Towards Neutron Capture on Exotic Nuclei: Demonstrating (d,pγ) as a Surrogate Reaction for (n,γ)

A. Ratkiewicz; J. A. Cizewski; J. E. Escher; G. Potel; J. T. Burke; R. J. Casperson; M. McCleskey; R. A.E. Austin; S. Burcher; R. O. Hughes; B. Manning; S. D. Pain; W. A. Peters; S. Rice; T. J. Ross; N. D. Scielzo; C. Shand; K. Smith

doi:10.1103/PhysRevLett.122.052502

Towards Neutron Capture on Exotic Nuclei: Demonstrating (d,pγ) as a Surrogate Reaction for (n,γ)

A. Ratkiewicz, J. A. Cizewski, J. E. Escher, G. Potel, J. T. Burke, R. J. Casperson, M. McCleskey, R. A.E. Austin, S. Burcher, R. O. Hughes, B. Manning, S. D. Pain, W. A. Peters, S. Rice, T. J. Ross, N. D. Scielzo, C. Shand, K. Smith

Nuclear Structure and Nuclear Astrophysi

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34 Scopus citations

Abstract

The neutron-capture reaction plays a critical role in the synthesis of the elements in stars and is important for societal applications including nuclear power generation and stockpile-stewardship science. However, it is difficult - if not impossible - to directly measure neutron capture cross sections for the exotic, short-lived nuclei that participate in these processes. In this Letter we demonstrate a new technique which can be used to indirectly determine neutron-capture cross sections for exotic systems. This technique makes use of the (d,p) transfer reaction, which has long been used as a tool to study the structure of nuclei. Recent advances in reaction theory, together with data collected using this reaction, enable the determination of neutron-capture cross sections for short-lived nuclei. A benchmark study of the Mo95(d,p) reaction is presented, which illustrates the approach and provides guidance for future applications of the method with short-lived isotopes produced at rare isotope accelerators.

Original language	English
Article number	052502
Journal	Physical Review Letters
Volume	122
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.122.052502
State	Published - Feb 7 2019

Funding

The authors thank the staff of the Texas A&M Cyclotron Institute for providing the beams used in this work. This work was supported in part by the U.S. Department of Energy National Nuclear Security Administration under the Stewardship Science Academic Alliances program, NNSA Grants No. DE-FG52-09NA29467 and No. DE-NA0000979, Lawrence Livermore National Laboratory Contract No. DE-AC52-07NA27344 and LDRD 16-ERD-022, Texas A&M Nuclear Physics Grant No. DE-FG02-93ER40773, the Office of Nuclear Physics, and the National Science Foundation.

Funders	Funder number
Texas A&M Nuclear Physics	DE-FG02-93ER40773
U.S. Department of Energy National Nuclear Security Administration	DE-FG52-09NA29467, DE-NA0000979
National Science Foundation	1812316
Nuclear Physics
Lawrence Livermore National Laboratory	LDRD 16-ERD-022, DE-AC52-07NA27344

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10.1103/PhysRevLett.122.052502

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Ratkiewicz, A., Cizewski, J. A., Escher, J. E., Potel, G., Burke, J. T., Casperson, R. J., McCleskey, M., Austin, R. A. E., Burcher, S., Hughes, R. O., Manning, B., Pain, S. D., Peters, W. A., Rice, S., Ross, T. J., Scielzo, N. D., Shand, C., & Smith, K. (2019). Towards Neutron Capture on Exotic Nuclei: Demonstrating (d,pγ) as a Surrogate Reaction for (n,γ). Physical Review Letters, 122(5), Article 052502. https://doi.org/10.1103/PhysRevLett.122.052502

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title = "Towards Neutron Capture on Exotic Nuclei: Demonstrating (d,pγ) as a Surrogate Reaction for (n,γ)",

abstract = "The neutron-capture reaction plays a critical role in the synthesis of the elements in stars and is important for societal applications including nuclear power generation and stockpile-stewardship science. However, it is difficult - if not impossible - to directly measure neutron capture cross sections for the exotic, short-lived nuclei that participate in these processes. In this Letter we demonstrate a new technique which can be used to indirectly determine neutron-capture cross sections for exotic systems. This technique makes use of the (d,p) transfer reaction, which has long been used as a tool to study the structure of nuclei. Recent advances in reaction theory, together with data collected using this reaction, enable the determination of neutron-capture cross sections for short-lived nuclei. A benchmark study of the Mo95(d,p) reaction is presented, which illustrates the approach and provides guidance for future applications of the method with short-lived isotopes produced at rare isotope accelerators.",

author = "A. Ratkiewicz and Cizewski, {J. A.} and Escher, {J. E.} and G. Potel and Burke, {J. T.} and Casperson, {R. J.} and M. McCleskey and Austin, {R. A.E.} and S. Burcher and Hughes, {R. O.} and B. Manning and Pain, {S. D.} and Peters, {W. A.} and S. Rice and Ross, {T. J.} and Scielzo, {N. D.} and C. Shand and K. Smith",

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year = "2019",

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Ratkiewicz, A, Cizewski, JA, Escher, JE, Potel, G, Burke, JT, Casperson, RJ, McCleskey, M, Austin, RAE, Burcher, S, Hughes, RO, Manning, B, Pain, SD, Peters, WA, Rice, S, Ross, TJ, Scielzo, ND, Shand, C & Smith, K 2019, 'Towards Neutron Capture on Exotic Nuclei: Demonstrating (d,pγ) as a Surrogate Reaction for (n,γ)', Physical Review Letters, vol. 122, no. 5, 052502. https://doi.org/10.1103/PhysRevLett.122.052502

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AU - Escher, J. E.

AU - Potel, G.

AU - Burke, J. T.

AU - Casperson, R. J.

AU - McCleskey, M.

AU - Austin, R. A.E.

AU - Burcher, S.

AU - Hughes, R. O.

AU - Manning, B.

AU - Pain, S. D.

AU - Peters, W. A.

AU - Rice, S.

AU - Ross, T. J.

AU - Scielzo, N. D.

AU - Shand, C.

AU - Smith, K.

PY - 2019/2/7

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AB - The neutron-capture reaction plays a critical role in the synthesis of the elements in stars and is important for societal applications including nuclear power generation and stockpile-stewardship science. However, it is difficult - if not impossible - to directly measure neutron capture cross sections for the exotic, short-lived nuclei that participate in these processes. In this Letter we demonstrate a new technique which can be used to indirectly determine neutron-capture cross sections for exotic systems. This technique makes use of the (d,p) transfer reaction, which has long been used as a tool to study the structure of nuclei. Recent advances in reaction theory, together with data collected using this reaction, enable the determination of neutron-capture cross sections for short-lived nuclei. A benchmark study of the Mo95(d,p) reaction is presented, which illustrates the approach and provides guidance for future applications of the method with short-lived isotopes produced at rare isotope accelerators.

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Towards Neutron Capture on Exotic Nuclei: Demonstrating (d,pγ) as a Surrogate Reaction for (n,γ)

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