Dariusz Seweryniak | Argonne National Laboratory

Biography

Education

Stanislaw Malachowski High School, Plock, Poland

M.Sc. University of Warsaw, 1987

Ph.D. Uppsala University/Warsaw University, 1994
“Experimental Studies of Nuclei Near Doubly Magic ¹⁰⁰Sn”

Employment

Postdoctoral Appointee, Argonne National Laboratory/University of Maryland, 1995-1997

Assistant Physicist, Argonne National Laboratory/University of Maryland, 1998-2000

Assistant Physicist, Argonne National Laboratory, 2001-2002

Physicist, Argonne National Laboratory, 2003-2021

Senior Physicist, Argonne National Laboratory, 2021-now

Honors

co-Chair “Nuclei at the Limits” Conference, Argonne, IL, USA, 2004

Director, 16^th Exotic Beam Summer School, Argonne, IL, USA, 2017

Research Interests

I study properties of unstable nuclei located far from the line of beta stability. ATLAS with its high-quality intense beams of heavy ions is an ideal tool for producing nuclei with excess of protons. Listed below are recent experimental examples related to:

the doubly-magic ¹⁰⁰Sn nucleus [2,6,10],
nuclei spontaneously emitting protons [1, 7],
levels above the proton threshold in light proton-rich nuclei, which are situated along the path of the astrophysical rapid proton-capture process [5,8,9],
very heavy transfermium nuclei [3,4,11].

I run most of my experiments with the Fragment Mass Analyzer (FMA) or the Argonne Gas-Filled Analyzer (AGFA) stand-alone an coupled to the gamma-ray arrays Gammasphere or GRETINA.

Recent Invited Talks

“Superallowed alpha decay to doubly-magic ¹⁰⁰Sn”, 5^th Topical Workshop on Modern Aspects in Nuclei, February 4-8, 2020, Bormio, Italy

“First spectroscopic results on trans-fermium nuclei with Argonne Gas-Filled Analyzer and Gammasphere”, 4^th International Symposium on Superheavy Elements, December 1-5, 2019, Hakone, Japan

“Recent studies of exotic nuclei near the self-conjugate doubly-magic nucleus ¹⁰⁰Sn”, 2019 Fall Meeting of the APS DNP, October 14-17, Crystal City, VA

“Superallowed alpha decay into doubly magic ¹⁰⁰Sn”, Symposium on “Fundamentals of Nuclear Particle Decay”, August 28-30, 2019, Stockholm, Sweden

“Superallowed alpha decay into doubly magic ¹⁰⁰Sn”, International Nuclear Physics Conference, July 29-August 2, 2019, Glasgow, UK

“First Spectroscopic Results on Trans-Fermium Nuclei with the Argonne Gas-Filled Analyzer”, Gordon Research Conference on Nuclear Chemistry, June 16-21, 2019, New London, NH

“Recent studies of proton and alpha emission near ¹⁰⁰Sn at ATLAS”, International Conference on Proto-Emitting Nuclei, PROCON 2019, June 3-7, 2019, East Lansing, MI

“Superallowed alpha decay to doubly-magic ¹⁰⁰Sn”, International Conference on Nuclear Structure and Dynamics, 13-17 May, 2019, Venice, Italy

“Towards In-beam Spectroscopy of the Heaviest Nuclei with Gammasphere and AGFA”, 5^th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan, October 23-27, 2018, Waikoloa, HI

“Nuclear structure studies of transfermium nuclei”, Humboldt Kolleg, Interfacing Structure and Reaction Dynamics in the Synthesis of the Heaviest Nuclei, Trento, Italy September 1-4, 2015

Selected Recent Publications

[1] “Proton decay of ¹⁰⁸I and its significance for the termination of the astrophysical rp-process”, K.Auranen, D.Seweryniak, M.Albers, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, C.J.Chiara, P.Copp, H.M.David, D.T.Doherty, J.Harker, C.R.Hoffman, R.V.F.Janssens, T.L.Khoo, S.A.Kuvin, T.Lauritsen, G.Lotay, A.M.Rogers, C.Scholey, J.Sethi, R.Talwar, W.B.Walters, P.J.Woods, and S.Zhu, Phys. Lett. B 792, 187–192 (2019)

[2] “Superallowed alpha decay to doubly magic 100Sn”,
K. Auranen, D. Seweryniak, M. Albers, A. D. Ayangeakaa, S. Bottoni, M.P. Carpenter, C.J. Chiara, P. Copp, H.M. David, D.T. Doherty, J. Harker, C.R. Hoﬀman, R.V.F. Janssens, T.L. Khoo, S.A. Kuvin, T. Lauritsen, G. Lotay, A.M. Rogers, J. Sethi, C. Scholey, R. Talwar, W.B. Walters, P.J. Woods, and S. Zhu, Phys. Rev. Lett. 121, 182501 (2018)

