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Quenching Factor consistency across several NaI(Tl) crystals

Publication ,  Conference
Cintas, D; An, P; Awe, C; Barbeau, PS; Barbosa de Souza, E; Hedges, S; Jo, JH; Martínez, M; Maruyama, RH; Li, L; Rich, GC; Runge, J ...
Published in: Journal of Physics: Conference Series
February 21, 2022

Testing the DAMA/LIBRA annual modulation result independently of dark matter particle and halo models has been a challenge for twenty years. Using the same target material, NaI(Tl), is required and presently two experiments, ANAIS-112 and COSINE-100, are running for such a goal. A precise knowledge of the detector response to nuclear recoils is mandatory because this is the most likely channel to find the dark matter signal. The light produced by nuclear recoils is quenched with respect to that produced by electrons by a factor that has to be measured experimentally. However, current quenching factor measurements in NaI(Tl) crystals disagree within the energy region of interest for dark matter searches. To disentangle whether this discrepancy is due to intrinsic differences in the light response among different NaI(Tl) crystals, or has its origin in unaccounted for systematic effects will be key in the comparison among the different experiments. We present measurements of the quenching factors for five small NaI(Tl) crystals performed in the same experimental setup to control systematics. Quenching factor results are compatible between crystals and no clear dependence with energy is observed from 10 to 80 keVnr.

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Published In

Journal of Physics: Conference Series

DOI

EISSN

1742-6596

ISSN

1742-6588

Publication Date

February 21, 2022

Volume

2156

Issue

1

Related Subject Headings

  • 51 Physical sciences
  • 0299 Other Physical Sciences
  • 0204 Condensed Matter Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

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Cintas, D., An, P., Awe, C., Barbeau, P. S., Barbosa de Souza, E., Hedges, S., … Thompson, W. G. (2022). Quenching Factor consistency across several NaI(Tl) crystals. In Journal of Physics: Conference Series (Vol. 2156). https://doi.org/10.1088/1742-6596/2156/1/012065
Cintas, D., P. An, C. Awe, P. S. Barbeau, E. Barbosa de Souza, S. Hedges, J. H. Jo, et al. “Quenching Factor consistency across several NaI(Tl) crystals.” In Journal of Physics: Conference Series, Vol. 2156, 2022. https://doi.org/10.1088/1742-6596/2156/1/012065.
Cintas D, An P, Awe C, Barbeau PS, Barbosa de Souza E, Hedges S, et al. Quenching Factor consistency across several NaI(Tl) crystals. In: Journal of Physics: Conference Series. 2022.
Cintas, D., et al. “Quenching Factor consistency across several NaI(Tl) crystals.” Journal of Physics: Conference Series, vol. 2156, no. 1, 2022. Scopus, doi:10.1088/1742-6596/2156/1/012065.
Cintas D, An P, Awe C, Barbeau PS, Barbosa de Souza E, Hedges S, Jo JH, Martínez M, Maruyama RH, Li L, Rich GC, Runge J, Sarsa ML, Thompson WG. Quenching Factor consistency across several NaI(Tl) crystals. Journal of Physics: Conference Series. 2022.
Journal cover image

Published In

Journal of Physics: Conference Series

DOI

EISSN

1742-6596

ISSN

1742-6588

Publication Date

February 21, 2022

Volume

2156

Issue

1

Related Subject Headings

  • 51 Physical sciences
  • 0299 Other Physical Sciences
  • 0204 Condensed Matter Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics