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Title: Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment

Abstract

In this work, liquid xenon (LXe) is employed in a number of current and future detectors for rare event searches. We use the EXO-200 experimental data to measure the absolute scintillation and ionization yields generated by γ interactions from 228Th (2615 keV), 226Ra (1764 keV), and 60Co (1332 keV and 1173 keV) calibration sources, over a range of electric fields. The W value that defines the recombination-independent energy scale is measured to be 11.5±0.5 (syst.) ±0.1 (stat.) eV. These data are also used to measure the recombination fluctuations in the number of electrons and photons produced by the calibration sources at the MeV scale, which deviate from extrapolations of lower-energy data. Additionally, a semiempirical model for the energy resolution of the detector is developed, which is used to constrain the recombination efficiency, i.e., the fraction of recombined electrons that result in the emission of a detectable photon. Detailed measurements of the absolute charge and light yields for MeV-scale electron recoils are important for predicting the performance of future neutrinoless double β -decay detectors.

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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
Sponsoring Org.:
USDOE; National Science Foundtaion (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC); Swiss National Science Foundation (SNF); Institute for Basic Science (IBS); Russian Foundation for Basic Research (RFBR); German Research Foundation (DFG); Chinese Academy of Sciences (CAS); International Science and Technology Cooperation Program of China (ISTCP)
Contributing Org.:
EXO-200 Collaboration
OSTI Identifier:
1637652
Alternate Identifier(s):
OSTI ID: 1660464
Grant/Contract Number:  
AC02-76SF00515; SC0017970
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 101; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Neutrinoless double beta decay; Majorana neutrinos; Neutrino detectors; Scintillators; Time-projection chambers

