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Search for solar axions emitted in the M1-transition of 7Li* with Borexino CTF.
- Source :
-
European Physical Journal C -- Particles & Fields . Mar2008, Vol. 54 Issue 1, p61-72. 12p. 1 Diagram, 1 Chart, 11 Graphs. - Publication Year :
- 2008
-
Abstract
- Results of background measurements with a prototype of the Borexino detector were used to search for 478 keV solar axions emitted in the M1-transitions of 7Li*. The Compton conversion of axion to a photon A+e→e+γ, axioelectric effect A+e+Z→e+Z, decay of axion in two photons A→2γ and Primakoff conversion on nuclei A+Z→γ+Z are considered. The upper limit on constants of interaction of axion with electrons, photons and nucleons – gAegAN≤(1.0–2.4)×10-10 at mA≤450 keV and gAγgAN≤5×10-9 GeV-1 at mA≤10 keV are obtained (90%c.l.). For heavy axions with mass at 100<mA<400 keV the limits gAe<(0.7–2.0)×10-8 and gAγ<10-9–10-8 are obtained in assumption that gAN depends on mA as for KSVZ axion model. These limits are stronger than obtained in previous laboratory-based experiments using nuclear reactor and artificial radioactive sources. [ABSTRACT FROM AUTHOR]
- Subjects :
- *AXIONS
*LITHIUM
*COMPTON effect
*PHOTONS
*ELECTRONS
*PARTICLES (Nuclear physics)
Subjects
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 54
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 29342034
- Full Text :
- https://doi.org/10.1140/epjc/s10052-008-0530-9