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 DAFNE. 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.
Search for dark Higgsstrahlung in e+e− → μ+μ− and missing energy events with the KLOE experiment / Anastasi, A; Ceradini, Filippo; DI CICCO, Alessandro; Loffredo, Salvatore. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 747:(2015), pp. 365-372. [10.1016/j.physletb.2015.06.015]
Search for dark Higgsstrahlung in e+e− → μ+μ− and missing energy events with the KLOE experiment
LOFFREDO, SALVATORE
2015
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 DAFNE. 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
