423 citations · 1.3k across the 29 of their papers we have counts for
29 papers
Search for reactor-produced millicharged particles with Skipper-CCDs at the CONNIE and Atucha-II experiments
Alexis A. Aguilar-Arevalo, Nicolas Avalos, Pablo Bellino +37
Millicharged particles, proposed by various extensions of the standard model, can be created in pairs by high-energy photons within nuclear reactors and can interact electromagneti…
Fast Single-Quantum Measurement with a Multi-Amplifier Sensing Charge-Coupled Device
Ana M. Botti, Brenda A. Cervantes-Vergara, Claudio R. Chavez +11
A novel readout architecture that uses multiple non-destructive floating-gate amplifiers to achieve sub-electron readout noise in a thick, fully-depleted silicon detector is presen…
Dual-sided Charge-Coupled Devices
Javier Tiffenberg, Daniel Egaña-Ugrinovic, Miguel Sofo Haro +4
Existing Charge-Coupled Devices (CCDs) operate by detecting either the electrons or holes created in an ionization event. We propose a new type of imager, the Dual-Sided CCD, which…
SENSEI: Search for Millicharged Particles produced in the NuMI Beam
Liron Barak, Itay M. Bloch, Ana M. Botti +28
Millicharged particles appear in several extensions of the Standard Model, but have not yet been detected. These hypothetical particles could be produced by an intense proton beam…
A Sub-Electron-Noise Multi-Channel Cryogenic Skipper-CCD Readout ASIC
Fabricio Alcalde Bessia, Troy England, Hongzhi Sun +6
The \emph{MIDNA} application specific integrated circuit (ASIC) is a skipper-CCD readout chip fabricated in a 65 nm LP-CMOS process that is capable of working at cryogenic temperat…
First results from a multiplexed and massive instrument with sub-electron noise Skipper-CCDs
F. Chierchie, C. R. Chavez, M. Sofo Haro +7
We present a new instrument composed of a large number of sub-electron noise Skipper-CCDs operated with a two stage analog multiplexed readout scheme suitable for scaling to thousa…
EXCESS workshop: Descriptions of rising low-energy spectra
P. Adari, A. Aguilar-Arevalo, D. Amidei +303
Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the signifi…
Constraints on the electron-hole pair creation energy and Fano factor below 150 eV from Compton scattering in a Skipper-CCD
A. M. Botti, S. Uemura, G. Fernandez Moroni +9
Fully-depleted thick silicon Skipper-charge-coupled devices (Skipper-CCDs) are an important technology to probe neutrino and light-dark-matter interactions due to their sub-electro…
The Skipper CCD for low-energy threshold particle experiments above ground
Guillermo Fernandez Moroni, Fernando Chierchie, Javier Tiffenberg +11
We present experimental results using a single-electron resolution Skipper-CCD running above ground level to demonstrate the potential of this technology for its use in reactor neu…
Analog pile-up circuit technique using a single capacitor for the readout of Skipper-CCD detectors
Miguel Sofo Haro, Claudio Chavez, Jose Lipovetzky +8
With Skipper-CCD detectors it is possible to take multiple samples of the charge packet collected on each pixel. After averaging the samples, the noise can be extremely reduced all…
SENSEI: Characterization of Single-Electron Events Using a Skipper-CCD
Liron Barak, Itay M. Bloch, Ana Botti +22
We use a science-grade Skipper Charge Coupled Device (Skipper-CCD) operating in a low-radiation background environment to develop a semi-empirical model that characterizes the orig…
Smart-readout of the Skipper-CCD: Achieving Sub-electron Noise Levels in Regions of Interest
Fernando Chierchie, Guillermo Fernandez Moroni, Leandro Stefanazzi +7
The skipper CCD is a special type of charge coupled device in which the readout noise can be reduced to sub-electron levels by averaging independent measurements of the same charge…
Low Threshold Acquisition controller for Skipper CCDs
Gustavo Cancelo, Claudio Chavez, Fernando Chierchie +10
The development of the Skipper Charge Coupled Devices (Skipper-CCDs) has been a major technological breakthrough for sensing very weak ionizing particles. The sensor allows to reac…
Absolute measurement of the Fano factor using a Skipper-CCD
Dario Rodrigues, Kevin Andersson, Mariano Cababie +11
Skipper-CCD can achieve deep sub-electron readout noise making possible the absolute determination of the exact number of ionized electrons in a large range, from 0 to above 1900 e…
SENSEI: Direct-Detection Results on sub-GeV Dark Matter from a New Skipper-CCD
Liron Barak, Itay M. Bloch, Mariano Cababie +20
We present the first direct-detection search for eV-to-GeV dark matter using a new ~2-gram high-resistivity Skipper-CCD from a dedicated fabrication batch that was optimized for da…
Search for light mediators in the low-energy data of the CONNIE reactor neutrino experiment
Alexis Aguilar-Arevalo, Xavier Bertou, Carla Bonifazi +23
The CONNIE experiment is located at a distance of 30 m from the core of a commercial nuclear reactor, and has collected a 3.7 kg-day exposure using a CCD detector array sensitive t…
Contributions of the LAGO Collaboration to the 36th ICRC
A. Alberto, W. Alvarez, L. Ancari +90
The LAGO (Latin American Giant Observatory) observatory is an experiment that spans over Latin America in a wide range of latitudes that gives different rigidity cut offs for the e…
Studies on small charge packet transport in high-resistivity fully-depleted CCDs
Miguel Sofo Haro, Guillermo Fernandez Moroni, Javier Tiffenberg
In this work, we will present a physical model and measurements of the transport of small charge packets in the bulk of thick high resistivity CCD before being collected by the pix…
SENSEI: First Direct-Detection Constraints on sub-GeV Dark Matter from a Surface Run
The SENSEI Collaboration, Michael Crisler, Rouven Essig +6
The Sub-Electron-Noise Skipper CCD Experimental Instrument (SENSEI) uses the recently developed Skipper-CCD technology to search for electron recoils from the interaction of sub-Ge…
The CONNIE experiment
CONNIE Collaboration, A. Aguilar-Arevalo, X. Bertou +28
The CONNIE experiment uses fully depleted, high resistivity CCDs as particle detectors in an attempt to measure for the first time the Coherent Neutrino-Nucleus Elastic Scattering…
Search for low-mass WIMPs in a 0.6 kg day exposure of the DAMIC experiment at SNOLAB
A. Aguilar-Arevalo, D. Amidei, X. Bertou +35
We present results of a dark matter search performed with a 0.6 kg day exposure of the DAMIC experiment at the SNOLAB underground laboratory. We measure the energy spectrum of ioni…
The Latin American Giant Observatory: Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)
The LAGO Collaboration, W. Alvarez, C. Alvarez +86
The Latin American Giant Observatory (LAGO) is an extended cosmic ray observatory composed by a network of water-Cherenkov detectors spanning over different sites located at signif…
Results of the engineering run of the Coherent Neutrino Nucleus Interaction Experiment (CONNIE)
A. Aguilar-Arevalo, X. Bertou, C. Bonifazi +25
The CONNIE detector prototype is operating at a distance of 30 m from the core of a 3.8 GW nuclear reactor with the goal of establishing Charge-Coupled Devices (CCD) as…
The DAMIC dark matter experiment
A. Aguilar-Arevalo, D. Amidei, X. Bertou +30
The DAMIC (Dark Matter in CCDs) experiment uses high resistivity, scientific grade CCDs to search for dark matter. The CCD's low electronic noise allows an unprecedently low energy…