Measurements of the ionization efficiency of protons in methane

Autor: L. Balogh, C. Beaufort, A. Brossard, J.-F. Caron, M. Chapellier, J.-M. Coquillat, E. C. Corcoran, S. Crawford, A. Dastgheibi-Fard, Y. Deng, K. Dering, D. Durnford, C. Garrah, G. Gerbier, I. Giomataris, G. Giroux, P. Gorel, M. Gros, P. Gros, O. Guillaudin, E. W. Hoppe, I. Katsioulas, F. Kelly, P. Knights, S. Langrock, P. Lautridou, I. Manthos, R. D. Martin, J. Matthews, J.-P. Mols, J.-F. Muraz, T. Neep, K. Nikolopoulos, P. O’Brien, M.-C. Piro, D. Santos, G. Savvidis, I. Savvidis, F. A. Vazquez de Sola Fernandez, M. Vidal, R. Ward, M. Zampaolo, NEWS-G Collaboration

Publikováno v: European Physical Journal C: Particles and Fields, Vol 82, Iss 12, Pp 1-10 (2022)

Abstract The amount of energy released by a nuclear recoil ionizing the atoms of the active volume of detection appears “quenched” compared to an electron of the same kinetic energy. This different behavior in ionization between electrons and nuc

Externí odkaz: https://doaj.org/article/210f1162a24447f6b7eb484def335cfc

Search for chameleons with CAST

Autor: V. Anastassopoulos, M. Arik, S. Aune, K. Barth, A. Belov, H. Bräuninger, G. Cantatore, J.M. Carmona, S.A. Cetin, F. Christensen, J.I. Collar, T. Dafni, M. Davenport, K. Desch, A. Dermenev, C. Eleftheriadis, G. Fanourakis, E. Ferrer-Ribas, P. Friedrich, J. Galán, J.A. García, A. Gardikiotis, J.G. Garza, E.N. Gazis, T. Geralis, I. Giomataris, C. Hailey, F. Haug, M.D. Hasinoff, D.H.H. Hoffmann, F.J. Iguaz, I.G. Irastorza, J. Jacoby, A. Jakobsen, K. Jakovčić, J. Kaminski, M. Karuza, M. Kavuk, M. Krčmar, C. Krieger, A. Krüger, B. Lakić, J.M. Laurent, A. Liolios, A. Ljubičić, G. Luzón, S. Neff, I. Ortega, T. Papaevangelou, M.J. Pivovaroff, G. Raffelt, H. Riege, M. Rosu, J. Ruz, I. Savvidis, S.K. Solanki, T. Vafeiadis, J.A. Villar, J.K. Vogel, S.C. Yildiz, K. Zioutas, P. Brax, I. Lavrentyev, A. Upadhye

Publikováno v: Physics Letters B, Vol 749, Iss C, Pp 172-180 (2015)

In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (βm) and to photons (βγ) vi

Externí odkaz: https://doaj.org/article/1330aaf82dca403b9031ad3e4f688926

Copper electroplating for background suppression in the NEWS-G experiment

Autor: J.-M. Coquillat, P. Knights, M. L. di Vacri, Eric W. Hoppe, I. Katsioulas, M. Zampaolo, S. Alcantar Anguiano, P. Lautridou, Kimbrelle S. Thommasson, Ken-ichiro Kobayashi, Y. Deng, R. P. Ward, A. Brossard, R. D. Martin, F. Kelly, K. Dering, G. Savvidis, D. Durnford, D. Santos, M. Gros, F. Vazquez de Sola Fernandez, S. Crawford, Ioannis Giomataris, M. Chapellier, P. Gros, I. J. Arnquist, M. Vidal, Jean-François Muraz, Konstantinos Nikolopoulos, Khadouja Harouaka, R. Bunker, J.-F. Caron, P. Gorel, O. Guillaudin, E. C. Corcoran, C. Beaufort, R. E. Owen, I. Savvidis, S. Langrock, Levente Balogh, X. F. Navick, L. Kwon, J.-P. Mols, M.-C. Piro, P. O'Brien, G. Gerbier, Thomas James Neep, G. Giroux, A. Dastgheibi Fard

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2021, 988, pp.164844. ⟨10.1016/j.nima.2020.164844⟩
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2021, 988, pp.164844. ⟨10.1016/j.nima.2020.164844⟩

New Experiments with Spheres-Gas (NEWS-G) is a dark matter direct detection experiment that will operate at SNOLAB (Canada). Similar to other rare-event searches, the materials used in the detector construction are subject to stringent radiopurity re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a8bcd574520b90a44806971976e424

First results from the NEWS-G direct dark matter search experiment at the LSM

Autor: D. Santos, Eric W. Hoppe, M. Zampaolo, R. D. Martin, A. Kamaha, T. Dandl, Ioannis Giomataris, M. Gros, F. Vazquez de Sola Fernandez, D. M. Asner, A. Ulrich, Jean-François Muraz, J. M. McDonald, Q. Arnaud, J.-P. Bard, Bei Cai, S. Roth, M. Clark, O. Guillaudin, M. Chapellier, A. Brossard, T. Papaevangelou, D. Durnford, A. Dastgheibi-Fard, G. Gerbier, David G. Kelly, P. Di Stefano, J.-P. Mols, E. C. Corcoran, X. F. Navick, K. Dering, F. Piquemal, I. Katsioulas, I. Savvidis, P. Gorel

Publikováno v: Astropart.Phys.
Astropart.Phys., 2018, 97, pp.54-62. ⟨10.1016/j.astropartphys.2017.10.009⟩
Astroparticle Physics
Astroparticle Physics, 2018, 97, pp.54-62. ⟨10.1016/j.astropartphys.2017.10.009⟩
Astropart.Phys., 2018, 97, pp.54-62. 〈10.1016/j.astropartphys.2017.10.009〉

New Experiments With Spheres-Gas (NEWS-G) is a direct dark matter detection experiment using Spherical Proportional Counters (SPCs) with light noble gases to search for low-mass Weakly Interacting Massive Particles (WIMPs). We report the results from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b01acbbfc566da6ed579b32cdeabee93
https://doi.org/10.1016/j.astropartphys.2017.10.009

Neutron spectroscopy with the Spherical Proportional Counter based on nitrogen gas

Autor: J. Derre, P. Magnier, D. Jourde, M. Gros, E. Bougamont, A. Dastgheibi, G Gerbier, G. Tsiledakis, Javier Galan, Ioannis Giomataris, T. Papaevangelou, I. Savvidis, X-F. Navick, I. Katsioulas

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2017, 847, pp.10-14. ⟨10.1016/j.nima.2016.11.007⟩
Nucl.Instrum.Meth.A
Nucl.Instrum.Meth.A, 2017, 847, pp.10-14. ⟨10.1016/j.nima.2016.11.007⟩
Nucl.Instrum.Meth.A, 2017, 847, pp.10-14. 〈10.1016/j.nima.2016.11.007〉

A novel large volume spherical proportional counter, recently developed, is used for neutron measurements. The pure N2 gas is studied for thermal and fast neutron detection, providing a new way for neutron spectroscopy. The neutrons are detected via

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::444002c415a8b4fd46502efaf317bd3e
https://doi.org/10.1016/j.nima.2016.11.007