Double-{beta}-decay Q values of {sup 130}Te, {sup 128}Te, and {sup 120}Te

The double-{beta}-decay Q values of {sup 130}Te, {sup 128}Te, and {sup 120}Te have been determined from parent-daughter mass differences measured with the Canadian Penning Trap mass spectrometer. The {sup 132}Xe-{sup 129}Xe mass difference, which is precisely known, was also determined to confirm th...

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Veröffentlicht in:	Physical review. C, Nuclear physics Nuclear physics, 2009-08, Vol.80 (2)
Hauptverfasser:	Scielzo, N. D., Caldwell, S., Savard, G., Sternberg, M., Van Schelt, J., Department of Physics, University of Chicago, Chicago, Illinois 60637, Clark, J. A., Levand, A. F., Sun, T., Deibel, C. M., Joint Institute of Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, Fallis, J., Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Gulick, S., Lascar, D., Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, Li, G., Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Mintz, J., Norman, E. B., Department of Nuclear Engineering, University of California, Berkeley, California 94720, Sharma, K. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	DOUBLE BETA DECAY ELECTRON CAPTURE EMISSION EVALUATION KEV RANGE MASS MASS DIFFERENCE MASS SPECTROMETERS NUCLEAR PHYSICS AND RADIATION PHYSICS Q-VALUE TELLURIUM 120 TELLURIUM 128 TELLURIUM 130 XENON 129 XENON 130 XENON 131 XENON 131 TARGET XENON 132
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Zusammenfassung:	The double-{beta}-decay Q values of {sup 130}Te, {sup 128}Te, and {sup 120}Te have been determined from parent-daughter mass differences measured with the Canadian Penning Trap mass spectrometer. The {sup 132}Xe-{sup 129}Xe mass difference, which is precisely known, was also determined to confirm the accuracy of these results. The {sup 130}Te Q value was found to be 2527.01{+-}0.32 keV, which is 3.3 keV lower than the 2003 Atomic Mass Evaluation recommended value and is consistent with another recent Penning trap measurement. The {sup 128}Te and {sup 120}Te Q values were found to be 865.87{+-}1.31 and 1714.81{+-}1.25 keV, respectively. For {sup 120}Te, this reduction in uncertainty of nearly a factor of 8 opens up the possibility of using this isotope for sensitive searches for neutrinoless double-electron capture and electron capture with {beta}{sup +}emission.
ISSN:	0556-2813 1089-490X
DOI:	10.1103/PHYSREVC.80.025501