학술논문

Search for $B^0 \to X(3872) \gamma$
Document Type
Working Paper
Author
Belle CollaborationChou, P. -C.Chang, P.Adachi, I.Aihara, H.Said, S. AlAsner, D. M.Atmacan, H.Aulchenko, V.Aushev, T.Ayad, R.Babu, V.Badhrees, I.Bakich, A. M.Behera, P.Bennett, J.Berger, M.Bhuyan, B.Bilka, T.Biswal, J.Bobrov, A.Bozek, A.Bračko, M.Browder, T. E.Campajola, M.Cao, L.Červenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chilikin, K.Cho, H. E.Cho, K.Choi, S. -K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Dash, N.Di Carlo, S.Doležal, Z.Dong, T. V.Eidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Fulsom, B. G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Grzymkowska, O.Haba, J.Hartbrich, O.Hayasaka, K.Hayashii, H.Hou, W. -S.Hsu, C. -L.Iijima, T.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jia, S.Jin, Y.Joffe, D.Joo, K. K.Kaliyar, A. B.Kato, Y.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, D. Y.Kim, S. H.Kinoshita, K.Kodyš, P.Korpar, S.Kotchetkov, D.Križan, P.Kroeger, R.Krokovny, P.Kulasiri, R.Kumar, R.Kumita, T.Kuzmin, A.Kwon, Y. -J.Lai, Y. -T.Lange, J. S.Lee, J. K.Lee, J. Y.Lee, S. C.Li, C. H.Li, Y. B.Gioi, L. LiLibby, J.Lieret, K.Liventsev, D.Luo, T.MacNaughton, J.Masuda, M.Matsuda, T.Merola, M.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Mori, T.Mussa, R.Nath, K. J.Nayak, M.Niiyama, M.Nishida, S.Nishimura, K.Ogawa, K.Ogawa, S.Ono, H.Onuki, Y.Pakhlov, P.Pakhlova, G.Pal, B.Pardi, S.Park, H.Patra, S.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Popov, V.Prencipe, E.Ritter, M.Rostomyan, A.Russo, G.Sakai, Y.Salehi, M.Sandilya, S.Santelj, L.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schueler, J.Schwanda, C.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shiu, J. -G.Shwartz, B.Singh, J. B.Solovieva, E.Starič, M.Stottler, Z. S.Strube, J. F.Sumihama, M.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tanida, K.Tao, Y.Tenchini, F.Uchida, M.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Vahsen, S. E.Van Tonder, R.Varner, G.Vossen, A.Waheed, E.Wang, B.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, M.Watanuki, S.Won, E.Yang, S. B.Ye, H.Yelton, J.Yin, J. H.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhukova, V.Zhulanov, V.
Source
Phys. Rev. D 100, 012002 (2019)
Subject
High Energy Physics - Experiment
Language
Abstract
We report the results of a search for the decay $B^0 \to X(3872)(\to J/\psi \pi^+ \pi^-) \gamma$. The analysis is performed on a data sample corresponding to an integrated luminosity of $711\,{\rm fb}^{-1}$ and containing $772 \times 10^6 B\bar{B}$ pairs, collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider running at the $\Upsilon(4S)$ resonance energy. We find no evidence for a signal and place an upper limit of $\mathcal{B}(B^0 \to X(3872)\gamma)\times \mathcal{B}(X(3872) \to J/\psi \pi^+ \pi^-) < 5.1 \times 10^{-7}$ at 90% confidence level.
Comment: 7 pages, 3 figures