Publications (61)
Search for the eta-mesic 4He with WASA-at-COSY detector
P. Adlarson, W. Augustyniak, W. Bardan +111
An exclusive measurement of the excitation function for the dd->3Heppi- reaction was performed at the Cooler Synchrotron COSY-Juelich with the WASA-at-COSY detection system. The da…
Search for Neutrinoless Double-Beta Decay in Xe with EXO-200
M. Auger, D. J. Auty, P. S. Barbeau +75
We report on a search for neutrinoless double-beta decay of Xe with EXO-200. No signal is observed for an exposure of 32.5 kg-yr, with a background of ~1.5 x 10^{-3} /(kg y…
Searching non-standard interactions with atmospheric neutrinos at ESSnuSB
ESSnuSB, :, J. Aguilar +91
Atmospheric neutrinos provide a unique avenue to study neutrino interactions in matter. In this work, the prospects of constraining non-standard neutrino interactions with atmosphe…
Study of Silicon Photomultiplier Performance in External Electric Fields
X. L. Sun, T. Tolba, G. F. Cao +149
We report on the performance of silicon photomultiplier (SiPM) light sensors operating in electric field strength up to 30 kV/cm and at a temperature of 149K, relative to their per…
The ESSnuSB design study: overview and future prospects
ESSnuSB Collaboration, A. Alekou, E. Baussan +83
ESSnuSB is a design study for an experiment to measure the CP violation in the leptonic sector at the second neutrino oscillation maximum using a neutrino beam driven by the unique…
Imaging individual barium atoms in solid xenon for barium tagging in nEXO
C. Chambers, T. Walton, D. Fairbank +148
The search for neutrinoless double beta decay probes the fundamental properties of neutrinos, including whether or not the neutrino and antineutrino are distinct. Double beta detec…
Generative Adversarial Networks for Scintillation Signal Simulation in EXO-200
S. Li, I. Ostrovskiy, Z. Li +87
Generative Adversarial Networks trained on samples of simulated or actual events have been proposed as a way of generating large simulated datasets at a reduced computational cost.…
Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector
J. B. Albert, G. Anton, I. Badhrees +90
Results from a search for neutrinoless double-beta decay of Xe are presented using the first year of data taken with the upgraded EXO-200 detector. Relative to pr…
Characterization of the Hamamatsu VUV4 MPPCs for nEXO
G. Gallina, P. Giampa, F. Retiere +148
In this paper we report on the characterization of the Hamamatsu VUV4 (S/N: S13370-6152) Vacuum Ultra-Violet (VUV) sensitive Silicon Photo-Multipliers (SiPMs) as part of the develo…
Search for a dark photon in the decay
COSY Collaboration, P. Adlarson, W. Augustyniak +113
The presently world largest data sample of pi0 --> gamma e+e- decays containing nearly 5E5 events was collected using the WASA detector at COSY. A search for a dark photon U produc…
Classification of Electron and Muon Neutrino Events for the ESSSB Near Water Cherenkov Detector using Graph Neural Networks
J. Aguilar, M. Anastasopoulos, D. BarÄot +94
In the effort to obtain a precise measurement of leptonic CP-violation with the ESSSB experiment, accurate and fast reconstruction of detector events plays a pivotal role. In t…
Probing Long-Range Forces in Neutrino Oscillations at the ESSnuSB Experiment
ESSnuSB, :, J. Aguilar +97
Neutrino oscillations constitute an excellent tool to probe physics beyond the Standard Model. In this paper, we investigate the potential of the ESSnuSB experiment to constrain th…
Cosmogenic Backgrounds to 0νββ in EXO-200
200 Collaboration, J. B. Albert, D. J. Auty +84
As neutrinoless double-beta decay experiments become more sensitive and intrinsic radioactivity in detector materials is reduced, previously minor contributions to the background m…
Ï^0 Ï^0 Production in Proton-Proton Collisions at Tp=1.4 GeV
P. Adlarson, C. Adolph, W. Augustyniak +111
The reaction pp->pppi0pi0 has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +- 21_systematic +- 58_norm…
Search for Majorana neutrinos with the first two years of EXO-200 data
200 Collaboration, J. B. Albert, D. J. Auty +91
Many extensions of the Standard Model of particle physics suggest that neutrinos should be Majorana-type fermions, but this assumption is difficult to confirm. Observation of neutr…
Search for Double Beta Decays of Xe with EXO-200 Phase II
