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Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches. / Buzulutskov, A.; Frolov, E.; Borisova, E. et al.

In: European Physical Journal C, Vol. 83, No. 10, 899, 10.2023.

Research output: Contribution to journal › Article › peer-review

Harvard

Buzulutskov, A, Frolov, E, Borisova, E, Nosov, V, Oleynikov, V & Sokolov, A 2023, 'Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches', European Physical Journal C, vol. 83, no. 10, 899. https://doi.org/10.1140/epjc/s10052-023-12088-4

APA

Buzulutskov, A., Frolov, E., Borisova, E., Nosov, V., Oleynikov, V., & Sokolov, A. (2023). Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches. European Physical Journal C, 83(10), [899]. https://doi.org/10.1140/epjc/s10052-023-12088-4

Vancouver

Buzulutskov A, Frolov E, Borisova E, Nosov V, Oleynikov V, Sokolov A. Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches. European Physical Journal C. 2023 Oct;83(10):899. doi: 10.1140/epjc/s10052-023-12088-4

Author

Buzulutskov, A. ; Frolov, E. ; Borisova, E. et al. / Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches. In: European Physical Journal C. 2023 ; Vol. 83, No. 10.

BibTeX

@article{9de8d3390fea441f9e904b43e625f884,
title = "Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches",
abstract = "Our recent studies of electroluminescence (EL) properties in two-phase argon detectors for dark matter searches have revealed the presence of unusual delayed pulses in the EL signal in the form of two slow components with time constants of about 5 and 50 μ s . These components were shown to be present in the charge signal itself, which clearly indicates that drifting electrons are temporarily trapped on two states of metastable negative argon ions which have never been observed before. In this work, using the pressure dependence of the ratio of slow component contributions measured in experiment, it is deduced that these states are those of two types of metastable negative molecular ions, Ar2∗-(b4Σu-) and Ar2∗-(a4Σg+) for the higher and lower energy level respectively.",
author = "A. Buzulutskov and E. Frolov and E. Borisova and V. Nosov and V. Oleynikov and A. Sokolov",
note = "This work was supported in part by Russian Science Foundation (Project no. 20-12-00008, https://rscf.ru/project/20-12-00008/ ).",
year = "2023",
month = oct,
doi = "10.1140/epjc/s10052-023-12088-4",
language = "English",
volume = "83",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer Nature",
number = "10",

}

RIS

TY - JOUR

T1 - Possible evidence for the production of Ar 2∗- metastable negative molecular ions in gaseous argon of two-phase detectors for dark matter searches

AU - Buzulutskov, A.

AU - Frolov, E.

AU - Borisova, E.

AU - Nosov, V.

AU - Oleynikov, V.

AU - Sokolov, A.

N1 - This work was supported in part by Russian Science Foundation (Project no. 20-12-00008, https://rscf.ru/project/20-12-00008/ ).

PY - 2023/10

Y1 - 2023/10

N2 - Our recent studies of electroluminescence (EL) properties in two-phase argon detectors for dark matter searches have revealed the presence of unusual delayed pulses in the EL signal in the form of two slow components with time constants of about 5 and 50 μ s . These components were shown to be present in the charge signal itself, which clearly indicates that drifting electrons are temporarily trapped on two states of metastable negative argon ions which have never been observed before. In this work, using the pressure dependence of the ratio of slow component contributions measured in experiment, it is deduced that these states are those of two types of metastable negative molecular ions, Ar2∗-(b4Σu-) and Ar2∗-(a4Σg+) for the higher and lower energy level respectively.

AB - Our recent studies of electroluminescence (EL) properties in two-phase argon detectors for dark matter searches have revealed the presence of unusual delayed pulses in the EL signal in the form of two slow components with time constants of about 5 and 50 μ s . These components were shown to be present in the charge signal itself, which clearly indicates that drifting electrons are temporarily trapped on two states of metastable negative argon ions which have never been observed before. In this work, using the pressure dependence of the ratio of slow component contributions measured in experiment, it is deduced that these states are those of two types of metastable negative molecular ions, Ar2∗-(b4Σu-) and Ar2∗-(a4Σg+) for the higher and lower energy level respectively.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85173556819&origin=inward&txGid=f9031899d028d42778f70ecf10dc00b9

UR - https://www.mendeley.com/catalogue/c63299b6-2ede-383c-b2e2-f40c764eec27/

U2 - 10.1140/epjc/s10052-023-12088-4

DO - 10.1140/epjc/s10052-023-12088-4

M3 - Article

VL - 83

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 10

M1 - 899

ER -

ID: 59281272