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Title: Validating (d,pγ) as a surrogate for neutron capture

Abstract

The r-process is responsible for creating roughly half of the elements heavier than iron. It has recently become understood that the rates at which neutron capture reactions proceed at late times in the r-process may dramatically affect the final abundance pattern. However, direct measurements of neutron capture reaction rates on exotic nuclei are exceptionally difficult, necessitating the development of indirect approaches such as the surrogate technique. The (d,pγ) reaction at low energies was identified as a promising surrogate for the (n,γ) reaction, as both reactions share many characteristics. We report on a program to validate (d,pγ) as a surrogate for (n,γ) using 95Mo as a target. The experimental campaign includes direct measurements of the γ-ray intensities from the decay of excited states populated in the 95Mo(n,γ) and 95Mo(d,pγ) reactions.

Authors:
 [1];  [1];  [2];  [1];  [3];  [3];  [4];  [5];  [1];  [1];  [6];  [1];  [7];  [4];  [3];  [1];  [3];  [1];  [8];  [9] more »;  [10];  [11];  [1];  [4];  [12];  [8];  [3];  [7];  [7] « less
  1. Rutgers Univ., New Brunswick, NJ (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Texas A & M Univ., College Station, TX (United States)
  6. Saint Mary's Univ., Halifax (Canada)
  7. Argonne National Lab. (ANL), Argonne, IL (United States)
  8. Univ. of Richmond, VA (United States)
  9. Univ. of Tennessee, Knoxville, TN (United States)
  10. Tennessee Technological Univ., Cookeville, TN (United States)
  11. Univ. of Massachusetts, Lowell, MA (United States)
  12. oak ridge associated Univ., TN (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1170271
Report Number(s):
LA-UR-15-21102
TRN: US1600052
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: CGS15, Dresden (Germany), 25-29 Aug 2014
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DEUTERON REACTIONS; STRIPPING; ONE-NUCLEON TRANSFER REACTIONS; PROTONS; GAMMA RADIATION; NEUTRON REACTIONS; MOLYBDENUM 95 TARGET; R PROCESS; CAPTURE; NUCLEAR REACTION KINETICS; GAMMA SPECTRA; MOLYBDENUM 96; CROSS SECTIONS; VALIDATION

Citation Formats

Ratkiewicz, A., Cizewski, J. A., Pain, S. D., Adekola, A. S., Burke, J. T., Casperson, R. J., Fotiadis, Nikolaos, McCleskey, M., Burcher, S., Shand, C. M, Austin, R. A. E., Baugher, T., Carpenter, M. P., Devlin, Matthew James, Escher, J. E., Hardy, S., Hatarik, R., Howard, M. E., Hughes, R. O., Jones, K. L., Kozub, R. L., Lister, C. J., Manning, B., O'Donnell, John M., Peters, W. A., Ross, T. J., Scielzo, N. D., Seweryniak, D., and Zhu, S. Validating (d,pγ) as a surrogate for neutron capture. United States: N. p., 2015. Web.
Ratkiewicz, A., Cizewski, J. A., Pain, S. D., Adekola, A. S., Burke, J. T., Casperson, R. J., Fotiadis, Nikolaos, McCleskey, M., Burcher, S., Shand, C. M, Austin, R. A. E., Baugher, T., Carpenter, M. P., Devlin, Matthew James, Escher, J. E., Hardy, S., Hatarik, R., Howard, M. E., Hughes, R. O., Jones, K. L., Kozub, R. L., Lister, C. J., Manning, B., O'Donnell, John M., Peters, W. A., Ross, T. J., Scielzo, N. D., Seweryniak, D., & Zhu, S. Validating (d,pγ) as a surrogate for neutron capture. United States.
Ratkiewicz, A., Cizewski, J. A., Pain, S. D., Adekola, A. S., Burke, J. T., Casperson, R. J., Fotiadis, Nikolaos, McCleskey, M., Burcher, S., Shand, C. M, Austin, R. A. E., Baugher, T., Carpenter, M. P., Devlin, Matthew James, Escher, J. E., Hardy, S., Hatarik, R., Howard, M. E., Hughes, R. O., Jones, K. L., Kozub, R. L., Lister, C. J., Manning, B., O'Donnell, John M., Peters, W. A., Ross, T. J., Scielzo, N. D., Seweryniak, D., and Zhu, S. Fri . "Validating (d,pγ) as a surrogate for neutron capture". United States. doi:. https://www.osti.gov/servlets/purl/1170271.
@article{osti_1170271,
title = {Validating (d,pγ) as a surrogate for neutron capture},
author = {Ratkiewicz, A. and Cizewski, J. A. and Pain, S. D. and Adekola, A. S. and Burke, J. T. and Casperson, R. J. and Fotiadis, Nikolaos and McCleskey, M. and Burcher, S. and Shand, C. M and Austin, R. A. E. and Baugher, T. and Carpenter, M. P. and Devlin, Matthew James and Escher, J. E. and Hardy, S. and Hatarik, R. and Howard, M. E. and Hughes, R. O. and Jones, K. L. and Kozub, R. L. and Lister, C. J. and Manning, B. and O'Donnell, John M. and Peters, W. A. and Ross, T. J. and Scielzo, N. D. and Seweryniak, D. and Zhu, S.},
abstractNote = {The r-process is responsible for creating roughly half of the elements heavier than iron. It has recently become understood that the rates at which neutron capture reactions proceed at late times in the r-process may dramatically affect the final abundance pattern. However, direct measurements of neutron capture reaction rates on exotic nuclei are exceptionally difficult, necessitating the development of indirect approaches such as the surrogate technique. The (d,pγ) reaction at low energies was identified as a promising surrogate for the (n,γ) reaction, as both reactions share many characteristics. We report on a program to validate (d,pγ) as a surrogate for (n,γ) using 95Mo as a target. The experimental campaign includes direct measurements of the γ-ray intensities from the decay of excited states populated in the 95Mo(n,γ) and 95Mo(d,pγ) reactions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 13 00:00:00 EST 2015},
month = {Fri Feb 13 00:00:00 EST 2015}
}

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