S. Al Kharusi, G. Anton, I. Badhrees +102
EXO-200 was a leading double beta decay experiment consisting of a single-phase, enriched liquid xenon time projection chamber filled with an admixture of 80.672% Xe and 19…
The European Spallation Source neutrino Super Beam
A. Alekou, E. Baussan, N. Blaskovic Kraljevic +59
In this Snowmass 2021 white paper, we summarise the Conceptual Design of the European Spallation Source neutrino Super Beam (ESSvSB) experiment and its synergies with the possible…
Search for Two-neutrino Double-Beta Decay of to the excited state of with the Complete EXO-200 Dataset
200 Collaboration, S. Al Kharusi, G. Anton +104
A new search for two-neutrino double-beta () decay of to the excited state of is performed with the full EXO-200 dataset. A deep lear…
Complementarity between atmospheric and super-beam neutrinos at ESSnuSB
ESSnuSB, :, J. Aguilar +92
The ESSnuSB experiment aims to measure the leptonic CP phase with an unprecedented resolution by probing neutrino oscillations at the second oscillation maximum. In the p…
Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double beta decay
nEXO Collaboration, J. B. Albert, G. Anton +143
The next-generation Enriched Xenon Observatory (nEXO) is a proposed experiment to search for neutrinoless double beta () decay in Xe with a target half-life sensit…
Study of Supernova Neutrinos at ESSnuSB
ESSnuSB, :, J. Aguilar +96
In this paper, we have studied the sensitivity of the ESSnuSB far detector to supernova neutrinos. ESSnuSB is a proposed long-baseline neutrino experiment in Sweden, which will use…
An Optimal Energy Estimator to Reduce Correlated Noise for the EXO-200 Light Readout
200 Collaboration, C. G. Davis, C. Hall +84
The energy resolution of the EXO-200 detector is limited by electronics noise in the measurement of the scintillation response. Here we present a new technique to extract optimal s…
Investigation of the dd -> 3He n Ï0 reaction with the FZ Jülich WASA-at-COSY facility
COSY Collaboration, P. Adlarson, W. Augustyniak +112
An exclusive measurement of the dd -> 3He n Ï0 reaction was carried at a beam momentum of p = 1.2 GeV/c using the WASA-at-COSY facility. For the first time data on the total cross…
An apparatus to manipulate and identify individual Ba ions from bulk liquid Xe
K. Twelker, S. Kravitz, M. Montero DÃez +77
We describe a system to transport and identify barium ions produced in liquid xenon, as part of R&D towards the second phase of a double beta decay experiment, nEXO. The goal is to…
Search for Majoron-emitting modes of Xe double beta decay with the complete EXO-200 dataset
S. Al Kharusi, G. Anton, I. Badhrees +103
A search for Majoron-emitting modes of the neutrinoless double-beta decay of Xe is performed with the full EXO-200 dataset. This dataset consists of a total Xe expo…
nEXO Pre-Conceptual Design Report
nEXO Collaboration, S. Al Kharusi, A. Alamre +171
The projected performance and detector configuration of nEXO are described in this pre-Conceptual Design Report (pCDR). nEXO is a tonne-scale neutrinoless double beta () d…
Searches for Double Beta Decay of Xe with EXO-200
200 Collaboration, J. B. Albert, G. Anton +90
Searches for double beta decay of Xe were performed with EXO-200, a single-phase liquid xenon detector designed to search for neutrinoless double beta decay of Xe.…
An improved measurement of the 2νββ half-life of Xe-136 with EXO-200
J. B. Albert, M. Auger, D. J. Auty +94
We report on an improved measurement of the 2νββ half-life of Xe-136 performed by EXO-200. The use of a large and homogeneous time projection chamber allows for the precise esti…
VUV-sensitive Silicon Photomultipliers for Xenon Scintillation Light Detection in nEXO
A. Jamil, T. Ziegler, P. Hufschmidt +140
Future tonne-scale liquefied noble gas detectors depend on efficient light detection in the VUV range. In the past years Silicon Photomultipliers (SiPMs) have emerged as a valid al…
Search for nucleon decays with EXO-200
J. B. Albert, G. Anton, I. Badhrees +92
A search for instability of nucleons bound in Xe nuclei is reported with 223 kgyr exposure of Xe in the EXO-200 experiment. Lifetime limits of 3.3$\times 10^…
Updated physics performance of the ESSnuSB experiment
A. Alekou, E. Baussan, N. Blaskovic Kraljevic +48
In this paper, we present the physics performance of the ESSnuSB experiment in the standard three flavor scenario using the updated neutrino flux calculated specifically for the ES…
Measurements of the ion fraction and mobility of alpha and beta decay products in liquid xenon using EXO-200
J. B. Albert, D. J. Auty, P. S. Barbeau +82
Alpha decays in the EXO-200 detector are used to measure the fraction of charged and daughters created from alpha and beta decays, respectiv…
Investigation of radioactivity-induced backgrounds in EXO-200
J. B. Albert, D. J. Auty, P. S. Barbeau +83
The search for neutrinoless double-beta decay (0νββ) requires extremely low background and a good understanding of their sources and their influence on the rate in the region of…
Decoherence in Neutrino Oscillation at the ESSnuSB Experiment
ESSnuSB, :, J. Aguilar +94
Neutrino oscillation experiments provide a unique window in exploring several new physics scenarios beyond the standard three flavour. One such scenario is quantum decoherence in n…
Search for decay of Xe to the 0 excited state of Ba with EXO-200
200 Collaboration, J. B. Albert, D. J. Auty +88
EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless double-beta decay of Xe to the ground state of Ba. We report here on a search fo…
Search for Neutrinoless Double-Beta Decay with the Complete EXO-200 Dataset
G. Anton, I. Badhrees, P. S. Barbeau +99
A search for neutrinoless double-beta decay () in Xe is performed with the full EXO-200 dataset using a deep neural network to discriminate between and b…
Measurements of electron transport in liquid and gas Xenon using a laser-driven photocathode
O. Njoya, T. Tsang, M. Tarka +153
Measurements of electron drift properties in liquid and gaseous xenon are reported. The electrons are generated by the photoelectric effect in a semi-transparent gold photocathode…
ABC Effect in Basic Double-Pionic Fusion --- Observation of a new resonance?
P. Adlarson, C. Adolph, W. Augustyniak +116
We report on a high-statistics measurement of the basic double pionic fusion reaction over the energy region of the so-called ABC effect, a pronounced low-mass e…
Exploring atmospheric neutrino oscillations at ESSnuSB
ESSnuSB, :, J. Aguilar +86
This study provides an analysis of atmospheric neutrino oscillations at the ESSnuSB far detector facility. The prospects of the two cylindrical Water Cherenkov detectors with a tot…
Particle Physics at the European Spallation Source
H. Abele, A. Alekou, A. Algora +176
Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physic…
Measurement of the Spectral Shape of the beta-decay of 137Xe to the Ground State of 137Cs in EXO-200 and Comparison with Theory
S. Al Kharusi, G. Anton, I. Badhrees +105
We report on a comparison between the theoretically predicted and experimentally measured spectra of the first-forbidden non-unique -decay transition $^{137}\textrm{Xe}(7/2^-)\…
First Search for Lorentz and CPT Violation in Double Beta Decay with EXO-200
200 Collaboration, J. B. Albert, P. S. Barbeau +86
A search for Lorentz- and CPT-violating signals in the double beta decay spectrum of Xe has been performed using an exposure of 100 kgyr with the EXO-200 detector. N…
The EXO-200 detector, part II: Auxiliary Systems
N. Ackerman, J. Albert, M. Auger +157
The EXO-200 experiment searched for neutrinoless double-beta decay of Xe with a single-phase liquid xenon detector. It used an active mass of 110 kg of 80.6%-enriched liqui…
Search for Majoron-emitting modes of double-beta decay of Xe with EXO-200
200 Collaboration, J. B. Albert, D. J. Auty +89
EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless double-beta decay of Xe. Here we report on a search for various Majoron-emitting modes b…
Characterization of an Ionization Readout Tile for nEXO
nEXO Collaboration, M. Jewell, A. Schubert +142
A new design for the anode of a time projection chamber, consisting of a charge-detecting "tile", is investigated for use in large scale liquid xenon detectors. The tile is produce…
Measurement of the Drift Velocity and Transverse Diffusion of Electrons in Liquid Xenon with the EXO-200 Detector
200 Collaboration, J. B. Albert, P. S. Barbeau +84
The EXO-200 Collaboration is searching for neutrinoless double beta decay using a liquid xenon (LXe) time projection chamber. This measurement relies on modeling the transport of c…
