papers

Publications (82)

physics.ins-det2018

Helium-Xenon mixtures to improve topological signature in high pressure gas Xenon TPCs

R. Felkai, F. Monrabal, D. Gonzalez-Díaz +72

Within the framework of xenon-based double beta decay experiments, we propose the possibility to improve the background rejection of an electroluminescent Time Projection Chamber (…

physics.ins-det2020

The Hyper-Kamiokande Experiment -- Snowmass LOI

Kamiokande Collaboration, K. Abe, P. Adrich +387

Hyper-Kamiokande is the next generation underground water Cherenkov detector that builds on the highly successful Super-Kamiokande experiment. The detector which has an 8.4~times l…

hep-ex2021

Sensitivity of the NEXT experiment to Xe-124 double electron capture

G. Martínez-Lema, M. Martínez-Vara, M. Sorel +88

Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different,…

physics.ins-det2013

Present status and future perspectives of the NEXT experiment

The NEXT Collaboration, J. J. Gómez-Cadenas, V. Álvarez +74

NEXT is an experiment dedicated to neutrinoless double beta decay searches in xenon. The detector is a TPC, holding 100 kg of high-pressure xenon enriched in the Xe isotope…

physics.ins-det2025

Performance of an Optical TPC Geant4 Simulation with Opticks GPU-Accelerated Photon Propagation

NEXT Collaboration, I. Parmaksiz, K. Mistry +113

We investigate the performance of Opticks, a NVIDIA OptiX API 7.5 GPU-accelerated photon propagation tool compared with a single-threaded Geant4 simulation. We compare the simulati…

physics.ins-det2012

Near-Intrinsic Energy Resolution for 30 to 662 keV Gamma Rays in a High Pressure Xenon Electroluminescent TPC

NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +75

We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time…

physics.ins-det2019

Radiogenic backgrounds in the NEXT double beta decay experiment

NEXT Collaboration, P. Novella, B. Palmeiro +88

Natural radioactivity represents one of the main backgrounds in the search for neutrinoless double beta decay. Within the NEXT physics program, the radioactivity-induced background…

physics.ins-det2021

Demonstration of background rejection using deep convolutional neural networks in the NEXT experiment

NEXT Collaboration, M. Kekic, C. Adams +88

Convolutional neural networks (CNNs) are widely used state-of-the-art computer vision tools that are becoming increasingly popular in high energy physics. In this paper, we attempt…

physics.ins-det2011

The NEXT-100 experiment for neutrinoless double beta decay searches (Conceptual Design Report)

NEXT Collaboration, V. Álvarez, M. Ball +80

We propose an EASY (Electroluminescent ApparatuS of high Yield) and SOFT (Separated Optimized FuncTion) time-projection chamber for the NEXT experiment, that will search for neutri…

physics.ins-det2019

Demonstration of the event identification capabilities of the NEXT-White detector

NEXT Collaboration, P. Ferrario, J. M. Benlloch-Rodríguez +88

In experiments searching for neutrinoless double-beta decay, the possibility of identifying the two emitted electrons is a powerful tool in rejecting background events and therefor…

physics.ins-det2021

PETALO read-out: A novel approach for data acquisition systems in PET applications

V. Herrero-Bosch, R. Gadea, R. J. Aliaga +7

PETALO (a Positron Emission Tof Apparatus based on Liquid xenOn) is a new approach for Positron Emission Tomography scanners, based on liquid xenon. The PETALO detector aims at cap…

physics.ins-det2019

High Pressure Gas Xenon TPCs for Double Beta Decay Searches

J. J. Gomez-Cadenas, F. Monrabal, P. Ferrario

This article reviews the application of high pressure gas xenon (HPXe) time projection chambers to neutrinoless double beta decay experiments. First, the fundamentals of the techno…

physics.ins-det2014

Characterisation of NEXT-DEMO using xenon K X-rays

NEXT Collaboration, D. Lorca, J. Martín-Albo +63

The NEXT experiment aims to observe the neutrinoless double beta decay of Xe in a high pressure gas TPC using electroluminescence (EL) to amplify the signal from ionization…

physics.ins-det2020

Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and Xenon

K. Woodruff, J. Baeza-Rubio, D. Huerta +91

Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D…

physics.ins-det2023

Design, characterization and installation of the NEXT-100 cathode and electroluminescence regions

NEXT Collaboration, K. Mistry, L. Rogers +107

NEXT-100 is currently being constructed at the Laboratorio Subterráneo de Canfranc in the Spanish Pyrenees and will search for neutrinoless double beta decay using a high-pressure…

hep-ex2026

First results of the NEXT-100 detector using Kr decays

NEXT Collaboration, G. Martínez-Lema, C. Hervés Carrete +113

The NEXT collaboration is investigating the double beta decay of Xe using high-pressure gas electroluminescent time projection chambers, which provide excellent energy reso…

physics.ins-det2014

Backgrounds and sensitivity of the NEXT double beta decay experiment

M. Nebot-Guinot, P. Ferrario, J. Martin-Albo +2

NEXT (Neutrino Experiment with a Xenon TPC) is a neutrinoless double-beta (ββ0ν) decay experiment that will operate at the Canfranc Underground Laboratory (LSC). It is an electr…

physics.ins-det2016

First proof of topological signature in the high pressure xenon gas TPC with electroluminescence amplification for the NEXT experiment

NEXT Collaboration, P. Ferrario, A. Laing +67

The NEXT experiment aims to observe the neutrinoless double beta decay of xenon in a high-pressure Xe136 gas TPC using electroluminescence (EL) to amplify the signal from ionizatio…

physics.ins-det2018

Demonstration of Single Barium Ion Sensitivity for Neutrinoless Double Beta Decay using Single Molecule Fluorescence Imaging

A. D. McDonald, B. J. P. Jones, D. R. Nygren +71

A new method to tag the barium daughter in the double beta decay of Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dic…

physics.ins-det2016

Investigation of the Coincidence Resolving Time performance of a PET scanner based on liquid xenon: A Monte Carlo study

J. J Gomez-Cadenas, J. M. Benlloch-Rodríguez, P. Ferrario +3

The measurement of the time of flight of the two 511 keV gammas recorded in coincidence in a PET scanner provides an effective way of reducing the random background and therefore i…

physics.ins-det2023

Monte Carlo characterization of PETALO, a full-body liquid xenon-based PET detector

J. Renner, C. Romo-Luque, R. J. Aliaga +24

New detector approaches in Positron Emission Tomography imaging will play an important role in reducing costs, lowering administered radiation doses, and improving overall performa…

physics.ins-det2021

Boosting background suppression in the NEXT experiment through Richardson-Lucy deconvolution

A. Simón, Y. Ifergan, A. B. Redwine +100

Next-generation neutrinoless double beta decay experiments aim for half-life sensitivities of ~ yr, requiring suppressing backgrounds to <1 count/tonne/yr. For this, any e…

physics.ins-det2020

Dependence of polytetrafluoroethylene reflectance on thickness at visible and ultraviolet wavelengths in air

S. Ghosh, J. Haefner, J. Martín-Albo +88

Polytetrafluoroethylene (PTFE) is an excellent diffuse reflector widely used in light collection systems for particle physics experiments. However, the reflectance of PTFE is a fun…

physics.ins-det2017

Application and performance of an ML-EM algorithm in NEXT

NEXT Collaboration, A. Simón, C. Lerche +67

The goal of the NEXT experiment is the observation of neutrinoless double beta decay in Xe using a gaseous xenon TPC with electroluminescent amplification and specialized p…

hep-ex2011

Sense and sensitivity of double beta decay experiments

J. J. Gomez-Cadenas, J. Martin-Albo, M. Sorel +5

The search for neutrinoless double beta decay is a very active field in which the number of proposals for next-generation experiments has proliferated. In this paper we attempt to…

hep-ex2026

Radon-induced backgrounds in the NEXT-100 experiment

NEXT Collaboration, C. Cortes-Parra, P. Novella +111

The NEXT-100 detector at the LSC aims at the first competitive search for the \bbnonu decay using a high-pressure \Xe{136} electroluminescent time projection chamber. The first low…

physics.ins-det2015

Radiopurity assessment of the tracking readout for the NEXT double beta decay experiment

S. Cebrián, J. Pérez, I. Bandac +68

The Neutrino Experiment with a Xenon Time-Projection Chamber (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires a severe suppression of p…

physics.ins-det2023

Reflectance and fluorescence characteristics of PTFE coated with TPB at visible, UV, and VUV as a function of thickness

J. Haefner, A. Fahs, J. Ho +100

Polytetrafluoroethylene (PTFE) is an excellent diffuse reflector widely used in light collection systems for particle physics experiments. In noble element systems, it is often coa…

physics.ins-det2017

Secondary scintillation yield of Xenon with sub-percent levels of CO2 additive: efficiently reducing electron diffusion in HPXe optical TPCs for rare-event detection

C. A. O. Henriques, E. D. C. Freitas, C. D. R. Azevedo +67

We have measured the electroluminescence (EL) yield of Xe-CO2 mixtures, with sub-percent CO2 concentrations. We demonstrate that the EL production is still high in these mixtures,…

hep-ex2024

Measurement of Energy Resolution with the NEXT-White Silicon Photomultipliers

T. Contreras, B. Palmeiro, H. Almazán +107

The NEXT-White detector, a high-pressure gaseous xenon time projection chamber, demonstrated the excellence of this technology for future neutrinoless double beta decay searches us…

physics.ins-det2012

In-situ calibration of a PMT inside a scintillation detector by means of primary scintillation detection

NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +75

We have investigated the possibility of calibrating the PMTs of scintillation detectors, using the primary scintillation produced by X-rays to induce single photoelectron response…

physics.ins-det2015

Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atmospheres

Diego Gonzalez-Diaz, V. Alvarez, F. I. G. Borges +80

We report the performance of a 10 atm Xenon/trimethylamine time projection chamber (TPC) for the detection of X-rays (30 keV) and gamma-rays (0.511-1.275 MeV) in conjunction with t…

hep-ex2023

Demonstration of Event Position Reconstruction based on Diffusion in the NEXT-White Detector

J. Haefner, K. E. Navarro, R. Guenette +108

Noble element time projection chambers are a leading technology for rare event detection in physics, such as for dark matter and neutrinoless double beta decay searches. Time proje…

physics.ins-det2016

Sensitivity of NEXT-100 to neutrinoless double beta decay

NEXT Collaboration, J. Martín-Albo, J. Muñoz Vidal +60

NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta () decay of Xe-136. The detector posse…

physics.ins-det2013

Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture

NEXT Collaboration, V. Álvarez, F. Aznar +82

A technical description of NEXT-MM and its commissioning and first performance is reported. Having an active volume of ~35 cm drift 28 cm diameter, it constitutes the larg…

physics.ins-det2013

Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements

V. Alvarez, I. Bandac, A. Bettini +77

The Neutrino Experiment with a Xenon TPC (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires a severe suppression of potential backgrounds…

hep-ph2007

Tests of the Standard Model with Low-Energy Neutrino Beams

V. Antonelli, G. Battistoni, P. Ferrario +1

We discuss the possibility of using future high--intensity low--energy neutrino beams for precision tests of the Standard Model. In particular we consider the determination of the…

physics.ins-det2024

Fluorescence Imaging of Individual Ions and Molecules in Pressurized Noble Gases for Barium Tagging in Xe

NEXT Collaboration, N. Byrnes, E. Dey +112

The imaging of individual Ba ions in high pressure xenon gas is one possible way to attain background-free sensitivity to neutrinoless double beta decay and hence establish…

hep-ex2022

Ba ion trapping by organic submonolayer: towards an ultra-low background neutrinoless double beta decay detector

P. Herrero-Gómez, J. P. Calupitan, M. Ilyn +112

If neutrinos are their own antiparticles, the otherwise-forbidden nuclear reaction known as neutrinoless double beta decay () can occur, with a characteristic lifetime whi…

physics.ins-det2013

Ionization and scintillation response of high-pressure xenon gas to alpha particles

NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +70

High-pressure xenon gas is an attractive detection medium for a variety of applications in fundamental and applied physics. In this paper we study the ionization and scintillation…

nucl-ex2023

Demonstration of neutrinoless double beta decay searches in gaseous xenon with NEXT

NEXT Collaboration, P. Novella, M. Sorel +112

The NEXT experiment aims at the sensitive search of the neutrinoless double beta decay in Xe, using high-pressure gas electroluminescent time projection chambers. The NEXT-…

physics.ins-det2019

Low-diffusion Xe-He gas mixtures for rare-event detection: Electroluminescence Yield

A. F. M. Fernandes, C. A. O. Henriques, R. D. P. Mano +88

High pressure xenon Time Projection Chambers (TPC) based on secondary scintillation (electroluminescence) signal amplification are being proposed for rare event detection such as d…

physics.ins-det2017

Radiopurity assessment of the energy readout for the NEXT double beta decay experiment

S. Cebrián, J. Pérez, I. Bandac +67

The Neutrino Experiment with a Xenon Time-Projection Chamber (NEXT) experiment intends to investigate the neutrinoless double beta decay of 136Xe, and therefore requires a severe s…

physics.ins-det2026

Demonstration of Sub-Percent Energy Resolution in the NEXT-100 Detector

NEXT Collaboration, M. Pérez Maneiro, M. Martínez-Vara +111

NEXT-100 is a high-pressure xenon time projection chamber with electroluminescent amplification, designed to operate with up to approximately 70.5 kg at 13.5 bar. It is the most re…

physics.ins-det2018

Calibration of the NEXT-White detector using decays

G. Martínez-Lema, J. A. Hernando Morata, B. Palmeiro +74

The NEXT-White (NEW) detector is currently the largest radio-pure high-pressure xenon gas time projection chamber with electroluminescent readout in the world. NEXT-White has been…

physics.ins-det2015

An improved measurement of electron-ion recombination in high-pressure xenon gas

NEXT Collaboration, L. Serra, M. Sorel +64

We report on results obtained with the NEXT-DEMO prototype of the NEXT-100 high-pressure xenon gas time projection chamber (TPC), exposed to an alpha decay calibration source. Comp…

physics.ins-det2026

Measurement of the scintillation resolution in liquid xenon and its impact for future segmented calorimeters

C. Romo-Luque, N. Salor-Iguiñiz, J. M. Benlloch-Rodríguez +16

We report on a new measurement of the energy resolution that can be attained in liquid xenon when recording only the scintillation light. Our setup is optimized to maximize light c…

physics.ins-det2012

SiPMs coated with TPB : coating protocol and characterization for NEXT

V. Álvarez, J. Agramunt, M. Ball +91

Silicon photomultipliers (SiPM) are the photon detectors chosen for the tracking readout in NEXT, a neutrinoless ββ decay experiment which uses a high pressure gaseous xenon time…

physics.ins-det2018

Electron drift properties in high pressure gaseous xenon

NEXT Collaboration, A. Simón, R. Felkai +73

Gaseous time projection chambers (TPC) are a very attractive detector technology for particle tracking. Characterization of both drift velocity and diffusion is of great importance…

physics.ins-det2021

Sensitivity of a tonne-scale NEXT detector for neutrinoless double beta decay searches

NEXT Collaboration, C. Adams, V. Álvarez +96

The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta decay of Xe-136 using high-pressure xenon gas TPCs with electroluminescent amplification.…

physics.ins-det2014

Results of the material screening program of the NEXT experiment

T. Dafni, V. Alvarez, I. Bandac +67

The 'Neutrino Experiment with a Xenon TPC (NEXT)', intended to investigate neutrinoless double beta decay, requires extremely low background levels. An extensive material screening…

physics.ins-det2019

Energy calibration of the NEXT-White detector with 1% resolution near Q of Xe

J. Renner, G. Díaz López, P. Ferrario +87

Excellent energy resolution is one of the primary advantages of electroluminescent high pressure xenon TPCs, and searches for rare physics events such as neutrinoless double-beta d…

physics.ins-det2016

Background rejection in NEXT using deep neural networks

NEXT Collaboration, J. Renner, A. Farbin +64

We investigate the potential of using deep learning techniques to reject background events in searches for neutrinoless double beta decay with high pressure xenon time projection c…

physics.ins-det2025

Evaluation of Coincidence Time Resolution in a liquid xenon detector with silicon photomultipliers

N. Salor-Iguiñiz, J. M. Benlloch-Rodríguez, R. Esteve +16

This work explores the combination of liquid xenon as a scintillating medium and silicon photomultipliers as a readout in Positron Emission Tomography (PET) for enhanced Time-Of-Fl…

hep-ex2025

Reconstructing neutrinoless double beta decay event kinematics in a xenon gas detector with vertex tagging

NEXT Collaboration, M. Martínez-Vara, K. Mistry +108

If neutrinoless double beta decay is discovered, the next natural step would be understanding the lepton number violating physics responsible for it. Several alternatives exist bey…

physics.ins-det2014

Ionization and scintillation of nuclear recoils in gaseous xenon

J. Renner, V. M. Gehman, A. Goldschmidt +75

Ionization and scintillation produced by nuclear recoils in gaseous xenon at approximately 14 bar have been simultaneously observed in an electroluminescent time projection chamber…

physics.ins-det2013

Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment

NEXT Collaboration, V. Álvarez, M. Ball +86

NEXT-100 experiment aims at searching the neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon, with 90% isotopic en…

physics.ins-det2020

Processing of Compton events in the PETALO readout system

J. Renner, J. M. Benlloch-Rodríguez, J. V. Carrión +6

PETALO (Positron Emission TOF Apparatus based on Liquid xenOn) exploits the unique characteristics of liquid xenon as a scintillator for use in a PET detector. Here initial simulat…

physics.ins-det2018

Measurement of radon-induced backgrounds in the NEXT double beta decay experiment

NEXT Collaboration, P. Novella, B. Palmeiro +79

The measurement of the internal Rn activity in the NEXT-White detector during the so-called Run-II period with Xe-depleted xenon is discussed in detail, together wi…

physics.ins-det2017

Microscopic simulation of xenon-based optical TPCs in the presence of molecular additives

C. D. R. Azevedo, D. Gonzalez-Diaz, S. F. Biagi +67

We introduce a simulation framework for the transport of high and low energy electrons in xenon-based gaseous optical time projection chambers (OTPCs). The simulation relies on ele…

physics.ins-det2018

Initial results on energy resolution of the NEXT-White detector

J. Renner, P. Ferrario, G. Martínez-Lema +77

One of the major goals of the NEXT-White (NEW) detector is to demonstrate the energy resolution that an electroluminescent high pressure xenon TPC can achieve for high energy track…

physics.ins-det2015

Radon and material radiopurity assessment for the NEXT double beta decay experiment

S. Cebrián, J. Pérez, I. Bandac +67

The Neutrino Experiment with a Xenon TPC (NEXT), intended to investigate the neutrinoless double beta decay using a high-pressure xenon gas TPC filled with Xe enriched in 136Xe at…

physics.ins-det2012

NEXT-100 Technical Design Report (TDR). Executive Summary

NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +84

In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay (bbonu) in Xe-136 at the Laboratorio Subterraneo de Canf…

physics.ins-det2023

NEXT-CRAB-0: A High Pressure Gaseous Xenon Time Projection Chamber with a Direct VUV Camera Based Readout

NEXT Collaboration, N. K. Byrnes, I. Parmaksiz +116

The search for neutrinoless double beta decay () remains one of the most compelling experimental avenues for the discovery in the neutrino sector. Electroluminescent gas-p…

astro-ph.IM2021

Supernova Model Discrimination with Hyper-Kamiokande

Kamiokande Collaboration, K. Abe, P. Adrich +499

Core-collapse supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants…

physics.ins-det2026

Detection of scintillation light in noble gases with wavelength-shifting optical fibers

S. R. Soleti, S. Torelli, G. Martínez-Lema +110

Wavelength-shifting (WLS) techniques enable particle detectors based on noble gases, whose scintillation light is predominantly emitted in the vacuum-ultraviolet. We investigate WL…

physics.ins-det2013

Characterization of a medium size Xe/TMA TPC instrumented with microbulk Micromegas, using low-energy -rays

The NEXT collaboration, V. Alvarez, F. I. G. M. Borges +87

NEXT-MM is a general-purpose high pressure (10 bar, l active volume) Xenon-based TPC, read out in charge mode with an 8 cm 8 cm-segmented 700 cm plane (1152 ch…

physics.ins-det2013

Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array

The NEXT Collaboration, V. Álvarez, F. I. G. Borges +75

NEXT-DEMO is a high-pressure xenon gas TPC which acts as a technological test-bed and demonstrator for the NEXT-100 neutrinoless double beta decay experiment. In its current config…

physics.ins-det2025

High Voltage Delivery and Distribution for the NEXT-100 Time Projection Chamber

NEXT Collaboration, C. Adams, H. Almazán +105

A critical element in the realization of large liquid and gas time projection chambers (TPCs) is the delivery and distribution of high voltages into and around the detector. Such e…

physics.ins-det2025

The NEXT-100 Detector

NEXT Collaboration, C. Adams, H. Almazán +114

The NEXT collaboration is dedicated to the study of double beta decays of Xe using a high-pressure gas electroluminescent time projection chamber. This advanced technology…

physics.ins-det2023

A Compact Dication Source for Ba Tagging and Heavy Metal Ion Sensor Development

K. E. Navarro, B. J. P. Jones, J. Baeza-Rubio +107

We present a tunable metal ion beam that delivers controllable ion currents in the picoamp range for testing of dry-phase ion sensors. Ion beams are formed by sequential atomic eva…

physics.ins-det2022

Neutral Bremsstrahlung emission in xenon unveiled

C. A. O. Henriques, P. Amedo, J. M. R. Teixeira +90

We present evidence of non-excimer-based secondary scintillation in gaseous xenon, obtained using both the NEXT-White TPC and a dedicated setup. Detailed comparison with first-prin…

physics.ins-det2013

Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment

NEXT Collaboration, V. Álvarez, F. I. G. M. Borges +75

NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for the neutrinoless double beta decay of Xe-136 using…

physics.ins-det2018

Electroluminescence TPCs at the thermal diffusion limit

C. A. O. Henriques, C. M. B. Monteiro, D. González-Díaz +78

The NEXT experiment aims at searching for the hypothetical neutrinoless double-beta decay from the Xe isotope using a high-purity xenon TPC. Efficient discrimination of t…

physics.ins-det2021

The Dynamics of Ions on Phased Radio-frequency Carpets in High Pressure Gases and Application for Barium Tagging in Xenon Gas Time Projection Chambers

NEXT Collaboration, B. J. P. Jones, A. Raymond +107

Radio-frequency (RF) carpets with ultra-fine pitches are examined for ion transport in gases at atmospheric pressures and above. We develop new analytic and computational methods f…

physics.ins-det2020

Mitigation of Backgrounds from Cosmogenic Xe in Xenon Gas Experiments using He Neutron Capture

L. Rogers, B. J. P. Jones, A. Laing +89

\Xe{136} is used as the target medium for many experiments searching for \bbnonu. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutr…

physics.ins-det2018

The Next White (NEW) detector

F. Monrabal, J. J. Gómez-Cadenas, J. F. Toledo +72

Conceived to host 5 kg of xenon at a pressure of 15 bar in the fiducial volume, the NEXT- White (NEW) apparatus is currently the largest high pressure xenon gas TPC using electrolu…

physics.ins-det2026

Electroluminescence Yield Measurements in Xenon Gas with the NEXT-DEMO++ Detector

NEXT Collaboration, J. Renner, J. D. Villamil +111

The NEXT-DEMO++ detector, a high-pressure xenon gas time projection chamber serving as a prototype for the NEXT-100 experiment, was used to measure the electroluminescence (EL) yie…

physics.ins-det2019

Electron Drift and Longitudinal Diffusion in High Pressure Xenon-Helium Gas Mixtures

A. D. McDonald, K. Woodruff, B. Al Atoum +83

We report new measurements of the drift velocity and longitudinal diffusion coefficients of electrons in pure xenon gas and in xenon-helium gas mixtures at 1-9 bar and electric fie…

physics.ins-det2018

Study of the loss of Xenon Scintillation in Xenon-Trimethylamine Mixtures

A. M. F. Trindade, J. Escada, A. F. V. Cortez +75

This work investigates the capability of TMA ((CH3)3N) molecules to shift the wavelength of Xe VUV emission (160-188 nm) to a longer, more manageable, wavelength (260-350 nm). Ligh…

physics.ins-det2020

Coherent Elastic Neutrino-Nucleus Scattering at the European Spallation Source

D. Baxter, J. I. Collar, P. Coloma +12

The European Spallation Source (ESS), presently well on its way to completion, will soon provide the most intense neutron beams for multi-disciplinary science. Fortuitously, it wil…

nucl-ex2022

Measurement of the Xe two-neutrino double beta decay half-life via direct background subtraction in NEXT

NEXT Collaboration, P. Novella, M. Sorel +107

We report a measurement of the half-life of the Xe two-neutrino double beta decay performed with a novel direct background subtraction technique. The analysis relies on t…