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Hiroyasu Yamamoto

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Related publications (10)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

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

Roberto Gargiani, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Chao Wang, Hiroyasu Yamamoto, Yong Chan Choi, Seyed Sina Mirrazavi Salehian, Arnaud Michel Gelb, Ke Huang, Gaétan Charles Antoine Giriat, Jun Yong Kim, Mithilesh Nayak, Linlin Cao, Jiayun Shen, Tara Nanut, Donghyun Kim, Martin Lubej, Chang-Hyun Park, Lei Li, Ji Hyun Kim, Yiming Li

We 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( ...

2019

Search for the rare decay of B+ -> l(+)nu e gamma with improved hadronic tagging

Roberto Gargiani, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Hiroyasu Yamamoto, Taoufiq Harach, Yong Chan Choi, Seyed Sina Mirrazavi Salehian, Mia Primorac, Arnaud Michel Gelb, Tao Yang, Gaétan Charles Antoine Giriat, Mithilesh Nayak, Linlin Cao, Jiayun Shen, Donghyun Kim, Martin Lubej, Yiming Li, Xiao Wang

We present the result of the search for the rare B meson decay of B+ -> l(+)nu e gamma with l = e, mu. For the search the full data set recorded by the Belle experiment of 711 fb(-1) integrated luminosity near the Upsilon(4S) resonance is used. Signal cand ...

American Physical Society2018

Observation of e(+) e(-) -> gamma chi(c1) and search for e(+) e(-) -> gamma chi(c0), gamma chi(c2), and gamma eta(c) at root s near 10.6 GeV at Belle

Roberto Gargiani, Olivier Schneider, Sun Hee Kim, Tagir Aushev, Mingkui Wang, Chao Wang, Hiroyasu Yamamoto, Timothy Chi Hin Liew, Yong Chan Choi, Seyed Sina Mirrazavi Salehian, Arnaud Michel Gelb, Tao Yang, Gaétan Charles Antoine Giriat, Jun Yong Kim, Linlin Cao, Jiayun Shen, Donghyun Kim, Martin Lubej, Chang-Hyun Park, Lei Li, Ji Hyun Kim, Yiming Li, Xiao Wang

Using data samples of 89.5 fb(-1), 711.0 fb(-1), and 121.4 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e(+) ...

American Physical Society2018