Evidence for B+ -> h(c)K(+) and observation of eta(c()2S) -> p(p)over-bar pi(+)pi(-)

Chilikin, K.Adachi, IAsner, D. M.Aulchenko, VAushev, T.Ayad, R.Babu, VBadhrees, IBansal, VBehera, P.Beleno, C.Berger, M.Bhardwaj, VBilka, T.Biswal, J.Bobrov, A.Bondar, A.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cao, L.Cervenkov, D.Chekelian, VChen, A.Cheon, B. G.Cho, K.Choi, S-KChoi, Y.Cinabro, D.Cunliffe, S.Di Carlo, S.Dolezal, Z.Dong, T. V.Eidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Fulsom, B. G.Garg, R.Gaur, VGabyshev, N.Garmash, A.Gelb, M.Giri, A.Goldenzweig, P.Grzymkowska, O.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.Hou, W-SHsu, C-LInami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jia, S.Jin, Y.Joffe, D.Joo, K. K.Julius, T.Kaliyar, A. B.Karyan, G.Kato, Y.Kiesling, C.Kim, C. H.Kim, D. Y.Kim, S. H.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Kroeger, R.Krokovny, P.Kulasiri, R.Kumar, R.Kwon, Y-JLalwani, K.Lange, J. S.Lee, J. K.Lee, J. Y.Lee, S. C.Li, L. K.Li, Y. B.Li Gio, L.Libby, J.Liventsev, D.Lu, P-CLuo, T.MacNaughton, J.MacQueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Miyabayashi, K.Mizuk, R.Mohanty, G. B.Mori, T.Nakao, M.Nath, K. J.Nayak, M.Niiyama, M.Nisar, N. K.Nishida, S.Nishimura, K.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, VRitter, M.Rostomyan, A.Russo, G.Sakai, Y.Salehi, M.Sandilya, S.Sanuki, T.Savinov, VSchneider, O.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Shen, C. P.Shiu, J-GShwartz, B.Simon, F.Sokolov, A.Solovieva, E.Staric, M.Stottler, Z. S.Strube, J. F.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Trabelsi, K.Uchida, M.Uno, S.Urquijo, P.Usov, Y.Van Tonder, R.Varner, G.Vinokurova, A.Wang, B.Wang, C. H.Wang, M-ZWang, P.Watanabe, M.Watanuki, S.Won, E.Yang, S. B.Ye, H.Yelton, J.Yin, J. H.Yuan, C. Z.Zhang, J.Zhang, Z. P.Zhilich, VZhukova, V2019-07-242019-07-242019-07-242019-07-1010.1103/PhysRevD.100.012001https://infoscience.epfl.ch/handle/20.500.14299/159365WOS:000474872100004A search for the decays B+ -> h(c)K(+) and B-0 -> h(c)K(S)(0) is performed. Evidence for the decay B+ -> h(c)K(+) is found; its significance is 4.8 sigma. No evidence is found for B-0 -> h(c)K(S)(0). The branching fraction for B+ -> h(c)K(+) is measured to be (3.7(-0.9 -0.8)(+1.0 +038)) x 10(-5); the upper limit for the B-0 -> h(c)K(S)(0) branching fraction is 1.4 x 10(-5) at 90% C. L. In addition, a study of the p (p) over bar pi(+pi-) invariant mass distribution in the channel B+ -> (p (p) over bar (+)pi(-))K+ results in the first observation of the decay eta(c)(2S) -> p (p) over bar pi(+)pi(-) with 12.1 sigma significance. The analysis is based on the 711 fb(-1) data sample collected by the Belle detector at the asymmetric- energy e(+)e(-) collider KEKB at the gamma(4S) resonance.Astronomy & AstrophysicsPhysics, Particles & FieldsPhysicsdecaysEvidence for B+ -> h(c)K(+) and observation of eta(c()2S) -> p(p)over-bar pi(+)pi(-)text::journal::journal article::research article