Explanipedia

First Production of Skipper-CCD Modules for the DAMIC-M Experiment Open

H. Lin, M. Traina, Sanjoy Kumar Paul, Kavita Aggarwal, I. J. Arnquist , et al. · 2025

The DAMIC-M experiment will search for sub-GeV dark matter particles with a large array of silicon skipper charge-coupled devices (CCDs) at the Modane Underground Laboratory (LSM) in France. After five years of development, we recently com…

Probing Benchmark Models of Hidden-Sector Dark Matter with DAMIC-M Open

NULL AUTHOR_ID, I. J. Arnquist, N. Ávalos, X. Bertou, N. Castelló-Mor , et al. · 2025

We report on a search for sub-GeV dark matter (DM) particles interacting with electrons using the DAMIC-M prototype detector at the Modane Underground Laboratory. The data feature a significantly lower detector single e− rate (factor 50) c…

The DAMIC-M Low Background Chamber Open

I. J. Arnquist, Nicolás Avalos, P. Bailly, D. Baxter, X. Bertou , et al. · 2024

The DArk Matter In CCDs at Modane (DAMIC-M) experiment is designed to search for light dark matter (m χ < 10 GeV/c 2 ) at the Laboratoire Souterrain de Modane (LSM) in France. DAMIC-M will use skipper charge-coupled devices (CCDs) as a kg-…

Searches for CEνNS and Physics beyond the Standard Model using Skipper-CCDs at CONNIE Open

A. A. Aguilar-Arevalo, Nicolás Avalos, X. Bertou, C. Bonifazi, Gustavo Cancelo , et al. · 2024

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) aims to detect the coherent scattering (CE$\\nu$NS) of reactor antineutrinos off silicon nuclei using thick fully-depleted high-resistivity silicon CCDs. Two Skipper-CCD sensors…

Model-independent searches of new physics in DARWIN with a semi-supervised deep learning pipeline Open

J. Aalbers, K Abe, Miquel Adrover, S. Ahmed Maouloud, L. Althueser , et al. · 2024

We present a novel deep learning pipeline to perform a model-independent, likelihood-free search for anomalous (i.e., non-background) events in the proposed next generation multi-ton scale liquid Xenon-based direct detection experiment, DA…

Search for reactor-produced millicharged particles with Skipper-CCDs at the CONNIE and Atucha-II experiments Open

A. A. Aguilar-Arevalo, Nicolás Avalos, P. Bellino, X. Bertou, C. Bonifazi , et al. · 2024

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 electromagnetically with electrons in matter. Recently, the existence of …

Searches for CEνNS and Physics beyond the Standard Model using Skipper-CCDs at CONNIE Open

A. A. Aguilar-Arevalo, Nicolás Avalos, X. Bertou, C. Bonifazi, Gustavo Cancelo , et al. · 2024

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) aims to detect the coherent scattering (CE$ν$NS) of reactor antineutrinos off silicon nuclei using thick fully-depleted high-resistivity silicon CCDs. Two Skipper-CCD sensors wi…

Confirmation of the excess of ionization events in DAMIC at SNOLAB with skipper CCDs Open

Michelangelo Traina, A. A. Aguilar-Arevalo, I. J. Arnquist, N. Avalos, L. Barak , et al. · 2024

We present results from a 3.2 kg-day target exposure of two 24-megapixel skipper charge-coupled devices (CCDs) deployed in the DAMIC setup at SNOLAB. With a 10× reduction in pixel noise, we investigate the excess population of low-energy b…

Nuclear Recoil Identification in a Scientific Charge-Coupled Device Open

Kellie McGuire, Á. Chavarría, N. Castelló-Mor, S. Lee, B. Kilminster , et al. · 2023

Charge-coupled devices (CCDs) are a leading technology in direct dark matter searches because of their eV-scale energy threshold and high spatial resolution. The sensitivity of future CCD experiments could be enhanced by distinguishing nuc…

