Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by their observed pulse shape and large energy depositions. The measured muon rate in DM-Ice17 is 2.93...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
arXiv
2015
|
Subjects: | |
Online Access: | https://dx.doi.org/10.48550/arxiv.1509.02486 https://arxiv.org/abs/1509.02486 |
id |
ftdatacite:10.48550/arxiv.1509.02486 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.48550/arxiv.1509.02486 2023-05-15T18:22:39+02:00 Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 Ice Collaboration Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J. C. Telfer, S. Yang, L. 2015 https://dx.doi.org/10.48550/arxiv.1509.02486 https://arxiv.org/abs/1509.02486 unknown arXiv https://dx.doi.org/10.1103/physrevd.93.042001 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Detectors physics.ins-det Cosmology and Nongalactic Astrophysics astro-ph.CO Instrumentation and Methods for Astrophysics astro-ph.IM High Energy Physics - Experiment hep-ex FOS Physical sciences article-journal Article ScholarlyArticle Text 2015 ftdatacite https://doi.org/10.48550/arxiv.1509.02486 https://doi.org/10.1103/physrevd.93.042001 2022-04-01T12:02:10Z We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by their observed pulse shape and large energy depositions. The measured muon rate in DM-Ice17 is 2.93 +/- 0.04 muons/crystal/day with a modulation amplitude of 12.3 +/- 1.7%, consistent with expectation. Following muon interactions, we observe long-lived phosphorescence in the NaI(Tl) crystals with a decay time of 5.5 +/- 0.5 s. The prompt energy deposited by a muon is correlated to the amount of delayed phosphorescence, the brightest of which consist of tens of millions of photons. These photons are distributed over tens of seconds with a rate and arrival timing that do not mimic a scintillation signal above 2 keVee. While the properties of phosphorescence vary among individual crystals, the annually-modulating signal observed by DAMA cannot be accounted for by phosphorescence with the characteristics observed in DM-Ice17. : 9 pages, 8 figures Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Instrumentation and Detectors physics.ins-det Cosmology and Nongalactic Astrophysics astro-ph.CO Instrumentation and Methods for Astrophysics astro-ph.IM High Energy Physics - Experiment hep-ex FOS Physical sciences |
spellingShingle |
Instrumentation and Detectors physics.ins-det Cosmology and Nongalactic Astrophysics astro-ph.CO Instrumentation and Methods for Astrophysics astro-ph.IM High Energy Physics - Experiment hep-ex FOS Physical sciences Ice Collaboration Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J. C. Telfer, S. Yang, L. Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 |
topic_facet |
Instrumentation and Detectors physics.ins-det Cosmology and Nongalactic Astrophysics astro-ph.CO Instrumentation and Methods for Astrophysics astro-ph.IM High Energy Physics - Experiment hep-ex FOS Physical sciences |
description |
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by their observed pulse shape and large energy depositions. The measured muon rate in DM-Ice17 is 2.93 +/- 0.04 muons/crystal/day with a modulation amplitude of 12.3 +/- 1.7%, consistent with expectation. Following muon interactions, we observe long-lived phosphorescence in the NaI(Tl) crystals with a decay time of 5.5 +/- 0.5 s. The prompt energy deposited by a muon is correlated to the amount of delayed phosphorescence, the brightest of which consist of tens of millions of photons. These photons are distributed over tens of seconds with a rate and arrival timing that do not mimic a scintillation signal above 2 keVee. While the properties of phosphorescence vary among individual crystals, the annually-modulating signal observed by DAMA cannot be accounted for by phosphorescence with the characteristics observed in DM-Ice17. : 9 pages, 8 figures |
format |
Text |
author |
Ice Collaboration Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J. C. Telfer, S. Yang, L. |
author_facet |
Ice Collaboration Cherwinka, J. Grant, D. Halzen, F. Heeger, K. M. Hsu, L. Hubbard, A. J. F. Karle, A. Kauer, M. Kudryavtsev, V. A. Lim, K. E. Macdonald, C. Maruyama, R. H. Paling, S. Pettus, W. Pierpoint, Z. P. Reilly, B. N. Robinson, M. Sandstrom, P. Spooner, N. J. C. Telfer, S. Yang, L. |
author_sort |
Ice Collaboration |
title |
Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 |
title_short |
Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 |
title_full |
Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 |
title_fullStr |
Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 |
title_full_unstemmed |
Measurement of Muon Annual Modulation and Muon-Induced Phosphorescence in NaI(Tl) Crystals with DM-Ice17 |
title_sort |
measurement of muon annual modulation and muon-induced phosphorescence in nai(tl) crystals with dm-ice17 |
publisher |
arXiv |
publishDate |
2015 |
url |
https://dx.doi.org/10.48550/arxiv.1509.02486 https://arxiv.org/abs/1509.02486 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1103/physrevd.93.042001 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1509.02486 https://doi.org/10.1103/physrevd.93.042001 |
_version_ |
1766202065100472320 |