Citation Formats

Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank, W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Neilson, R., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Piepke, A., Pocar, A., Retière, F., Robinson, A. L., Rowson, P. C., Runge, J., Schmidt, S., Sinclair, D., Soma, A. K., Stekhanov, V., Tarka, M., Todd, J., Tolba, T., Tosi, D., Totev, T. I., Veenstra, B., Veeraraghavan, V., Vuilleumier, J.-L., Wagenpfeil, M., Watkins, J., Weber, M., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y.-R., Zeldovich, O. Ya., and Ziegler, T. Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment. United States: N. p., 2020. Web. https://doi.org/10.1103/physrevc.101.065501.
Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank, W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Neilson, R., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Piepke, A., Pocar, A., Retière, F., Robinson, A. L., Rowson, P. C., Runge, J., Schmidt, S., Sinclair, D., Soma, A. K., Stekhanov, V., Tarka, M., Todd, J., Tolba, T., Tosi, D., Totev, T. I., Veenstra, B., Veeraraghavan, V., Vuilleumier, J.-L., Wagenpfeil, M., Watkins, J., Weber, M., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y.-R., Zeldovich, O. Ya., & Ziegler, T. Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment. United States. https://doi.org/10.1103/physrevc.101.065501
Anton, G., Badhrees, I., Barbeau, P. S., Beck, D., Belov, V., Bhatta, T., Breidenbach, M., Brunner, T., Cao, G. F., Cen, W. R., Chambers, C., Cleveland, B., Coon, M., Craycraft, A., Daniels, T., Darroch, L., Daugherty, S. J., Davis, J., Delaquis, S., Der Mesrobian-Kabakian, A., DeVoe, R., Dilling, J., Dolgolenko, A., Dolinski, M. J., Echevers, J., Fairbank, W., Fairbank, D., Farine, J., Feyzbakhsh, S., Fierlinger, P., Fudenberg, D., Gautam, P., Gornea, R., Gratta, G., Hall, C., Hansen, E. V., Hoessl, J., Hufschmidt, P., Hughes, M., Iverson, A., Jamil, A., Jessiman, C., Jewell, M. J., Johnson, A., Karelin, A., Kaufman, L. J., Koffas, T., Krücken, R., Kuchenkov, A., Kumar, K. S., Lan, Y., Larson, A., Lenardo, B. G., Leonard, D. S., Li, G. S., Li, S., Li, Z., Licciardi, C., Lin, Y. H., MacLellan, R., McElroy, T., Michel, T., Mong, B., Moore, D. C., Murray, K., Neilson, R., Njoya, O., Nusair, O., Odian, A., Ostrovskiy, I., Piepke, A., Pocar, A., Retière, F., Robinson, A. L., Rowson, P. C., Runge, J., Schmidt, S., Sinclair, D., Soma, A. K., Stekhanov, V., Tarka, M., Todd, J., Tolba, T., Tosi, D., Totev, T. I., Veenstra, B., Veeraraghavan, V., Vuilleumier, J.-L., Wagenpfeil, M., Watkins, J., Weber, M., Wen, L. J., Wichoski, U., Wrede, G., Wu, S. X., Xia, Q., Yahne, D. R., Yang, L., Yen, Y.-R., Zeldovich, O. Ya., and Ziegler, T. Mon . "Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment". United States. https://doi.org/10.1103/physrevc.101.065501. https://www.osti.gov/servlets/purl/1637652.
@article{osti_1637652,
title = {Measurement of the scintillation and ionization response of liquid xenon at MeV energies in the EXO-200 experiment},
author = {Anton, G. and Badhrees, I. and Barbeau, P. S. and Beck, D. and Belov, V. and Bhatta, T. and Breidenbach, M. and Brunner, T. and Cao, G. F. and Cen, W. R. and Chambers, C. and Cleveland, B. and Coon, M. and Craycraft, A. and Daniels, T. and Darroch, L. and Daugherty, S. J. and Davis, J. and Delaquis, S. and Der Mesrobian-Kabakian, A. and DeVoe, R. and Dilling, J. and Dolgolenko, A. and Dolinski, M. J. and Echevers, J. and Fairbank, W. and Fairbank, D. and Farine, J. and Feyzbakhsh, S. and Fierlinger, P. and Fudenberg, D. and Gautam, P. and Gornea, R. and Gratta, G. and Hall, C. and Hansen, E. V. and Hoessl, J. and Hufschmidt, P. and Hughes, M. and Iverson, A. and Jamil, A. and Jessiman, C. and Jewell, M. J. and Johnson, A. and Karelin, A. and Kaufman, L. J. and Koffas, T. and Krücken, R. and Kuchenkov, A. and Kumar, K. S. and Lan, Y. and Larson, A. and Lenardo, B. G. and Leonard, D. S. and Li, G. S. and Li, S. and Li, Z. and Licciardi, C. and Lin, Y. H. and MacLellan, R. and McElroy, T. and Michel, T. and Mong, B. and Moore, D. C. and Murray, K. and Neilson, R. and Njoya, O. and Nusair, O. and Odian, A. and Ostrovskiy, I. and Piepke, A. and Pocar, A. and Retière, F. and Robinson, A. L. and Rowson, P. C. and Runge, J. and Schmidt, S. and Sinclair, D. and Soma, A. K. and Stekhanov, V. and Tarka, M. and Todd, J. and Tolba, T. and Tosi, D. and Totev, T. I. and Veenstra, B. and Veeraraghavan, V. and Vuilleumier, J.-L. and Wagenpfeil, M. and Watkins, J. and Weber, M. and Wen, L. J. and Wichoski, U. and Wrede, G. and Wu, S. X. and Xia, Q. and Yahne, D. R. and Yang, L. and Yen, Y.-R. and Zeldovich, O. Ya. and Ziegler, T.},
abstractNote = {In this work, liquid xenon (LXe) is employed in a number of current and future detectors for rare event searches. We use the EXO-200 experimental data to measure the absolute scintillation and ionization yields generated by γ interactions from 228Th (2615 keV), 226Ra (1764 keV), and 60Co (1332 keV and 1173 keV) calibration sources, over a range of electric fields. The W value that defines the recombination-independent energy scale is measured to be 11.5±0.5 (syst.) ±0.1 (stat.) eV. These data are also used to measure the recombination fluctuations in the number of electrons and photons produced by the calibration sources at the MeV scale, which deviate from extrapolations of lower-energy data. Additionally, a semiempirical model for the energy resolution of the detector is developed, which is used to constrain the recombination efficiency, i.e., the fraction of recombined electrons that result in the emission of a detectable photon. Detailed measurements of the absolute charge and light yields for MeV-scale electron recoils are important for predicting the performance of future neutrinoless double β -decay detectors.},
doi = {10.1103/physrevc.101.065501},
journal = {Physical Review C},
number = 6,
volume = 101,
place = {United States},
year = {2020},
month = {6}
}

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