The nature of dark matter is still unknown and an experimental program to look for dark matter particles in our Galaxy should extend its sensitivity to light particles in the GeV mass range and exploit the directional information of the DM particle motion (Vahsen et al. in CYGNUS: feasibility of a nuclear recoil observatory with directional sensitivity to dark matter and neutrinos, arXiv:2008.12587, 2020). The Cygno project is studying a gaseous time projection chamber operated at atmospheric pressure with a Gas Electron Multiplier (Sauli in Nucl Instrum Meth A 386:531, https://doi.org/10.1016/S0168-9002(96)01172-2, 1997) amplification and with an optical readout as a promising technology for light dark matter and directional searches. In this paper we describe the operation of a 50 l prototype named LIME (Long Imaging ModulE) in an overground location at Laboratori Nazionali di Frascati (LNF) of INFN. This prototype employs the technology under study for the 1 cubic meter Cygno demonstrator to be installed at the Laboratori Nazionali del Gran Sasso (LNGS) (Amaro et al. in Instruments 2022, 6(1), https://www.mdpi.com/2410-390X/6/1/6, 2022). We report the characterization of LIME with photon sources in the energy range from few keV to several tens of keV to understand the performance of the energy reconstruction of the emitted electron. We achieved a low energy threshold of few keV and an energy resolution over the whole energy range of 10–20%, while operating the detector for several weeks continuously with very high operational efficiency. The energy spectrum of the reconstructed electrons is then reported and will be the basis to identify radio-contaminants of the LIME materials to be removed for future Cygno detectors.

A 50 l Cygno prototype overground characterization / Amaro, Fernando Domingues; Antonietti, Rita; Baracchini, Elisabetta; Benussi, Luigi; Bianco, Stefano; Borra, Francesco; Capoccia, Cesidio; Caponero, Michele; Cardoso, Danilo Santos; Cavoto, Gianluca; Costa, Igor Abritta; Dané, Emiliano; Dho, Giorgio; Di Giambattista, Flaminia; Di Marco, Emanuele; D’Imperio, Giulia; dos Santos, Joaquim Marques Ferreira; di Cortona, Giovanni Grilli; Iacoangeli, Francesco; Kemp, Ernesto; Júnior, Herman Pessoa Lima; Lopes, Guilherme Sebastiao Pinheiro; Júnior, Amaro da Silva Lopes; Maccarrone, Giovanni; Mano, Rui Daniel Passos; Gregorio, Robert Renz Marcelo; Marques, David José Gaspar; Mazzitelli, Giovanni; Mclean, Alasdair Gregor; Meloni, Pietro; Messina, Andrea; Monteiro, Cristina Maria Bernardes; Nobrega, Rafael Antunes; Pains, Igor Fonseca; Paoletti, Emiliano; Passamonti, Luciano; Pelosi, Sandro; Petrucci, Fabrizio; Piacentini, Stefano; Piccolo, Davide; Pierluigi, Daniele; Pinci, Davide; Prajapati, Atul; Renga, Francesco; Roque, Rita Cruz; Rosatelli, Filippo; Russo, Alessandro; Saviano, Giovanna; Spooner, Neil John Curwen; Tesauro, Roberto; Tomassini, Sandro; Torelli, Samuele; Tozzi, Donatella. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 83:10(2023). [10.1140/epjc/s10052-023-11988-9]

A 50 l Cygno prototype overground characterization

Borra, Francesco
Membro del Collaboration Group
;
Cavoto, Gianluca
Writing – Original Draft Preparation
;
Messina, Andrea
Membro del Collaboration Group
;
Piacentini, Stefano
Membro del Collaboration Group
;
Saviano, Giovanna
Membro del Collaboration Group
;
Tozzi, Donatella
Membro del Collaboration Group
2023

Abstract

The nature of dark matter is still unknown and an experimental program to look for dark matter particles in our Galaxy should extend its sensitivity to light particles in the GeV mass range and exploit the directional information of the DM particle motion (Vahsen et al. in CYGNUS: feasibility of a nuclear recoil observatory with directional sensitivity to dark matter and neutrinos, arXiv:2008.12587, 2020). The Cygno project is studying a gaseous time projection chamber operated at atmospheric pressure with a Gas Electron Multiplier (Sauli in Nucl Instrum Meth A 386:531, https://doi.org/10.1016/S0168-9002(96)01172-2, 1997) amplification and with an optical readout as a promising technology for light dark matter and directional searches. In this paper we describe the operation of a 50 l prototype named LIME (Long Imaging ModulE) in an overground location at Laboratori Nazionali di Frascati (LNF) of INFN. This prototype employs the technology under study for the 1 cubic meter Cygno demonstrator to be installed at the Laboratori Nazionali del Gran Sasso (LNGS) (Amaro et al. in Instruments 2022, 6(1), https://www.mdpi.com/2410-390X/6/1/6, 2022). We report the characterization of LIME with photon sources in the energy range from few keV to several tens of keV to understand the performance of the energy reconstruction of the emitted electron. We achieved a low energy threshold of few keV and an energy resolution over the whole energy range of 10–20%, while operating the detector for several weeks continuously with very high operational efficiency. The energy spectrum of the reconstructed electrons is then reported and will be the basis to identify radio-contaminants of the LIME materials to be removed for future Cygno detectors.
2023
dark matter; time projection chamber; CMOS camera
01 Pubblicazione su rivista::01a Articolo in rivista
A 50 l Cygno prototype overground characterization / Amaro, Fernando Domingues; Antonietti, Rita; Baracchini, Elisabetta; Benussi, Luigi; Bianco, Stefano; Borra, Francesco; Capoccia, Cesidio; Caponero, Michele; Cardoso, Danilo Santos; Cavoto, Gianluca; Costa, Igor Abritta; Dané, Emiliano; Dho, Giorgio; Di Giambattista, Flaminia; Di Marco, Emanuele; D’Imperio, Giulia; dos Santos, Joaquim Marques Ferreira; di Cortona, Giovanni Grilli; Iacoangeli, Francesco; Kemp, Ernesto; Júnior, Herman Pessoa Lima; Lopes, Guilherme Sebastiao Pinheiro; Júnior, Amaro da Silva Lopes; Maccarrone, Giovanni; Mano, Rui Daniel Passos; Gregorio, Robert Renz Marcelo; Marques, David José Gaspar; Mazzitelli, Giovanni; Mclean, Alasdair Gregor; Meloni, Pietro; Messina, Andrea; Monteiro, Cristina Maria Bernardes; Nobrega, Rafael Antunes; Pains, Igor Fonseca; Paoletti, Emiliano; Passamonti, Luciano; Pelosi, Sandro; Petrucci, Fabrizio; Piacentini, Stefano; Piccolo, Davide; Pierluigi, Daniele; Pinci, Davide; Prajapati, Atul; Renga, Francesco; Roque, Rita Cruz; Rosatelli, Filippo; Russo, Alessandro; Saviano, Giovanna; Spooner, Neil John Curwen; Tesauro, Roberto; Tomassini, Sandro; Torelli, Samuele; Tozzi, Donatella. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 83:10(2023). [10.1140/epjc/s10052-023-11988-9]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1690659
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