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Title: Decay branching ratios of excited Mg 24

Abstract

Here, the nuclear reactions 12C( 12C, α) 20Ne, 12C( 12C, p) 23Na, and 12C( 12C, n) 23Mg are the primary reactions in carbon burning, which occurs as part of several stellar processes. The Gamow window, which describes the energy range where most of these reactions take place, is typically around 1.5 MeV in the center-of-mass frame. Direct measurements of the cross sections at this energy are difficult due to the large Coulomb barrier present between the carbon nuclei; however, a successful surrogate measurement can provide the branching ratios between these reactions while avoiding the 12C + 12C Coulomb barrier. Finally, an experiment was performed using inelastic scattering of 40 MeV α particles on 24Mg as a possible surrogate for the 12C + 12C compound nucleus.

Authors:
 [1];  [1];  [2];  [2];  [3];  [4];  [4];  [3];  [2];  [2];  [5];  [2];  [4];  [6];  [4];  [4];  [4];  [3];  [2];  [7]
  1. Univ. of California, Berkeley, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Texas A & M Univ., College Station, TX (United States)
  5. Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. St. Mary's College, Halifax, NS (Canada)
  7. Univ. of Richmond, Richmond, VA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1393115
DOE Contract Number:  
AC02-05CH11231; NA0003180; FG52-09NA29467; NA0000979; AC52-07NA27344; FG02-93ER40773
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 95; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Munson, J. M., Norman, E. B., Burke, J. T., Casperson, R. J., Phair, L. W., McCleskey, E., McCleskey, M., Lee, D., Hughes, R. O., Ota, S., Czeszumska, A., Chodash, P. A., Saastamoinen, A. J., Austin, R. A. E., Spiridon, A. E., Dag, M., Chyzh, R., Basunia, M. S., Ressler, J. J., and Ross, T. J. Decay branching ratios of excited Mg24. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.95.015805.
Munson, J. M., Norman, E. B., Burke, J. T., Casperson, R. J., Phair, L. W., McCleskey, E., McCleskey, M., Lee, D., Hughes, R. O., Ota, S., Czeszumska, A., Chodash, P. A., Saastamoinen, A. J., Austin, R. A. E., Spiridon, A. E., Dag, M., Chyzh, R., Basunia, M. S., Ressler, J. J., & Ross, T. J. Decay branching ratios of excited Mg24. United States. doi:10.1103/PhysRevC.95.015805.
Munson, J. M., Norman, E. B., Burke, J. T., Casperson, R. J., Phair, L. W., McCleskey, E., McCleskey, M., Lee, D., Hughes, R. O., Ota, S., Czeszumska, A., Chodash, P. A., Saastamoinen, A. J., Austin, R. A. E., Spiridon, A. E., Dag, M., Chyzh, R., Basunia, M. S., Ressler, J. J., and Ross, T. J. Thu . "Decay branching ratios of excited Mg24". United States. doi:10.1103/PhysRevC.95.015805.
@article{osti_1393115,
title = {Decay branching ratios of excited Mg24},
author = {Munson, J. M. and Norman, E. B. and Burke, J. T. and Casperson, R. J. and Phair, L. W. and McCleskey, E. and McCleskey, M. and Lee, D. and Hughes, R. O. and Ota, S. and Czeszumska, A. and Chodash, P. A. and Saastamoinen, A. J. and Austin, R. A. E. and Spiridon, A. E. and Dag, M. and Chyzh, R. and Basunia, M. S. and Ressler, J. J. and Ross, T. J.},
abstractNote = {Here, the nuclear reactions 12C(12C, α)20Ne, 12C(12C, p)23Na, and 12C(12C, n) 23Mg are the primary reactions in carbon burning, which occurs as part of several stellar processes. The Gamow window, which describes the energy range where most of these reactions take place, is typically around 1.5 MeV in the center-of-mass frame. Direct measurements of the cross sections at this energy are difficult due to the large Coulomb barrier present between the carbon nuclei; however, a successful surrogate measurement can provide the branching ratios between these reactions while avoiding the 12C + 12C Coulomb barrier. Finally, an experiment was performed using inelastic scattering of 40 MeV α particles on 24Mg as a possible surrogate for the 12C + 12C compound nucleus.},
doi = {10.1103/PhysRevC.95.015805},
journal = {Physical Review C},
number = 1,
volume = 95,
place = {United States},
year = {Thu Jan 19 00:00:00 EST 2017},
month = {Thu Jan 19 00:00:00 EST 2017}
}