JHEP02(2013)043
Evidence for the hadronic annihilation decay mode B+→D+sϕ
is found with greater than 3σ significance. The branching fraction and CP asymmetry are measured to be
$
B(B+→D+sϕ)=(1.87+1.25−0.73(stat)±0.19(syst)±0.32(norm))×10−6,ACP(B+→D+sϕ)=−0.01±0.41(stat)±0.03(syst).
$
The last uncertainty on B(B+→D+sϕ)
is from the branching fractions of the B+→D+sD¯¯¯¯0 normalization mode and intermediate resonance decays. Upper limits are also set for the branching fractions of the related decay modes B+(c)→D+(s)K∗0,B+(c)→D+(s)K¯¯¯¯¯∗0 and B+c→D+sϕ, including the result B(B+→D+K∗0)<1.8×10−6 at the 90% credibility level.
eng
Attribution 4.0 International © CERN
Gran col·lisionador d'hadrons (França i Suïssa)
Partícules (Física nuclear)
First evidence for the annihilation decay mode B+→D+sφ
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion