PADME (Positron Annihilation into Dark Matter Experiment) is an experiment that will search for the production of a dark photon A′ from the annihilation of a positron beam on a thin diamond target. It will use the 550 MeV positron beam of the Beam Test Facility (BTF) of the Laboratori Nazionali di Frascati (LNF) of INFN. According to the PADME design, the region of sensitivity is MAjavax.xml.bind.JAXBElement@2fefeb98≤23.7 MeV/c2 and ϵ2>10−6, where MAjavax.xml.bind.JAXBElement@30b8828a and ϵ are the dark photon mass and the A′γ mixing parameter. This paper presents the status of the active diamond target, in particular the assembly of two 32 channel targets of polycrystalline Chemical Vapor Deposition (CVD) diamond, one with graphitic strips and another with traditional CrAu strips.
Searching for a dark photon with PADME at LNF: status of the active diamond target
A. P. Caricato;F. Gontad;M. Martino;I. Oceano;F. Oliva;S. Spagnolo
2019-01-01
Abstract
PADME (Positron Annihilation into Dark Matter Experiment) is an experiment that will search for the production of a dark photon A′ from the annihilation of a positron beam on a thin diamond target. It will use the 550 MeV positron beam of the Beam Test Facility (BTF) of the Laboratori Nazionali di Frascati (LNF) of INFN. According to the PADME design, the region of sensitivity is MAjavax.xml.bind.JAXBElement@2fefeb98≤23.7 MeV/c2 and ϵ2>10−6, where MAjavax.xml.bind.JAXBElement@30b8828a and ϵ are the dark photon mass and the A′γ mixing parameter. This paper presents the status of the active diamond target, in particular the assembly of two 32 channel targets of polycrystalline Chemical Vapor Deposition (CVD) diamond, one with graphitic strips and another with traditional CrAu strips.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
