Search for a Light CP-odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment.

Published

Journal Article

We report on the first Belle search for a light CP-odd Higgs boson, A^{0}, that decays into low mass dark matter, χ, in final states with a single photon and missing energy. We search for events produced via the dipion transition ϒ(2S)→ϒ(1S)π^{+}π^{-}, followed by the on-shell process ϒ(1S)→γA^{0} with A^{0}→χχ, or by the off-shell process ϒ(1S)→γχχ. Utilizing a data sample of 157.3×10^{6} ϒ(2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges M_{A^{0}}<8.97  GeV/c^{2} and M_{χ}<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}.

Full Text

Duke Authors

Cited Authors

  • Seong, IS; Vahsen, SE; Adachi, I; Aihara, H; Al Said, S; Asner, DM; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Bakich, AM; Bansal, V; Behera, P; Bhardwaj, V; Bhuyan, B; Bilka, T; Biswal, J; Bobrov, A; Bonvicini, G; Bozek, A; Bračko, M; Browder, TE; Cao, L; Červenkov, D; Chang, P; Chekelian, V; Chen, A; Cheon, BG; Chilikin, K; Cho, K; Choi, Y; Choudhury, S; Cinabro, D; Cunliffe, S; Dash, N; Di Carlo, S; Dingfelder, J; Dong, TV; Eidelman, S; Epifanov, D; Fast, JE; Frey, A; Fulsom, BG; Garg, R; Gaur, V; Gabyshev, N; Garmash, A; Gelb, M; Giri, A; Goldenzweig, P; Golob, B; Guido, E; Haba, J; Hayasaka, K; Hayashii, H; Hedges, MT; Higuchi, T; Hou, W-S; Hsu, C-L; Huang, K; Iijima, T; Inami, K; Inguglia, G; Ishikawa, A; Itoh, R; Iwasaki, M; Iwasaki, Y; Jacobs, WW; Jeon, HB; Jia, S; Jin, Y; Joffe, D; Joo, KK; Julius, T; Kaliyar, AB; Karyan, G; Kawasaki, T; Kichimi, H; Kiesling, C; Kim, DY; Kim, JB; Kim, KT; Kim, SH; Kinoshita, K; Kodyš, P; Korpar, S; Kotchetkov, D; Križan, P; Kroeger, R; Krokovny, P; Kuhr, T; Kumita, T; Kuzmin, A; Kwon, Y-J; Lange, JS; Lee, IS; Lee, SC; Li, LK; Li, YB; Li Gioi, L; Libby, J; Liventsev, D; Lubej, M; Luo, T; MacQueen, C; Masuda, M; Matsuda, T; Merola, M; Miyabayashi, K; Miyata, H; Mizuk, R; Mohanty, GB; Mori, T; Mussa, R; Nakano, E; Nakao, M; Nanut, T; Nath, KJ; Nayak, M; Niiyama, M; Nisar, NK; Nishida, S; Nishimura, K; Ogawa, S; Ono, H; Ostrowicz, W; Pakhlov, P; Pakhlova, G; Pal, B; Park, H; Pedlar, TK; Pestotnik, R; Piilonen, LE; 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, ME; Shen, CP; Shibata, T-A; Shiu, J-G; Simon, F; Solovieva, E; Stanič, S; Starič, 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, CH; Wang, P; Watanabe, M; Watanuki, S; Widmann, E; Won, E; Yamamoto, H; Ye, H; Yelton, J; Yuan, CZ; Yusa, Y; Zakharov, S; Zhang, ZP; Zhilich, V; Zhukova, V; Zhulanov, V; Zupanc, A; Belle Collaboration,

Published Date

  • January 2019

Published In

Volume / Issue

  • 122 / 1

Start / End Page

  • 011801 -

PubMed ID

  • 31012694

Pubmed Central ID

  • 31012694

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.122.011801

Language

  • eng