Evidence for the ηb(2S) and observation of h b(1P)→ηb(1S)γ and hb(2P) →ηb(1S)γ
Creators: name: Mizuk, R.
name: Asner, D. M.
name: Bondar, A.
name: Pedlar, T. K.
name: Adachi, I.
name: Aihara, H.
name: Arinstein, K.
name: Aulchenko, V.
name: Aushev, T.
name: Aziz, T.
name: Bakich, A. M.
name: Bay, A.
name: Belous, K.
name: Bhardwaj, V.
name: Bhuyan, B.
name: Bischofberger, M.
name: Bonvicini, G.
name: Bozek, A.
name: Bračko, M.
name: Brodzicka, J.
name: Browder, T. E.
name: Chekelian, V.
name: Chen, A.
name: Chen, P.
name: Cheon, B. G.
name: Chilikin, K.
name: Chistov, R.
name: Cho, I.-S.
name: Cho, K.
name: Choi, S.-K.
name: Choi, Y.
name: Dalseno, J.
name: Danilov, M.
name: Doležal, Z.
name: Drásal, Z.
name: Drutskoy, A.
name: Eidelman, S.
name: Epifanov, D.
name: Fast, J. E.
name: Gaur, V.
name: Gabyshev, N.
name: Garmash, A.
name: Golob, B.
name: Haba, J.
name: Hara, T.
name: Hayasaka, K.
name: Hayashii, H.
name: Horii, Y.
name: Hoshi, Y.
name: Hou, W.-S.
name: Hsiung, Y. B.
name: Hyun, H. J.
name: Iijima, T.
name: Ishikawa, A.
name: Itoh, R.
name: Iwabuchi, M.
name: Iwasaki, Y.
name: Iwashita, T.
name: Jaegle, I.
name: Julius, T'Mir
name: Kang, J. H.
name: Kapusta, P.
name: Kawasaki, T.
name: Kim, H. J.
name: Kim, H. O.
name: Kim, J. H.
name: Kim, K. T.
name: Kim, M. J.
name: Kim, Y. J.
name: Kinoshita, K.
name: Ko, B. R.
name: Koblitz, S.
name: Kodyš, P.
name: Korpar, S.
name: Kouzes, R. T.
name: Križan, P.
name: Krokovny, P.
name: Kuhr, T.
name: Kumita, T.
name: Kuzmin, A.
name: Kwon, Y.-J.
name: Lange, J. S.
name: Lee, S.-H.
name: Li, J.
name: Libby, J.
name: Liu, C.
name: Liu, Y.
name: Liu, Z. Q.
name: Liventsev, D.
name: Louvot, R.
name: Matvienko, D.
name: McOnie, S.
name: Miyabayashi, K.
name: Miyata, H.
name: Mohanty, G. B.
name: Mohapatra, D.
name: Moll, A.
name: Muramatsu, N.
name: Mussa, R.
name: Nakao, M.
name: Natkaniec, Z.
name: Ng, C.
name: Nishida, S.
name: Nishimura, K.
name: Nitoh, O.
name: Nozaki, T.
name: Ohshima, T.
name: Okuno, S.
name: Olsen, S. L.
name: Onuki, Y.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, C. W.
name: Park, H.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Poluektov, A.
name: Röhrken, M.
name: Sakai, Y.
name: Sandilya, S.
name: Santel, D.
name: Sanuki, T.
name: Sato, Y.
name: Schneider, O.
name: Schwanda, C.
name: Senyo, K.
name: Seon, O.
name: Sevior, M. E.
name: Shapkin, M.
name: Shen, C. P.
name: Shibata, T.-A.
name: Shiu, J.-G.
name: Shwartz, B.
name: Sibidanov, A.
name: Simon, F.
name: Smerkol, P.
name: Sohn, Y.-S.
name: Sokolov, A.
name: Solovieva, E.
name: Stanič, S.
name: Starič, M.
name: Sumihama, M.
name: Sumiyoshi, T.
name: Tanida, K.
name: Tatishvili, G.
name: Teramoto, Y.
name: Tikhomirov, I.
name: Trabelsi, K.
name: Tsuboyama, T.
name: Uchida, M.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Vanhoefer, P.
name: Varner, G.
name: Varvell, K. E.
name: Vinokurova, A.
name: Vorobyev, V.
name: Wang, C. H.
name: Wang, M.-Z.
name: Wang, P.
name: Wang, X. L.
name: Watanabe, M.
name: Watanabe, Y.
name: Williams, K. M.
name: Won, E.
name: Yabsley, B. D.
name: Yamaoka, J.
name: Yamashita, Y.
name: Yuan, C. Z.
name: Zhang, Z. P.
name: Zhilich, V.
Publisher: name: Swinburne
Year: 2024

description: We report the first evidence for the ηb(2S) using the hb(2P)→ηb(2S)γ transition and the first observation of the hb(1P)→ηb(1S)γ and hb(2P)→ηb(1S)γ transitions. The mass and width of the ηb(1S) and ηb(2S) are measured to be mηb(1S)=(9402.4±1.5±1.8)  MeV/c2, mηb(2S)=(9999.0±3.5+2.8−1.9)  MeV/c2, and Γηb(1S)=(10.8+4.0+4.5−3.7−2.0)  MeV. We also update the hb(1P) and hb(2P) mass measurements. We use a 133.4  fb−1 data sample collected at energies near the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider.