Search for a Light CP -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment
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| dc.contributor.author | Vahsen S.E. | en_US |
| dc.contributor.author | Adachi I. | en_US |
| dc.contributor.author | Aihara H. | en_US |
| dc.contributor.author | Al Said S. | en_US |
| dc.contributor.author | Asner D.M. | en_US |
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| dc.contributor.author | Vinokurova A. | en_US |
| dc.contributor.author | Vossen A. | en_US |
| dc.contributor.author | Wang B. | en_US |
| dc.contributor.author | Wang C.H. | en_US |
| dc.contributor.author | Wang P. | en_US |
| dc.contributor.author | Watanabe M. | en_US |
| dc.contributor.author | Watanuki S. | en_US |
| dc.contributor.author | Widmann E. | en_US |
| dc.contributor.author | Won E. | en_US |
| dc.contributor.author | Yamamoto H. | en_US |
| dc.contributor.author | Ye H. | en_US |
| dc.contributor.author | Yelton J. | en_US |
| dc.contributor.author | Yuan C.Z. | en_US |
| dc.contributor.author | Yusa Y. | en_US |
| dc.contributor.author | Zakharov S. | en_US |
| dc.contributor.author | Zhang Z.P. | en_US |
| dc.contributor.author | Zhilich V. | en_US |
| dc.contributor.author | Zhukova V. | en_US |
| dc.contributor.author | Zhulanov V. | en_US |
| dc.contributor.author | Zupanc A. | en_US |
| dc.contributor.author | (Belle Collaboration) | en_US |
| dc.date.accessioned | 2025-02-17T08:39:58Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | We report on the first Belle search for a light CP-odd Higgs boson, A0, that decays into low mass dark matter, ?, in final states with a single photon and missing energy. We search for events produced via the dipion transition (2S)? (1S)?+?-, followed by the on-shell process (1S)??A0 with A0???, or by the off-shell process (1S)????. Utilizing a data sample of 157.3�106 (2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges MA0<8.97 GeV/c2 and M?<4.44 GeV/c2. 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/c2. � 2019 authors. Published by the American Physical Society. | en_US |
| dc.identifier.citation | 4 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1103/PhysRevLett.122.011801 | |
| dc.identifier.uri | https://idr.iitbbs.ac.in/handle/2008/2362 | |
| dc.language.iso | en | en_US |
| dc.title | Search for a Light CP -odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment | en_US |
| dc.type | Article | en_US |