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

A. Ratkiewicz; J. A. Cizewski; S. D. Pain; A. S. Adekola; J. T. Burke; R. J. Casperson; N. Fotiades; M. McCleskey; S. Burcher; C. M. Shand; R. A.E. Austin; T. Baugher; M. P. Carpenter; M. Devlin; J. E. Escher; S. Hardy; R. Hatarik; M. E. Howard; R. O. Hughes; K. L. Jones; R. L. Kozub; C. J. Lister; B. Manning; J. M. O'Donnell; W. A. Peters; T. J. Ross; N. D. Scielzo; D. Seweryniak; S. Zhu

doi:10.1051/epjconf/20159302012

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

A. Ratkiewicz, J. A. Cizewski, S. D. Pain, A. S. Adekola, J. T. Burke, R. J. Casperson, N. Fotiades, M. McCleskey, S. Burcher, C. M. Shand, R. A.E. Austin, T. Baugher, M. P. Carpenter, M. Devlin, J. E. Escher, S. Hardy, R. Hatarik, M. E. Howard, R. O. Hughes, K. L. JonesR. L. Kozub, C. J. Lister, B. Manning, J. M. O'Donnell, W. A. Peters, T. J. Ross, N. D. Scielzo, D. Seweryniak, S. Zhu

Nuclear Structure and Nuclear Astrophysi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

8 Scopus citations

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.

Original language	English
Title of host publication	CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics
Editors	Kai Zuber, Ronald Schwengner
Publisher	EDP Sciences
ISBN (Electronic)	9782759817948
DOIs	https://doi.org/10.1051/epjconf/20159302012
State	Published - May 28 2015
Event	15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014 - Dresden, Germany Duration: Aug 25 2014 → Aug 29 2014

Publication series

Name	EPJ Web of Conferences
Volume	93
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Conference

Conference	15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014
Country/Territory	Germany
City	Dresden
Period	08/25/14 → 08/29/14

Funding

The authors thank the operations staff at the Texas A&M Cyclotron institute for their exceptional support of the normal kinematics measurement of the 95Mo(d, p\u03B3) reaction. A.R. thanks Giordano Cerizza for useful discussions. This work is supported in part by the U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA) Stewardship Science Academic Alliance Programs through Cooperative Agreements No. DE- FG52- 08NA28552 and DE-NA0002132 (Rutgers), No. DE-FG52-09NA29467 (TAMU); DOE Contracts DEAC02- 06CH11357 (ANL), No. DE-AC52-07NA27344 (LLNL), No. AC52-06NA25396 (LANL), No. DEFG52- 06 NA26206 (Richmond), DOE Office of Science No. DE-AC05-00OR22725 (ORNL), DE-FG02- 96ER40983 (UTK), No. DE-SC0001174 (UTK), DEFG02- 96ER40955 (TTU), No. DE-FG02-05 ER41379 and ), and No. DE-FG02-93ER40773 (TAMU); the National Science Foundation No. 1067906 (Rutgers); and the Department of Energy\u2019s NNSA Office of Defense Nuclear Nonproliferation Research & Development (LLNL).

Access to Document

10.1051/epjconf/20159302012

Cite this

Ratkiewicz, A., Cizewski, J. A., Pain, S. D., Adekola, A. S., Burke, J. T., Casperson, R. J., Fotiades, N., McCleskey, M., Burcher, S., Shand, C. M., Austin, R. A. E., Baugher, T., Carpenter, M. P., Devlin, M., Escher, J. E., Hardy, S., Hatarik, R., Howard, M. E., Hughes, R. O., ... Zhu, S. (2015). Validating (d,pγ) as a surrogate for neutron capture. In K. Zuber, & R. Schwengner (Eds.), CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics Article 02012 (EPJ Web of Conferences; Vol. 93). EDP Sciences. https://doi.org/10.1051/epjconf/20159302012

