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Title: {alpha} Decay of {sup 109}I and Its Implications for the Proton Decay of {sup 105}Sb and the Astrophysical Rapid Proton-Capture Process

Abstract

An {alpha}-decay branch of (1.4{+-}0.4)x10{sup -4} has been discovered in the decay of {sup 109}I, which predominantly decays via proton emission. The measured Q{sub {alpha}} value of 3918{+-}21 keV allows the indirect determination of the Q value for proton emission from {sup 105}Sb of 356{+-}22 keV, which is approximately of 130 keV more bound than previously reported. This result is relevant for the astrophysical rapid proton-capture process, which would terminate in the {sup 105}Sn(p,{gamma}){sup 106}Sb(p,{gamma}){sup 107}Te({alpha}decay){sup 103}Sn cycle at the densities expected in explosive hydrogen burning scenarios, unless unusually strong pairing effects result in a {sup 103}Sn(p,{gamma}){sup 104}Sb(p,{gamma}){sup 105}Te({alpha}decay){sup 101}Sn) cycle.

Authors:
 [1];  [2]; ;  [1];  [3]; ;  [4]; ;  [5];  [6]; ; ;  [7];  [8];  [1];  [3];  [9];  [3];  [10];  [9] more »;  [11];  [1];  [12] « less
  1. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States)
  2. (Italy)
  3. (United States)
  4. UNIRIB, Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831 (United States)
  5. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
  6. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
  7. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)
  8. Department of Physics and Astronomy, Mississippi State University, Mississippi 39762 (United States)
  9. (Poland)
  10. Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831 (United States)
  11. Department of Physics, University of Liverpool, Liverpool, L69 7ZE (United Kingdom)
  12. (United States) (and others)
Publication Date:
OSTI Identifier:
20951395
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevLett.98.212501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA DECAY; ANTIMONY 104; ANTIMONY 105; ANTIMONY 106; CAPTURE; GAMMA RADIATION; HYDROGEN BURNING; IODINE 109; KEV RANGE 100-1000; MEV RANGE 01-10; PROTON REACTIONS; PROTON-EMISSION DECAY; Q-VALUE; TELLURIUM 105; TELLURIUM 107; TIN 101; TIN 103; TIN 105

Citation Formats

Mazzocchi, C., IFGA, University of Milan and INFN, Milan, I-20133, Grzywacz, R., Bingham, C. R., Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Liddick, S. N., Batchelder, J. C., Rykaczewski, K. P., Gross, C. J., Schatz, H., Hamilton, J. H., Hwang, J. K., Li, K., Ilyushkin, S., Korgul, A., Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, Institute of Experimental Physics, Warsaw University, Warsaw, PL 00-681, Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831, Krolas, W., Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Cracow, Page, R. D., Simpson, D., and Department of Physics, Astronomy, and Geology, East Tennessee State University, Johnson City, Tennessee 37614. {alpha} Decay of {sup 109}I and Its Implications for the Proton Decay of {sup 105}Sb and the Astrophysical Rapid Proton-Capture Process. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.212501.
Mazzocchi, C., IFGA, University of Milan and INFN, Milan, I-20133, Grzywacz, R., Bingham, C. R., Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Liddick, S. N., Batchelder, J. C., Rykaczewski, K. P., Gross, C. J., Schatz, H., Hamilton, J. H., Hwang, J. K., Li, K., Ilyushkin, S., Korgul, A., Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, Institute of Experimental Physics, Warsaw University, Warsaw, PL 00-681, Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831, Krolas, W., Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Cracow, Page, R. D., Simpson, D., & Department of Physics, Astronomy, and Geology, East Tennessee State University, Johnson City, Tennessee 37614. {alpha} Decay of {sup 109}I and Its Implications for the Proton Decay of {sup 105}Sb and the Astrophysical Rapid Proton-Capture Process. United States. doi:10.1103/PHYSREVLETT.98.212501.
Mazzocchi, C., IFGA, University of Milan and INFN, Milan, I-20133, Grzywacz, R., Bingham, C. R., Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, Liddick, S. N., Batchelder, J. C., Rykaczewski, K. P., Gross, C. J., Schatz, H., Hamilton, J. H., Hwang, J. K., Li, K., Ilyushkin, S., Korgul, A., Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, Institute of Experimental Physics, Warsaw University, Warsaw, PL 00-681, Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831, Krolas, W., Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Cracow, Page, R. D., Simpson, D., and Department of Physics, Astronomy, and Geology, East Tennessee State University, Johnson City, Tennessee 37614. Fri . "{alpha} Decay of {sup 109}I and Its Implications for the Proton Decay of {sup 105}Sb and the Astrophysical Rapid Proton-Capture Process". United States. doi:10.1103/PHYSREVLETT.98.212501.
@article{osti_20951395,
title = {{alpha} Decay of {sup 109}I and Its Implications for the Proton Decay of {sup 105}Sb and the Astrophysical Rapid Proton-Capture Process},
author = {Mazzocchi, C. and IFGA, University of Milan and INFN, Milan, I-20133 and Grzywacz, R. and Bingham, C. R. and Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 and Liddick, S. N. and Batchelder, J. C. and Rykaczewski, K. P. and Gross, C. J. and Schatz, H. and Hamilton, J. H. and Hwang, J. K. and Li, K. and Ilyushkin, S. and Korgul, A. and Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 and Institute of Experimental Physics, Warsaw University, Warsaw, PL 00-681 and Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831 and Krolas, W. and Institute of Nuclear Physics, Polish Academy of Sciences, PL 31-342 Cracow and Page, R. D. and Simpson, D. and Department of Physics, Astronomy, and Geology, East Tennessee State University, Johnson City, Tennessee 37614},
abstractNote = {An {alpha}-decay branch of (1.4{+-}0.4)x10{sup -4} has been discovered in the decay of {sup 109}I, which predominantly decays via proton emission. The measured Q{sub {alpha}} value of 3918{+-}21 keV allows the indirect determination of the Q value for proton emission from {sup 105}Sb of 356{+-}22 keV, which is approximately of 130 keV more bound than previously reported. This result is relevant for the astrophysical rapid proton-capture process, which would terminate in the {sup 105}Sn(p,{gamma}){sup 106}Sb(p,{gamma}){sup 107}Te({alpha}decay){sup 103}Sn cycle at the densities expected in explosive hydrogen burning scenarios, unless unusually strong pairing effects result in a {sup 103}Sn(p,{gamma}){sup 104}Sb(p,{gamma}){sup 105}Te({alpha}decay){sup 101}Sn) cycle.},
doi = {10.1103/PHYSREVLETT.98.212501},
journal = {Physical Review Letters},
number = 21,
volume = 98,
place = {United States},
year = {Fri May 25 00:00:00 EDT 2007},
month = {Fri May 25 00:00:00 EDT 2007}
}