Seong, I. S.Vahsen, S. E.Adachi, IAihara, H.Al Said, S.Asner, D. M.Aulchenko, VAushev, T.Ayad, R.Babu, VBakich, A. M.Bansal, VBehera, P.Bhardwaj, VBhuyan, B.Bilka, T.Biswal, J.Bobrov, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cao, L.Cervenkov, D.Chang, P.Chekelian, VChen, A.Cheon, B. G.Chilikin, K.Cho, K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Dash, N.Di Carlo, S.Dingfelder, J.Dong, T. V.Eidelman, S.Epifanov, D.Fast, J. E.Frey, A.Fulsom, B. G.Garg, R.Gaur, VGabyshev, N.Garmash, A.Gelb, M.Giri, A.Goldenzweig, P.Golob, B.Guido, E.Haba, J.Hayasaka, K.Hayashii, H.Hedges, M. T.Higuchi, T.Hou, W-SHsu, C-LHuang, K.Iijima, T.Inami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jacobs, W. W.Jeon, H. B.Jia, S.Jin, Y.Joffe, D.Joo, K. K.Julius, T.Kaliyar, A. B.Karyan, G.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, S. H.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kumita, T.Kuzmin, A.Kwon, Y-JLange, J. S.Lee, I. S.Lee, S. C.Li, L. K.Li, Y. B.Gioi, L. LiLibby, J.Liventsev, D.Lubej, M.Luo, T.MacQueen, C.Masuda, M.Matsuda, T.Merola, M.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Mori, T.Mussa, R.Nakano, E.Nakao, M.Nanut, T.Nath, K. J.Nayak, M.Niiyama, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Ono, H.Ostrowicz, W.Pakhlov, P.Pakhlova, G.Pal, B.Park, H.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Prencipe, E.Ritter, M.Rostomyan, A.Russo, G.Sakai, Y.Salehi, M.Sandilya, S.Santelj, L.Sanuki, T.Savinov, VSchneider, O.Schnell, G.Schueler, J.Schwanda, C.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shen, C. P.Shibata, T-AShiu, J-GSimon, F.Solovieva, E.Stanic, S.Staric, M.Sumihama, M.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tanida, K.Tenchini, F.Trabelsi, K.Uchida, M.Uglov, T.Unno, Y.Uno, S.Usov, Y.Van Hulse, C.Van Tonder, R.Varner, G.Vinokurova, A.Vossen, A.Wang, B.Wang, C. H.Wang, P.Watanabe, M.Watanuki, S.Widmann, E.Won, E.Yamamoto, H.Ye, H.Yelton, J.Yuan, C. Z.Yusa, Y.Zakharov, S.Zhang, Z. P.Zhilich, VZhukova, VZhulanov, VZupanc, A.2019-01-232019-01-232019-01-232019-01-0410.1103/PhysRevLett.122.011801https://infoscience.epfl.ch/handle/20.500.14299/154035WOS:000455065000002We report on the first Belle search for a light CP-odd Higgs boson, A(0), that decays into low mass dark matter, chi, in final states with a single photon and missing energy. We search for events produced via the dipion transition (sic)(2S) -> (sic)(1S)pi(+)pi(-), followed by the on-shell process (sic)(1S) -> gamma A(0) with A(0) -> chi chi, or by the off-shell process (sic)(1S) -> gamma chi chi. Utilizing a data sample of 157.3 x 10(6) (sic)(2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges M-A0 < 8.97 GeV/c(2) and M-chi < 4.44 GeV/c(2). We then use the limits on the off-shell process to set competitive limits on WIMP-nucleon scattering in the WIMP mass range below 5 GeV/c(2).Physics, MultidisciplinaryPhysicstext::journal::journal article::research article