A method to suppress dielectric breakdowns in liquid argon ionization detectors for cathode to ground distances of several millimeters
M. Auger, A. Ereditato, D. Goeldi +7
We present a method to reach electric field intensity as high as 400 kV/cm in liquid argon for cathode-ground distances of several millimeters. This can be achieved by suppressing…
Measurement of the Reaction in Search for the Recently Observed Resonance Structure in and systems
P. Adlarson, W. Augustyniak, W. Bardan +110
Exclusive measurements of the quasi-free reaction have been performed by means of collisions at = 1.2 GeV using the WASA detector setup at COSY. Tota…
Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment
200 Collaboration, G. Anton, I. Badhrees +99
Liquid xenon (LXe) is employed in a number of current and future detectors for rare event searches. We use the EXO-200 experimental data to measure the absolute scintillation and i…
Spectroscopy of Ba and Ba deposits in solid xenon for barium tagging in nEXO
B. Mong, S. Cook, T. Walton +73
Progress on a method of barium tagging for the nEXO double beta decay experiment is reported. Absorption and emission spectra for deposits of barium atoms and ions in solid xenon m…
GEANT4 models of HPGe detectors for radioassay
R. H. M. Tsang, A. Piepke, D. J. Auty +7
Radiation transport models of two high purity germanium detectors, GeII and GeIII, located at the University of Alabama have been created in GEANT4 \cite{geant4}. These detectors h…
ABC Resonance Structure in the Double-Pionic Fusion to 4He
P. Adlarson, W. Augustyniak, W. Bardan +109
Exclusive and kinematically complete high-statistics measurements of the double pionic fusion reaction He have been performed in the energy range 0.8 - 1.4 GeV…
Simulation of charge readout with segmented tiles in nEXO
Z. Li, W. R. Cen, A. Robinson +150
nEXO is a proposed experiment to search for the neutrino-less double beta decay () of Xe in a tonne-scale liquid xenon time projection chamber (TPC). The nEXO TPC…
Isospin Decomposition of the Basic Double-Pionic Fusion in the Region of the ABC Effect
P. Adlarson, W. Augustyniak, W. Bardan +111
Exclusive and kinematically complete high-statistics measurements of the basic double pionic fusion reactions pn -> dpi0pi0, pn -> d pi+pi- and pp -> dpi+pi0 have been carried out…
Fundamental Nuclear and Particle Physics At Neutron Sources
H. Abele, J. Amaral, W. R. Anthony +121
Fundamental neutron and neutrino physics at neutron sources, combining precision measurements and theory, can probe new physics at energy scales well beyond the highest energies pr…
Study of non-standard interaction mediated by a scalar field at ESSnuSB experiment
ESSnuSB, :, J. Aguilar +89
In this paper we study non-standard interactions mediated by a scalar field (SNSI) in the context of ESSnuSB experiment. In particular we study the capability of ESSnuSB to put bou…
Search for MeV Electron Recoils from Dark Matter in EXO-200
200 Collaboration, S. Al Kharusi, G. Anton +104
We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron recoil bac…
Exclusive Measurement of the eta --> pi+ pi- gamma Decay
P. Adlarson, C. Adolph, W. Augustyniak +119
An exclusive measurement of the decay eta --> pi+ pi- gamma has been performed at the WASA facility at COSY. The eta mesons were produced in the fusion reaction pd --> 3He X at a p…
Deep Neural Networks for Energy and Position Reconstruction in EXO-200
S. Delaquis, M. J. Jewell, I. Ostrovskiy +91
We apply deep neural networks (DNN) to data from the EXO-200 experiment. In the studied cases, the DNN is able to reconstruct the relevant parameters - total energy and position -…
Trace radioactive impurities in final construction materials for EXO-200
D. S. Leonard, D. Auty, T. Didberidze +98
We report results from a systematic measurement campaign conducted to identify low radioactivity materials for the construction of the EXO-200 double beta decay experiment. Partial…
The European Spallation Source neutrino Super Beam Conceptual Design Report
A. Alekou, E. Baussan, A. K. Bhattacharyya +73
This conceptual design report provides a detailed account of the European Spallation Source neutrino Super Beam (ESSSB) feasibility study. This facility has been proposed after…