Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX
LOREX (LORandite EXperiment) addresses the determination of the solar (pp) neutrino flux during the last four million years by exploiting the reaction 205Tl+νe→ 205Pb+e- with an incomparably low-energy threshold of 50 keV for the capture of solar neutrinos. The ratio of 205Pb/205Tl atoms in the Tl...
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/274614 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832564932750606336 |
|---|---|
| author | M. K. Pavićević F. Bosch G. Amthauer I. Aničin B. Boev W. Brüchle V. Cvetković Z. Djurčić W. F. Henning R. Jelenković V. Pejović A. Weiss |
| author_facet | M. K. Pavićević F. Bosch G. Amthauer I. Aničin B. Boev W. Brüchle V. Cvetković Z. Djurčić W. F. Henning R. Jelenković V. Pejović A. Weiss |
| author_sort | M. K. Pavićević |
| collection | DOAJ |
| description | LOREX (LORandite EXperiment) addresses the determination of the solar (pp) neutrino flux during the last four million years by exploiting the reaction 205Tl+νe→ 205Pb+e- with an incomparably low-energy threshold of 50 keV for the capture of solar neutrinos. The ratio of 205Pb/205Tl atoms in the Tl-bearing mineral lorandite provides, if corrected for the cosmic-ray induced background, the product of the flux of solar neutrinos and their capture probability by 205Tl, averaged over the age of lorandite. To get the mean solar neutrino flux itself, four problems have to be addressed: (1) the geological age of lorandite, (2) the amount of background cosmic-ray-induced 205Pb atoms which strongly depends on the erosion rate of the lorandite-bearing rocks, (3) the capture probability of solar neutrinos by 205Tl and (4) the extraction of lorandite and the appropriate technique to “count” the small number of 205Pb atoms in relation to the number of 205Tl atoms. This paper summarizes the status of items 1 (age) and 3 (neutrino capture probability) and presents in detail the progress achieved most recently concerning the items 2 (background/erosion) and 4 (“counting” of 205Pb atoms in lorandite). |
| format | Article |
| id | doaj-art-06870fcad9dc44d2a943b45957d6bd0f |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-06870fcad9dc44d2a943b45957d6bd0f2025-02-03T01:09:47ZengWileyAdvances in High Energy Physics1687-73571687-73652012-01-01201210.1155/2012/274614274614Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREXM. K. Pavićević0F. Bosch1G. Amthauer2I. Aničin3B. Boev4W. Brüchle5V. Cvetković6Z. Djurčić7W. F. Henning8R. Jelenković9V. Pejović10A. Weiss11Division of Material Sciences and Physics, Department of Mineralogy, University of Salzburg, Hellbrunner Street 34, 5020 Salzburg, AustriaGSI Helmholtzzentrum für Schwerionenforschung, Planck Straße 1, 64291 Darmstadt, GermanyDivision of Material Sciences and Physics, Department of Mineralogy, University of Salzburg, Hellbrunner Street 34, 5020 Salzburg, AustriaInstitute of Physics, University of Belgrade, Pregrevica 118, 11000 Belgrade, SerbiaFaculty of Mining and Geology, Goce Delčev University of Štip, Goce Delčev 89, 92000 Štip, MacedoniaGSI Helmholtzzentrum für Schwerionenforschung, Planck Straße 1, 64291 Darmstadt, GermanyFaculty of Mining and Geology, University of Belgrade, Đušina 7/II, 11000 Belgrade, SerbiaPhysics Division, Argonne National Laboratory (ANL), 9700 South Cass Avenue, Argonne, IL 60439, USAPhysics Department E12, Technical University of Munich, James-Franck Street, 85748 Garching, GermanyFaculty of Mining and Geology, University of Belgrade, Đušina 7/II, 11000 Belgrade, SerbiaInstitute of Physics, University of Belgrade, Pregrevica 118, 11000 Belgrade, SerbiaMax-Planck Institute for Astrophysics, Karl-Schwarzschild Street 1, 85741 Garching, GermanyLOREX (LORandite EXperiment) addresses the determination of the solar (pp) neutrino flux during the last four million years by exploiting the reaction 205Tl+νe→ 205Pb+e- with an incomparably low-energy threshold of 50 keV for the capture of solar neutrinos. The ratio of 205Pb/205Tl atoms in the Tl-bearing mineral lorandite provides, if corrected for the cosmic-ray induced background, the product of the flux of solar neutrinos and their capture probability by 205Tl, averaged over the age of lorandite. To get the mean solar neutrino flux itself, four problems have to be addressed: (1) the geological age of lorandite, (2) the amount of background cosmic-ray-induced 205Pb atoms which strongly depends on the erosion rate of the lorandite-bearing rocks, (3) the capture probability of solar neutrinos by 205Tl and (4) the extraction of lorandite and the appropriate technique to “count” the small number of 205Pb atoms in relation to the number of 205Tl atoms. This paper summarizes the status of items 1 (age) and 3 (neutrino capture probability) and presents in detail the progress achieved most recently concerning the items 2 (background/erosion) and 4 (“counting” of 205Pb atoms in lorandite).http://dx.doi.org/10.1155/2012/274614 |
| spellingShingle | M. K. Pavićević F. Bosch G. Amthauer I. Aničin B. Boev W. Brüchle V. Cvetković Z. Djurčić W. F. Henning R. Jelenković V. Pejović A. Weiss Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX Advances in High Energy Physics |
| title | Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX |
| title_full | Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX |
| title_fullStr | Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX |
| title_full_unstemmed | Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX |
| title_short | Status and New Data of the Geochemical Determination of the pp-Neutrino Flux by LOREX |
| title_sort | status and new data of the geochemical determination of the pp neutrino flux by lorex |
| url | http://dx.doi.org/10.1155/2012/274614 |
| work_keys_str_mv | AT mkpavicevic statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT fbosch statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT gamthauer statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT ianicin statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT bboev statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT wbruchle statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT vcvetkovic statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT zdjurcic statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT wfhenning statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT rjelenkovic statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT vpejovic statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex AT aweiss statusandnewdataofthegeochemicaldeterminationoftheppneutrinofluxbylorex |