Author:
Albicocco P.,Assiro R.,Bossi F.,Branchini P.,Buonomo B.,Capirossi V.,Capitolo E.,Capoccia C.,Caricato A.P.,Ceravolo S.,Chiodini G.,Corradi G.,De Sangro R.,Di Giulio C.,Domenici D.,Ferrarotto F.,Fiore S.,Finocchiaro G.,Foggetta L.G,Frankenthal A.,Garattini M.,Georgiev G.,Giacchino F.,Ghigo A.,Gianotti P.,Gontad F.,Iazzi F.,Ivanov S.,Ivanov Sv.,Kozhuharov V.,Leonardi E.,Long E.,Martini M.,Martino M.,Miccoli A.,Oceano I.,Oliva F.,Organtini G.C.,Pinna F.,Piperno G.,Pinto C.,Raggi M.,Safai Tehrani F.,Saputi A.,Sarra I.,Sciascia B.,Simeonov R.,Spadaro T.,Spagnolo S.,Spiriti E.,Tagnani D.,Tsankov l.,Taruggi C.,Valente P.,Variola A.,Vilucchi E.
Abstract
Abstract
The PADME experiment is designed to search for a
hypothetical dark photon A'
produced in positron-electron
annihilation using a bunched positron beam at the Beam Test Facility
of the INFN Laboratori Nazionali di Frascati. The expected
sensitivity to the A'
-photon mixing parameter ϵ
is 10-3, for A'
mass ≤ 23.5 MeV/c
2 after
collecting ∼ 1013 positrons-on-target.
This paper presents the PADME detector status after commissioning in
July 2019. In addition, the software algorithms employed to
reconstruct physics objects, such as photons and charged particles,
and the calibration procedures adopted are illustrated in detail.
The results show that the experimental apparatus reaches the design
performance, and is able to identify and measure standard
electromagnetic processes, such as positron bremsstrahlung and
electron-positron annihilation into two photons.
Subject
Mathematical Physics,Instrumentation
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