[3] “Decay and fission hindrance of two- and four-quasiparticle K isomers in ²⁵⁴Rf”,
H.M. David, J. Chen, D. Seweryniak, F.G. Kondev, J.M. Gates, K.E. Gregorich, I. Ahmad, M. Albers, M. Alcorta, B.B. Back, B. Baartman, P.F. Bertone, L.A. Bernstein, C.M. Campbell, M.P. Carpenter, C.J. Chiara, R.M. Clark, M. Cromaz, D.T. Doherty, G.D. Dracoulis, N.E. Esker, P. Fallon, O. Gothe, J.P. Greene, P.T. Greenlees, D.J. Hartley, K. Hauschild, C.R. Hoffman, S.S. Hota, R.V.F. Janssens, T.L. Khoo, J. Konki, J.T. Kwarsick, T. Lauritsen, A.O. Macchiavelli, P.T. Mudder, C. Nair, Y. Qiu, J. Rissanen, A.M. Rogers, P. Ruotsalainen, G. Savard, S. Stolze, A. Wiens, and S. Zhu, accepted for publication in Phys. Rev. Lett., 115, 132502 (2015)

[4] “Fission Barrier of Superheavy Nuclei and Persistence of Shell Effects at High Spin: Cases of ²⁵⁴No and ²²⁰Th”,
Greg Henning, T. L. Khoo, A. Lopez-Martens, D. Seweryniak, M. Alcorta, M. Asai, B. B. Back, P. F. Bertone, D. Boilley, M. P. Carpenter, C. J. Chiara, P. Chowdhury, B. Gall, P. T. Greenlees, G. Gürdal, K. Hauschild, A. Heinz, C. R. Hoffman, R. V. F. Janssens, A. V. Karpov, B. P. Kay, F. G. Kondev, S. Lakshmi, T. Lauritsen, C. J. Lister, E. A. McCutchan, C. Nair, J. Piot, D. Potterveld, P. Reiter, A. M. Rogers, N. Rowley, and S. Zhu, Phys. Rev. Lett., 113, 262505 (2014)

[5] “Structure of Resonances in the Gamow Burning Window for the ²⁵Al(p,γ)²⁶Si Reaction in Novae”,
D. T. Doherty, P. J. Woods, D. Seweryniak, M. Albers, A. D. Ayangeakaa, M. P. Carpenter, C.J. Chiara, H. M. David, J. L. Harker, R. V. F. Janssens, A. Kankainen, C. Lederer, and S. Zhu, accepted for publication in Phys. Rev. C

[6] “Single-Neutron States in ¹⁰¹Sn”,
D. Seweryniak, M. P. Carpenter, S. Gros, A. A. Hecht, N. Hoteling, R. V. F. Janssens, T. L. Khoo, T. Lauritsen, C. J. Lister, G. Lotay, D. Peterson, A. P. Robinson, W. B. Walters, X. Wang, P. J. Woods, and S. Zhu, Phys. Rev. Lett. 99, 022504/1-4 (2007)

[7] “Effect of a Triaxial Nuclear Shape on Proton Tunneling: the Decay and Structure of ¹⁴⁵Tm”
D. Seweryniak, B. Blank, M. P. Carpenter, C. N. Davids, T. Davinson, S. J. Freeman, N. Hammond, N. Hoteling, R. V. F. Janssens, T. L. Khoo, Z. Liu, G. Mukherjee, A. Robinson, C. Scholey, S. Sinha, J. Shergur, K. Starosta, W. B. Walters, A. Woehr, and P. J. Woods, Phys. Rev. Lett. 99, 082502/1-4 (2007)

[8] “First in-beam gamma-ray spectroscopy study of ²⁴Al and its implications for the astrophysical ²³Mg(p,gamma)²⁴Al rate in ONe novae”
G. Lotay, P. J. Woods, D. Seweryniak, M. P. Carpenter, N. Hoteling, R. V. Janssens, D. G. Jenkins, T. Lauritsen, C. J. Lister, A. Robinson, and S. Zhu, Phys. Rev. C 77, 042802 (2008)

[9] “Level Structure of ²⁶Si and its Implications for the Astrophysical Reaction Rate of ²⁵Al(p,gamma)²⁶Si”
D. Seweryniak, P. J. Woods, M. P. Carpenter, T. Davinson, R. V. F. Janssens, D. G. Jenkins, T. Lauritsen, C. J. Lister, J. Shergur, S. Sinha, and A. Woehr, Phys. Rev. C75, 062801(R)/1-5 (2007)

[10] “Alpha Decay of ¹⁰⁵Te”,
D. Seweryniak, K. Starosta, C. N. Davids, S. Gros, A. A. Hecht, N. Hoteling, T. L. Khoo, K. Lagergren, G. Lotay, D. Peterson, A. Robinson, C. Vaman, W. B. Walters, P. J. Woods, and S. Zhu, Phys. Rev. C73, 061301(R)/1-3 (2006)

[11] “K-Isomers in ²⁵⁴No: Probing Single Particle Energies and Pairing Strengths in the Heaviest Nuclei”,
S. K. Tandel, T. L. Khoo, D. Seweryniak, G. Mukherjee, I. Ahmad, B. Back, R. Blinstrup, P. A. Butler, M. P. Carpenter, J. Chapman, P. Chowdhury, C. N. Davids, P. T. Greenlees, A. A. Hecht, A. Heinz, R.-D. Herzberg, P. Ikin, R. V. F. Janssens, G. D. Jones, F. G. Kondev, T. Lauritsen, C. J. Lister, E. F. Moore, D. Peterson, P. Reiter, U. S. Tandel, X. F. Wang, and S. F. Zhu, Phys. Rev. Lett. 97, 082502/1-4 (2006)