首先搜索$η_{c2}（1d）$ in $ b $在belle衰减

论文标题

首先搜索$η_{c2}（1d）$ in $ b $在belle衰减

First search for the $η_{c2}(1D)$ in $B$ decays at Belle

论文作者

Belle Collaboration, Chilikin, K., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Beleño, C., Belous, K., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M. -C., Chekelian, V., Chen, A., Cheon, B. G., Cho, K., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Hartbrich, O., Hayasaka, K., Hayashii, H., Villanueva, M. Hernandez, Hou, W. -S., Hsu, C. -L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E. -J., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Karyan, G., Kato, Y., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K. -H., Kim, S. H., Kim, Y. -K., Kimmel, T. D., Kinoshita, K., Kodyš, P., Korpar, S., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S. -H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sakai, Y., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Shapkin, M., Shiu, J. -G., Shwartz, B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Varner, G., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, E., Wang, M. -Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Xu, X., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, J., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V.

论文摘要

第一次使用$η_{C2}（1D）$的专用搜索是使用损失进行$ B^+\rightArrowη_{C2}（1d）K^+$，$ b^0 \rightArrowη__{c2}（1d）k^0_s k^0_s k^0_s k^0_s k^0_s $ b^0 \ rightarr k.和$ b^+ \rightArrowη_{c2}（1d）π^+ k^0_s $带有$η_{c2}（1d）\ toH_Cγ$。找不到明显的信号。对于$η_{C2}（1D）$质量之间的质量在$ 3795 $和$ 3845 \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2 $之间，确定分支上限的上限为$ \ m nathcal {b}（b^+ \ rightArrow houtarrow prirctArrow prirctArrowprirctarrowη_{c2} {c2}（c2） \ Mathcal {b}（η_{C2}（1d）\ toH_Cγ）<3.7 \ times 10^{ - 5} $，$ \ Mathcal {b}（b^0 \rightArrowη_ h_cγ）<3.5 \ times 10^{ - 5} $，$ \ MATHCAL {b}（b^0 \rightArrowη_{c2}（1d）π^ - k^+）\ times \ times \ times \ nathcal {b}（b}（b}（b}（η_{C2}}（c2}}（c2}}（1d）$} $ n tipes {$ t tipes tiese and and and and and and and and and and and and and and and-and and and and and and and and and and Times <1。 $ \ MATHCAL {B}（B^+ \rightArrowη_{C2}（1d）π^+ k^0_s）\ times \ times \ Mathcal {B}（η_{C2}（c2}（1d）（1d）\ toH_Cγ） $ \ mathrm {fb}^{ - 1} $数据样本在Belle检测器上收集的$υ（4S）$共振，该belle检测器在Kekb非对称能源$ e^+ e^+ e^ - $ collider上运行。

The first dedicated search for the $η_{c2}(1D)$ is carried out using the decays $B^+ \rightarrow η_{c2}(1D) K^+$, $B^0 \rightarrow η_{c2}(1D) K^0_S$, $B^0 \rightarrow η_{c2}(1D) π^- K^+$, and $B^+ \rightarrow η_{c2}(1D) π^+ K^0_S$ with $η_{c2}(1D) \to h_c γ$. No significant signal is found. For the $η_{c2}(1D)$ mass range between $3795$ and $3845\ \mathrm{MeV}/c^2$, the branching-fraction upper limits are determined to be $\mathcal{B}(B^+ \rightarrow η_{c2}(1D) K^+) \times \mathcal{B}(η_{c2}(1D) \to h_c γ) < 3.7 \times 10^{-5}$, $\mathcal{B}(B^0 \rightarrow η_{c2}(1D) K^0_S) \times \mathcal{B}(η_{c2}(1D) \to h_c γ) < 3.5 \times 10^{-5}$, $\mathcal{B}(B^0 \rightarrow η_{c2}(1D) π^- K^+) \times \mathcal{B}(η_{c2}(1D) \to h_c γ) < 1.0 \times 10^{-4}$, and $\mathcal{B}(B^+ \rightarrow η_{c2}(1D) π^+ K^0_S) \times \mathcal{B}(η_{c2}(1D) \to h_c γ) < 1.1 \times 10^{-4}$ at 90% C. L. The analysis is based on the 711 $\mathrm{fb}^{-1}$ data sample collected on the $Υ(4S)$ resonance by the Belle detector, which operated at the KEKB asymmetric-energy $e^+ e^-$ collider.

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