A Comprehensive Characterization of the TI-LGAD Technology Open

M. Senger, A. Macchiolo, B. Kilminster, G. Paternoster, M. Centis Vignali , et al. · 2023

Pixelated low-gain avalanche diodes (LGADs) can provide both precision spatial and temporal measurements for charged particle detection; however, electrical termination between the pixels yields a no-gain region, such that the active area …

Cosmogenic background simulations for the DARWIN observatory at\n different underground locations Open

Martín F. Adrover, L. Althueser, B. Andrieu, E. Angelino, J. R. Angevaare , et al. · 2023

Xenon dual-phase time projections chambers (TPCs) have proven to be a\nsuccessful technology in studying physical phenomena that require\nlow-background conditions. With 40t of liquid xenon (LXe) in the TPC baseline\ndesign, DARWIN will ha…

Mineral detection of neutrinos and dark matter. A whitepaper Open

Sebastian Baum, Patrick Stengel, Natsue Abe, Javier F. Acevedo, G. R. Araujo , et al. · 2023

Mineral Detection of Neutrinos and Dark Matter. A Whitepaper Open

Sebastian Baum, Patrick Stengel, Natsue Abe, Javier F. Acevedo, G. R. Araujo , et al. · 2023

Minerals are solid state nuclear track detectors - nuclear recoils in a mineral leave latent damage to the crystal structure. Depending on the mineral and its temperature, the damage features are retained in the material from minutes (in l…

Report on scipost_202210_00052v2 Open

I. J. Arnquist, N. Ávalos, P. Bailly, D. Baxter, X. Bertou , et al. · 2022

The DAMIC-M (DArk Matter In CCDs at Modane) experiment employs thick, fully depleted silicon charged-coupled devices (CCDs) to search for dark matter particles with a

Characterization of passive CMOS sensors with RD53A pixel modules Open

F. Glessgen, M. Backhaus, F. Canelli, Y. Dieter, J. Dingfelder , et al. · 2022

Both the current upgrades to accelerator-based HEP detectors (e.g. ATLAS, CMS) and also future projects (e.g. CEPC, FCC) feature large-area silicon-based tracking detectors. We are investigating the feasibility of using CMOS foundries to f…

Development of a timing chip prototype in 110 nm CMOS technology Open

L. Caminada, B. Kilminster, A. Macchiolo, Beat H. Meier, M. Senger , et al. · 2022

We present a readout chip prototype for future pixel detectors with timing capabilities. The prototype is intended for characterizing 4D pixel arrays with a pixel size of 100x100 μm 2 , where the sensors are Low Gain Avalanche Diodes (LGAD…

Characterization of irradiated RD53A pixel modules with passive CMOS sensors Open

A. Jofrehei, M. Backhaus, P. Baertschi, F. Canelli, F. Glessgen , et al. · 2022

We are investigating the feasibility of using CMOS foundries to fabricate silicon detectors, both for pixels and for large-area strip sensors. The availability of multi-layer routing will provide the freedom to optimize the sensor geometry…

Search for coherent elastic neutrino-nucleus scattering at a nuclear reactor with CONNIE 2019 data Open

A. A. Aguilar-Arevalo, Javier Bernal, X. Bertou, C. Bonifazi, Gustavo Cancelo , et al. · 2022

Characterization of the background spectrum in DAMIC at SNOLAB Open

A. A. Aguilar-Arevalo, D. Amidei, I. J. Arnquist, D. Baxter, Gustavo Cancelo , et al. · 2022

We construct the first comprehensive radioactive background model for a dark matter search with charge-coupled devices (CCDs). We leverage the well-characterized depth and energy resolution of the DAMIC at SNOLAB detector and a detailed GE…

Characterization of passive CMOS sensors with RD53A pixel modules Open

F. Glessgen, M. Backhaus, F. Canelli, Y. Dieter, J. Dingfelder , et al. · 2022

Both the current upgrades to accelerator-based HEP detectors (e.g. ATLAS, CMS) and also future projects (e.g. CEPC, FCC) feature large-area silicon-based tracking detectors. We are investigating the feasibility of using CMOS foundries to f…

