000004583 001__ 4583
000004583 005__ 20241108074240.0
000004583 037__ $$aBELLE2-CONF-PROC-2024-026
000004583 041__ $$aeng
000004583 100__ $$aSourabh Chutia
000004583 245__ $$aStudy of Radiative Decays of X(3872) Using the Belle and the Belle II Detectors.
000004583 260__ $$a$$c2024-11-08
000004583 300__ $$a3
000004583 520__ $$aWe present here a preliminary Monte Carlo (MC) simulation study of $X(3872)\to J/\psi\gamma$ and $X(3872)\rightarrow \psi(2S)\gamma$ in the decay of $B\to (c\bar{c}\gamma)K$ where $B$ stands for $B^{\pm}$, $B^0$ and $K$ stands for $K^\pm$, $K^0_S$. The previous Belle measurement did not find any significant signal for $X(3872)\rightarrow \psi(2S)\gamma$. We plan to measure the ratio of BF $R_{\psi\gamma}=\{\mathcal{B}(X(3872)\rightarrow \psi(2S)\gamma)/\mathcal{B}(X(3872)\rightarrow J/\psi\gamma)\}$ to probe the nature of the state combining the $B$-meson data collected by the Belle (and the Belle II) detectors which is expected to increase the sensitivity and significance. $B\rightarrow \chi_{c1,c2}K$ where $\chi_{c1,c2}\rightarrow J/\psi\gamma$ will be used as calibration mode.
000004583 700__ $$aVishal Bhardwaj
000004583 8560_ $$fph21070@iisermohali.ac.in
000004583 8564_ $$uhttps://docs.belle2.org/record/4583/files/BELLE2-CONF-PROC-2024-026.pdf