000003736 001__ 3736
000003736 005__ 20230904184215.0
000003736 037__ $$aBELLE2-CONF-PROC-2023-028
000003736 041__ $$aeng
000003736 100__ $$aVismaya V S
000003736 245__ $$aSearch for the decay $B \rightarrow D^* \eta \pi$ in Belle II
000003736 260__ $$a$$c2023-07-12
000003736 300__ $$a3
000003736 520__ $$aRecent measurements of semileptonic decays show a difference between the branching ratio of the sum of exclusive decay rates and the inclusive $b \rightarrow c \ell \nu$ decay rate (the so-called Semi-Leptonic (SL) gap) which affects the interpretation of the CKM element $|Vcb|$. Large contributions from not-yet measured $B \rightarrow D^* \eta \ell \nu$ decays could explain such difference. We present a  study of the $B \rightarrow D^* \eta \pi$ decay on the simulated data sample of the Belle II experiment. This measurement will provide valuable information to predict its semileptonic counterpart $B \rightarrow D^* \eta \ell \nu$. If $B \rightarrow D^* \eta \pi$ decay is found to be large, it could contribute significantly to the hadronic B-tagging, and consequently enhance the sensitivity for searching rare B decays with missing energy.
000003736 700__ $$aS. Sandilya
000003736 700__ $$aK. Trabelsi
000003736 8560_ $$fph20resch11010@iith.ac.in
000003736 8564_ $$uhttps://docs.belle2.org/record/3736/files/BELLE2-CONF-PROC-2023-028.pdf
000003736 8564_ $$uhttps://docs.belle2.org/record/3736/files/%20BELLE2-CONF-PROC-2023-028_v1.pdf