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Search for $X(3872)\to\pi^0\chi_{c0}$ and $X(3872)\to\pi\pi\chi_{c0}$ at BESIII
Search for $X(3872)\to\pi^0\chi_{c0}$ and $X(3872)\to\pi\pi\chi_{c0}$ at BESIII
Using 9.9 fb$^{-1}$ of $e^+e^-$ collision data collected by the BESIII detector at center-of-mass energies between 4.15 and 4.30 GeV, we search for the processes $e^+e^-\to\gamma X(3872)$ with $X(3872)\rightarrow\pi^0\chi_{c0}$ and $X(3872)\rightarrow\pi\pi\chi_{c0}$. Depending on the fitting model, the statistical significance for $X(3872)\to\pi^0\chi_{c0}$ ranges from 1.3$\sigma$ to 2.8$\sigma$. We set upper limits (at 90\% C.L.) of $\frac{\mathcal{B}(X(3872)\rightarrow\pi^0\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^+\pi^-J/\psi)}<3.6$, $\frac{\mathcal{B}(X(3872)\rightarrow\pi^+\pi^-\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^+\pi^-J/\psi)}<0.68$, and $\frac{\mathcal{B}(X(3872)\rightarrow\pi^0\pi^0\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^+\pi^-J/\psi)}<1.7$. Combined with the BESIII measurement of $X(3872)\to\pi^0\chi_{c1}$, we also set an upper limit of $\frac{\mathcal{B}(X(3872)\rightarrow\pi^0\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^0\chi_{c1})}<4.4$.
Comment: 16 pages
High Energy Physics - Experiment
High Energy Physics - Experiment
4415
Yan Zhang63;50, Yao Zhang1, Z. H. Zhang1, Z. Y. Zhang36, Z. Y. Zhang68, G. Zhao1, J. Zhao32, J. Y. Zhao1;55, J. Z. Zhao1;50, Lei Zhao63;50, Ling Zhao1, M. G. Zhao36, Q. Zhao1, S. J. Zhao72, Y. B. Zhao1;50, Y. X. Zhao25;55, Z. G. Zhao63;50, A. Zhemchugov29;a, B. Zheng64, J. P. Zheng1;50, Y. H. Zheng55, B. Zhong34, C. Zhong64, X. Zhong51, H. Zhou42,
66 University of Turin and INFN, (A)University of Turin, I-10125, Turin, Italy; (B)University of Eastern Piedmont, I-15121, Alessandria, Italy; (C)INFN, I-10125, Turin, Italy 67 Uppsala University, Box 516, SE-75120 Uppsala, Sweden 68 Wuhan University, Wuhan 430072, People's Republic of China 69 Xinyang Normal University, Xinyang 464000, People's Republic of China 70 Yunnan University, Kunming 650500, People's Republic of China 71 Zhejiang University, Hangzhou 310027, People's Republic of China 72 Zhengzhou University, Zhengzhou 450001, People's Republic of China
2c22
/V20
M18
/s516
ten14
E12
ly, so the total number of variations is 3 3 2 2 2 3 = 216. Variation Description Variations
Polynomial function 1st, 2nd, 3rd order 3 Mass Nominal, and 1 MeV 3 Internal width 0.96 MeV, 1.39 MeV 2 Resolution Nominal, widen 20% 2 Fit range Nominal, 3:775 4:0 GeV 2 Beam energy Nominal, 1 MeV 3
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).0 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!Using 9.9 fb$^{-1}$ of $e^+e^-$ collision data collected by the BESIII detector at center-of-mass energies between 4.15 and 4.30 GeV, we search for the processes $e^+e^-\to\gamma X(3872)$ with $X(3872)\rightarrow\pi^0\chi_{c0}$ and $X(3872)\rightarrow\pi\pi\chi_{c0}$. Depending on the fitting model, the statistical significance for $X(3872)\to\pi^0\chi_{c0}$ ranges from 1.3$\sigma$ to 2.8$\sigma$. We set upper limits (at 90\% C.L.) of $\frac{\mathcal{B}(X(3872)\rightarrow\pi^0\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^+\pi^-J/\psi)}<3.6$, $\frac{\mathcal{B}(X(3872)\rightarrow\pi^+\pi^-\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^+\pi^-J/\psi)}<0.68$, and $\frac{\mathcal{B}(X(3872)\rightarrow\pi^0\pi^0\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^+\pi^-J/\psi)}<1.7$. Combined with the BESIII measurement of $X(3872)\to\pi^0\chi_{c1}$, we also set an upper limit of $\frac{\mathcal{B}(X(3872)\rightarrow\pi^0\chi_{c0})}{\mathcal{B}(X(3872)\to\pi^0\chi_{c1})}<4.4$.
Comment: 16 pages