Journal article
Search for the dark photon and the dark higgs boson at belle
I Jaegle, I Adachi, H Aihara, S Al Said, DM Asner, T Aushev, R Ayad, AM Bakich, V Bansal, M Barrett, B Bhuyan, A Bozek, M Bračko, TE Browder, D Červenkov, MC Chang, BG Cheon, K Chilikin, K Cho, V Chobanova Show all
Physical Review Letters | Published : 2015
Abstract
The dark photon A′ and the dark Higgs boson h′ are hypothetical constituents featured in a number of recently proposed dark sector models. Assuming prompt decays of both dark particles, we search for their production in the so-called Higgstrahlung channel e+e-→A′h′, with h′→A′A′. We investigate ten exclusive final states with A′→e+e-, μ+μ-, or π+π- in the mass ranges 0.1GeV/c2
Grants
Funding Acknowledgements
We thank the KEKB group for excellent operation of the accelerator, the KEK cryogenics group for efficient solenoid operations, and the KEK computer group, the NII, and PNNL/EMSL for valuable computing and SINET4 network support. We acknowledge support from MEXT, JSPS, and Nagoya's TLPRC (Japan), ARC (Australia), FWF (Austria), NSFC (China), MSMT (Czechia), CZF, DFG, and VS (Germany), DST (India), INFN (Italy), MOE, MSIP, NRF, GSDC of KISTI, and BK21Plus (Korea), MNiSW and NCN (Poland), MES and RFAAE (Russia), ARRS (Slovenia), IKERBASQUE and UPV/EHU (Spain), SNSF (Switzerland), NSC and MOE (Taiwan), and U.S. DOE and U.S. NSF (USA). We would also like to thank Bertrand Echenard for discussing the BABAR analysis and Rouven Essig for providing the models for MADGRAPH.