FSU Home  
FSU Experimental Nuclear Physics
 

Dr. Mark A. Riley


Recent Research:

“A gamma-ray study of unusual behavior in rapidly rotating nuclei using the world’s most powerful detector system is highlighted for special mention in Physical Review Letters.”

Publications, Conference Proceedings, and Invited Talks: July 2004 - June 2007:

Publications:

High-spin structure beyond band termination in 157Er
Phys. Rev. Lett. 92, 252502 (2004).

Highly deformed bands in 175Hf
Phys.Rev. C70, 054314 (2004).

p-sd shell gap reduction in neutron-rich systems and cross-shell excitations in 20O
Phys. Rev. Lett. 94, 132501 (2005).

Yrast structures in the light Pt isotopes 169–173Pt

J. Phys. G: Nucl. Part. Phys. 31 (2005) S1715–S1718

Beyond Band Termination in 157Er and the Search for Wobbling Excitations in Strongly Deformed 174Hf
J. Phys. G: Nucl. Part. Phys. 31 (2005) S1735-S1740

Wobbling Excitations in Strongly Deformed Hf Nuclei?
Phys. Lett. B. 608, 31 (2005).

Observation of the second proton alignment in 160Tm
Phys. Rev. C 72, 057303 (2005).

Structural behavior of 157,158,159Dy in the I=30-50 spin regime
Phys. Rev. C 72, 064307 (2005).

Detailed high-spin spectroscopy and the search for the wobbling mode in 171Ta
Phys. Rev. C 72, 064325 (2005).

Structure of 26Na from the 14C(14C,d) Reaction
Phys. Rev. C 73, 044321 (2006).

Yrast states and band crossings in the neutron-deficient platinum isotopes 169-173Pt
Phys. Rev. C 74, 014302 (2006).

High-spin states in 169Ta
Phys. Rev. C 74, 054314 (2006).

Observation of States Beyond Band Termination in 156,157,158Er and Strongly Deformed Structures in  173,174,175Hf
Phys. Scr. T125, 123 (2006).

Return of Collective Rotation in 157Er and 158Er at Ultrahigh Spin
Phys. Rev. Lett. 98, 012501 (2007).

The evolution of rotational structures with spin in 152Gd and changes in the Z=64 semi-magic shell gap
Phys. Rev. C 75, 064314 (2007).

Conference Proceedings:

Beyond Band Termination in 157Er and the Search for Wobbling Excitations in Strongly Deformed; 174Hf
J. Phys. G: Nucl. Part. Phys. 31 (2005) S1735-S1740

Yrast structures in the light Pt isotopes 169173Pt
Phys. G: Nucl. Part. Phys. 31 (2005) S1715S1718

Search For Wobbling Excitations In Hf Nuclei: Are The SD Bands Triaxial?
AIP Conference Proceedings -- April 5, 2005 -- Volume 764, Issue 1, pp.15-20

Building Angular Momentum Beyond Band Termination in 157,158Er
Proceedings of the DAE-BRNS Symposium on Nucl. Phys., December 11-15, 2006, India, Editors: S. Kailas, S. Kumar and S. Santra

Observation of States Beyond Band Termination in 156,157,158Er and Strongly Deformed Structures in 173,174,175Hf
Phys. Scr. T125, 123 (2006)

Invited Talks:

The Van de Graaff Accelerator and Nuclear Physics Research:
Guest speaker at the celebration in honor of Robert J. Van de Graaff and the 75th anniversary of his invention. Held at the family home in Tuscaloosa, Alabama, Dec. 2004. 

Beyond Band Termination in 157Er and the Search for Wobbling Excitations in Strongly Deformed 174Hf:
Invited talk at the NUSTAR ’05 International Conference on Nuclear Structure, Astrophysics and Reactions, Surrey, UK, Jan. 5-8, 2005.

Observation of States Beyond Band Termination in 156,157,158Er and Strongly Deformed Structures in 173,174Hf:
Invited talk at the International Conference on Finite Fermionic Systems: Nilsson Model 50 Years, Lund, Sweden, June 14-18, 2005.

New Results at High-Spin in the N = 90 Region:
Invited talk at the International Conference on Nuclear Structure  entitled “The Gudrun Symposium” in honor of the retirement of Gudrun B. Hagemann from the Niels Bohr Institute, held in Copenhagen, Denmark, Dec 15, 16, 2005.  

The Return of Collectivity at Ultra-High Spin in 158Er:
Invited talk at the International Symposium on Contemporary Frontiers in Nuclear Structure, American Chemical Society meeting, Atlanta, March, 2006.

Nuclear Structure Opportunities with Reaccelerated Beams At “Very” High Spin:
Invited talk at the Workshop on Nuclear Structure Opportunities with Reaccelerated Beams, Michigan State University, May, 2006.

What Lies Beyond Band Termination in N~90 Erbium Isotopes: The Return of Collectivity!:
Invited talk at the International Conference on Nuclear Structure 06: Nuclei at the Limits, Oak Ridge, TN, July 2006.

Strongly-Deformed Rotational Structures at Ultra-High Spin near N = 90:
Invited talk at the International Gordon Research Conference on Nuclear Chemistry, June 3-8, 2007, Colby-Sawyer College, New London, NH. 

 

Dr. Mark Riley

Office: 316, 214 Keen
Phone: (850) 644-2867, 2066
E-mail: