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Browsing by Author "Adams, C."

Now showing items 1-11 of 11

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

Kekic, M.; Adams, C.; Woodruff, K.; Renner, J.; Church, E.; Del Tutto, M.; Hernando Morata, J. A.; Gomez-Cadenas, J. J.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodriguez, J. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2021-01-28)

[EN] 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 to understand the potential of CNNs ...
Demonstration of Single-Barium-Ion Sensitivity for Neutrinoless Double-Beta Decay Using Single-Molecule Fluorescence Imaging

McDonald, A.D.; Jones, B.J.P.; Nygren, D.R.; Adams, C.; Álvarez-Puerta, Vicente; Azevedo, C.D.R.; Benlloch-Rodríguez, J.M.; Borges, F.I.G.M.; Botas, A.; Cárcel García, Sara; Carrión Burguete, José Vicente; Cebrian, S.; Conde, C.A.N.; Diaz, J.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Toledo Alarcón, José Francisco (American Physical Society, 2018-03-26)

[EN] A new method to tag the barium daughter in the double-beta decay of Xe-136 is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba++) resolution at a transparent ...
Demonstration of the event identification capabilities of the NEXT-White detector

Ferrario, Paola; Benlloch-Rodríguez, J.M.; Díaz López, G.; Hernando Morata, J.A.; Kekic, M.; Renner, J.; Usón, A.; Gómez-Cadenas, J.J.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C.D.R.; Bailey, K.; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2019-10-04)

[EN] 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 therefore improving the overall sensitivity ...
Dependence of polytetrafluoroethylene reflectance on thickness at visible and ultraviolet wavelengths in air

Ghosh, S.; Haefner, J.; Martín-Albo, J.; Guenette, R.; Li, X.; Loya Villalpando, A.A.; Burch, C.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C.D.R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodríguez, J.M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2020-11-23)

[EN] Polytetrafluoroethylene (PTFE) is an excellent diffuse reflector widely used in light collection systems for particle physics experiments. However, the reflectance of PTFE is a function of its thickness. In this work, ...
Electron drift properties in high pressure gaseous xenon

Simon, A.; Felkai, R.; Martinez-Lema, G.; Monrabal, F.; Gonzalez-Diaz, D.; Sorel, M.; Hernando Morata, J. A.; Gomez-Cadenas, J. J.; Adams, C.; Álvarez-Puerta, Vicente; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Toledo Alarcón, José Francisco (IOP Publishing, 2018-07)

[EN] Gaseous time projection chambers (TPC) are a very attractive detector technology for particle tracking. Characterization of both drift velocity and di¿usion is of great importance to correctly assess their tracking ...
Low-diffusion Xe-He gas mixtures for rare-event detection: electroluminescence yield

Fernandes, A.F.M.; Henriques, C.A.O.; Mano, R.D.P.; González-Díaz, D.; Azevedo, C.D.R.; Silva, P.A.O.C.; Gómez-Cadenas, J.J.; Freitas, E.D.C.; Fernandes, L.M.P.; Monteiro, C.M.B.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Bailey, K.; Ballester Merelo, Francisco José; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2020-04-06)

[EN] High pressure xenon Time Projection Chambers (TPC) based on secondary scintillation (electroluminescence) signal amplification are being proposed for rare event detection such as directional dark matter, double electron ...
Mitigation of backgrounds from cosmogenic Xe-137 in xenon gas experiments using He-3 neutron capture

Rogers, L.; Jones, B. J. P.; Laing, A.; Pingulkar, S.; Smithers, B.; Woodruff, K.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I. J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodríguez, J. M.; Borges, F. I. G. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2020-07)

[EN] Xe-136 is used as the target medium for many experiments searching for 0 nu beta beta. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector ...
Multi-messenger Observations of a Binary Neutron Star Merger

Abbot, B. P.; Abbot, R.; Abbot, T. D.; Acernnese, F.; Ackley, K.; Adams, C.; Adams, T.; Addeso, P.; Adhikari, R. X.; Adya, V. B.; Affeldt, C.; Afrough, M.; Agarwal, B.; Agathos, M.; Agatsuma, K.; Ardid Ramírez, Miguel; Felis-Enguix, Iván; Martínez Mora, Juan Antonio; Saldaña-Coscollar, María (American Astronomical Society, 2017)

[EN] On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The ...
Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and Xenon

Woodruff, K.; Baeza-Rubio, J.; Huerta, D.; Jones, B. J. P.; McDonald, A. D.; Norman, L.; Nygren, D. R.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I. J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodriguez, J. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (IOP Publishing, 2020-04)

[EN] 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 to test radio frequency (RF) carpets ...
Radiogenic backgrounds in the NEXT double beta decay experiment

Novella, P.; Palmeiro, B.; Sorel, M.; Usón, A.; Ferrario, P.; Gómez-Cadenas, J. J.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C.D.R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodríguez, J. M.; Borges, F. I. G. M.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2019-10-04)

[EN] Natural radioactivity represents one of the main backgrounds in the search for neutrinoless double beta decay. Within the NEXT physics program, the radioactivity- induced backgrounds are measured with the NEXT-White ...
Sensitivity of the NEXT experiment to 124-Xe double electron capture

Martinez-Lema, G.; Martinez-Vara, M.; Sorel, M.; Adams, C.; Álvarez-Puerta, Vicente; Arazi, L.; Arnquist, I.J.; Azevedo, C. D. R.; Bailey, K.; Ballester Merelo, Francisco José; Benlloch-Rodriguez, J. M.; Borges, F. I. G. M.; Byrnes, N.; Carcel, S.; Carrión, J. V.; Esteve Bosch, Raul; Herrero Bosch, Vicente; Mora Mas, Francisco José; Rodriguez-Samaniego, Javier; Toledo Alarcón, José Francisco (Springer-Verlag, 2021-02-24)

[EN] 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 di erent, potentially providing a new channel ...