Results on low-mass weakly interacting massive particles from a 11 kg d target exposure of DAMIC at SNOLAB Open

M. Traina, A. A. Aguilar-Arevalo, D. Amidei, I. J. Arnquist, D. Baxter , et al. · 2021

Experimental efforts of the last decades have been unsuccessful in detecting\nWIMPs (Weakly Interacting Massive Particles) in the 10-to-10$^4$ GeV/$c^2$\nrange, thus motivating the search for lighter dark matter. The DAMIC (DArk\nMatter In…

Measurement of the bulk radioactive contamination of detector-grade silicon with DAMIC at SNOLAB Open

A. A. Aguilar-Arevalo, D. Amidei, D. Baxter, Gustavo Cancelo, Brenda A. Cervantes-Vergara , et al. · 2021

We present measurements of bulk radiocontaminants in the high-resistivity silicon CCDs from the DAMIC experiment at SNOLAB. We utilize the exquisite spatial resolution of CCDs to discriminate between α and β decays, and to search with high…

Solar neutrino detection sensitivity in DARWIN via electron scattering Open

J. Aalbers, F. Agostini, S. Ahmed Maouloud, M. Alfonsi, L. Althueser , et al. · 2020

Investigation of crosstalk effects in RD53A modules with 100 and 150 $\mathrm{\mu m}$ thick n-in-p planar sensors Open

A. Jofrehei, F. Canelli, B. Kilminster, S. Leontsinis, A. Macchiolo , et al. · 2020

The CMS and ATLAS detectors will face challenging conditions after the upgrade of the LHC to the High Luminosity LHC. In particular, the granularity of the pixel detectors should increase to mitigate the effect of pileup. Two possible sens…

Solar Neutrino Detection Sensitivity in DARWIN via Electron Scattering Open

J. Aalbers, F. Agostini, S. Ahmed Maouloud, M. Alfonsi, L. Althueser , et al. · 2020

We detail the sensitivity of the liquid xenon (LXe) DARWIN observatory to solar neutrinos via elastic electron scattering. We find that DARWIN will have the potential to measure the fluxes of five solar neutrino components: $pp$, $^7$Be, $…

Search for light mediators in the low-energy data of the CONNIE reactor neutrino experiment Open

A. A. Aguilar-Arevalo, X. Bertou, C. Bonifazi, Gustavo Cancelo, Brenda A. Cervantes-Vergara , et al. · 2020

Light vector mediator search in the low-energy data of the CONNIE reactor neutrino experiment Open

A. A. Aguilar-Arevalo, X. Bertou, C. Bonifazi, Gustavo Cancelo, Brenda A. Cervantes-Vergara , et al. · 2019

Gain and time resolution of thin Low Gain Avalanche Detectors. Open

Riccardo del Burgo, F. Canelli, S. Hidalgo, B. Kilminster, G. Pellegrini , et al. · 2019

The CMS MIP Timing Detector, proposed for the HL-LHC upgrade, will be instrumented with O(10) square meters of ultra-fast Silicon detectors (UFSD) in the forward region. These UFSDs are aimed at measuring the time of passage of each track …

Results from 2015 and the 2016 upgrade of the CONNIE experiment for detecting coherent neutrino nucleus scattering Open

B. Kilminster, A. A. Aguilar-Arevalo, X. Bertou, C. Bonifazi, Melissa Butner , et al. · 2019

The CONNIE Experiment (Coherent Neutrino Nucleus Interaction Experiment) is currently collecting reactor neutrino data to search for the undiscovered standard model process of coherent neutrino-nucleus scattering (CNNS). The detector is co…

Reconstruction of lepton pair invariant mass using an artificial neural network Open

P. Bärtschi, C. Galloni, C. Lange, B. Kilminster · 2019

B. Kilminster YOU? Author Swipe