| Title: |
Measurements and models of enhanced recombination following inner-shell vacancies in liquid xenon |
| Authors: |
Aalbers, J; Akerib, DS; Al Musalhi, AK; Alder, F; Amarasinghe, CS; Ames, A; Anderson, TJ; Angelides, N; Araújo, HM; Armstrong, JE; Arthurs, M; Baker, A; Balashov, S; Bang, J; Bargemann, JW; Barillier, EE; Beattie, K; Benson, T; Bhatti, A; Biekert, A; Biesiadzinski, TP; Birch, HJ; Bishop, E; Blockinger, GM; Boxer, B; Brew, CAJ; Brás, P; Burdin, S; Buuck, M; Carmona-Benitez, MC; Carter, M; Chawla, A; Chen, H; Cherwinka, JJ; Chin, YT; Chott, NI; Converse, MV; Coronel, R; Cottle, A; Cox, G; Curran, D; Dahl, CE; Darlington, I; Dave, S; David, A; Delgaudio, J; Dey, S; de Viveiros, L; Di Felice, L; Ding, C; Dobson, JEY; Druszkiewicz, E; Dubey, S; Eriksen, SR; Fan, A; Fearon, NM; Fieldhouse, N; Fiorucci, S; Flaecher, H; Fraser, ED; Fruth, TMA; Gaitskell, RJ; Geffre, A; Genovesi, J; Ghag, C; Gibbons, R; Gokhale, S; Green, J; van der Grinten, MGD; Haiston, JJ; Hall, CR; Hall, T; Han, S; Hartigan-O’Connor, E; Haselschwardt, SJ; Hernandez, MA; Hertel, SA; Heuermann, G; Homenides, GJ; Horn, M; Huang, DQ; Hunt, D; Jacquet, E; James, RS; Kannichankandy, MK; Kaboth, AC; Kamaha, AC; Khaitan, D; Khazov, A; Kim, J; Kim, YD; Kingston, J; Kirk, R; Kodroff, D; Korley, L; Korolkova, EV; Kraus, H; Kravitz, S; Kreczko, L; Kudryavtsev, VA |
| Source: |
Physical Review D, vol 112, iss 1 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2025 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5106 Nuclear and Plasma Physics (for-2020); 51 Physical Sciences (for-2020) |
| Description: |
Electron-capture decays of and , and double-electron-capture decays of , are backgrounds in searches for weakly interacting massive particles (WIMPs) conducted by dual-phase xenon time projection chambers such as LUX-ZEPLIN (LZ). These decays produce signals with more light and less charge than equivalent-energy decays and correspondingly overlap more with WIMP signals. We measure three electron-capture charge yields in LZ: the 1.1keV M-shell, 5.2keV L-shell, and 33.2keV K-shell at drift fields of 193 and . The LL double-electron-capture decay of exhibits even more pronounced shifts in charge and light. We provide a first model of double-electron-capture charge yields using the link between ionization density and electron-ion recombination, and identify a need for more accurate calculations. Finally, we discuss the implications of the reduced charge yield of these decays and other interactions creating inner-shell vacancies for future dark matter searches. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt2w16r2xw; https://escholarship.org/uc/item/2w16r2xw; https://escholarship.org/content/qt2w16r2xw/qt2w16r2xw.pdf |
| DOI: |
10.1103/447w-94h3 |
| Availability: |
https://escholarship.org/uc/item/2w16r2xw; https://escholarship.org/content/qt2w16r2xw/qt2w16r2xw.pdf; https://doi.org/10.1103/447w-94h3 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.E2C80BE0 |
| Database: |
BASE |