@inproceedings{b5d8115a6c0d4b239b659a5f5f639770,

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.",

author = "A. Ratkiewicz and Cizewski, {J. A.} and Pain, {S. D.} and Adekola, {A. S.} and Burke, {J. T.} and Casperson, {R. J.} and N. Fotiades and M. McCleskey and S. Burcher and Shand, {C. M.} and Austin, {R. A.E.} and T. Baugher and Carpenter, {M. P.} and M. Devlin and Escher, {J. E.} and S. Hardy and R. Hatarik and Howard, {M. E.} and Hughes, {R. O.} and Jones, {K. L.} and Kozub, {R. L.} and Lister, {C. J.} and B. Manning and O'Donnell, {J. M.} and Peters, {W. A.} and Ross, {T. J.} and Scielzo, {N. D.} and D. Seweryniak and S. Zhu",

year = "2015",

month = may,

day = "28",

doi = "10.1051/epjconf/20159302012",

language = "English",

series = "EPJ Web of Conferences",

publisher = "EDP Sciences",

editor = "Kai Zuber and Ronald Schwengner",

booktitle = "CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics",

note = "15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014 ; Conference date: 25-08-2014 Through 29-08-2014",

}

Ratkiewicz, A, Cizewski, JA, Pain, SD, Adekola, AS, Burke, JT, Casperson, RJ, Fotiades, N, McCleskey, M, Burcher, S, Shand, CM, Austin, RAE, Baugher, T, Carpenter, MP, Devlin, M, Escher, JE, Hardy, S, Hatarik, R, Howard, ME, Hughes, RO, Jones, KL, Kozub, RL, Lister, CJ, Manning, B, O'Donnell, JM, Peters, WA, Ross, TJ, Scielzo, ND, Seweryniak, D & Zhu, S 2015, Validating (d,pγ) as a surrogate for neutron capture. in K Zuber & R Schwengner (eds), CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics., 02012, EPJ Web of Conferences, vol. 93, EDP Sciences, 15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014, Dresden, Germany, 08/25/14. https://doi.org/10.1051/epjconf/20159302012

Validating (d,pγ) as a surrogate for neutron capture. / Ratkiewicz, A.; Cizewski, J. A.; Pain, S. D. et al.
CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics. ed. / Kai Zuber; Ronald Schwengner. EDP Sciences, 2015. 02012 (EPJ Web of Conferences; Vol. 93).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Validating (d,pγ) as a surrogate for neutron capture

AU - Ratkiewicz, A.

AU - Cizewski, J. A.

AU - Pain, S. D.

AU - Adekola, A. S.

AU - Burke, J. T.

AU - Casperson, R. J.

AU - Fotiades, N.

AU - McCleskey, M.

AU - Burcher, S.

AU - Shand, C. M.

AU - Austin, R. A.E.

AU - Baugher, T.

AU - Carpenter, M. P.

AU - Devlin, M.

AU - Escher, J. E.

AU - Hardy, S.

AU - Hatarik, R.

AU - Howard, M. E.

AU - Hughes, R. O.

AU - Jones, K. L.

AU - Kozub, R. L.

AU - Lister, C. J.

AU - Manning, B.

AU - O'Donnell, J. M.

AU - Peters, W. A.

AU - Ross, T. J.

AU - Scielzo, N. D.

AU - Seweryniak, D.

AU - Zhu, S.

PY - 2015/5/28

Y1 - 2015/5/28

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84959391036&partnerID=8YFLogxK

U2 - 10.1051/epjconf/20159302012

DO - 10.1051/epjconf/20159302012

M3 - Conference contribution

AN - SCOPUS:84959391036

T3 - EPJ Web of Conferences

BT - CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics

A2 - Zuber, Kai

A2 - Schwengner, Ronald

PB - EDP Sciences

T2 - 15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014

Y2 - 25 August 2014 through 29 August 2014

ER -

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

Abstract

Publication series

Conference

Funding

Access to Document

Other files and links

Fingerprint

Cite this