EXISTENCE OF LONG-LIVED ISOTOPES OF A SUPERHEAVY ELEMENT IN NATURAL Au-Reference-Cited by-同舟云学术

EXISTENCE OF LONG-LIVED ISOTOPES OF A SUPERHEAVY ELEMENT IN NATURAL Au

Published:2009-03 Issue:03 Volume:18 Page:621-629
ISSN:0218-3013
Container-title:International Journal of Modern Physics E
language:en
Short-container-title:Int. J. Mod. Phys. E

Author:

MARINOV A.¹,RODUSHKIN I.²,PAPE A.³,KASHIV Y.¹,KOLB D.⁴,BRANDT R.⁵,GENTRY R. V.⁶,MILLER H. W.⁷,HALICZ L.⁸,SEGAL I.⁸

Affiliation:

1. Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

2. Analytica AB, Aurorum 10, S-977 75 Luleå, Sweden

3. IPHC-UMR7178, IN2P3-CNRS/ULP, BP 28, F-67037 Strasbourg cedex 2, France

4. Department of Physics, University GH Kassel, 34109 Kassel, Germany

5. Kernchemie, Philipps University, 35041 Marburg, Germany

6. Earth Science Associates, P.O. Box 12067, Knoxville, TN 37912-0067, USA

7. P.O. Box 1092, Boulder, CO 80306-1092, USA

8. Geological Survey of Israel, 30 Malkhei Israel St., Jerusalem 95501, Israel

Abstract

Evidence for the existence of long-lived isotopes with atomic mass numbers 261 and 265, and abundance of (1-10)×10-10relative to Au, has been found in a study of natural Au using inductively coupled plasma-sector field mass spectrometry. The measured masses match the predictions for the masses of261Rg and265Rg (Z=111), and those of some isobars of nearby elements. Based on chemical arguments, it is proposed that they are most probably isotopes of Rg. It is deduced that long-lived isomeric states exist in these isotopes. The hypothesis that they belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed.

Publisher

World Scientific Pub Co Pte Ltd

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S021830130901280X

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