We searched for evidence of a Higgsstrahlung process in a secluded sector, leading to a final state with a dark photon U and a dark Higgs boson h', with the KLOE detector at DAΦNE. We investigated the case of h' lighter than U, with U decaying into a muon pair and h' producing a missing energy signature. We found no evidence of the process and set upper limits to its parameters in the range 2mμ<mU<1000MeV, mh'<mU. © 2015.
Search for dark Higgsstrahlung in e+e-→μ+μ- and missing energy events with the KLOE experiment
Nguyen, F.
2015-01-01
Abstract
We searched for evidence of a Higgsstrahlung process in a secluded sector, leading to a final state with a dark photon U and a dark Higgs boson h', with the KLOE detector at DAΦNE. We investigated the case of h' lighter than U, with U decaying into a muon pair and h' producing a missing energy signature. We found no evidence of the process and set upper limits to its parameters in the range 2mμI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.