| Research
Interests
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Development of a high current
(mA) particle accelerator at Stuttgart; design and build up
of related experiments.
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Development of experiments using intense ion
beams: optical spectroscopy of heavy ion induced plasmas; exotic
molecules; scattering of polarized neutrons to determine the
nuclear optical potential; measurement of extreme low cross
sections (10-9 … 10-12 barn) for the purpose of nuclear
astrophysics.
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Investigation of some fundamental reactions
required for understanding the nucleosynthesis in stars.
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Development of basic experiments for a teaching
laboratory.
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Teaching Nuclear Physics.
Selected Publications:
“New determination
of the 12C(a,g)16O
reaction rate from g-ray angular distribution
measurements”,
J.W. Hammer, et al., Proc. of the Int. Nuclear Physics Conference
(INPC2004), Göteborg, Sweden, June 27 - July 2, 2004, Nucl.
Phys. A 752, 514 (2005)
“Astrophysical Reaction Rate of 12C(a,g)16O”,
R. Kunz, M. Fey, M. Jaeger, A. Mayer, and J.W. Hammer, G. Staudt,
S. Harissopulos and T. Paradellis, Astrophysical Journal 567,
643 (2002).
“22Ne(a,n)25Mg:
The Key Neutron Source In Massive Stars”, M. Jaeger, R. Kunz,
A. Mayer, J.W. Hammer, G. Staudt, K.-L. Kratz, B. Pfeiffer, Phys.
Rev. Lett. 87, 202501-1 (2001).
“12C(a,g)16O:
The Key Reaction in Stellar Nucleosynthesis”, R. Kunz, M.
Jaeger, A. Mayer, J.W. Hammer, G. Staudt, S. Harissopulos, T. Paradellis,
Phys. Rev. Lett. 86, 3244 (2001).
“Halo Properties of the First 1/2+ State in 17F
from the 16O(p,g)17F
Reaction”, R. Morlock, R. Kunz, A. Mayer, M. Jaeger, A. Müller,
J.W. Hammer, P. Mohr, H. Oberhummer, G. Staudt, V. Kölle, Phys.
Rev. Lett. 79, 3837 (1997).
“New Possible Laser Media in
the UV and XUV in High Current Heavy Ion Beam Induced Plasmas”,
J.W. Hammer, K. Petkau, T. Griegel, H. Langhoff, M. Mantel, Hyperfine
Interactions 88, 151 (1994).
“SCORPION, the Stuttgart Scattering Facility
for Fast Polarized Neutrons”, J.W. Hammer, G. Bulski, W. Grum,
W. Kratschmer, H. Postner, G. Schleußner, Nucl. Instr. and
Meth. A244, 455 (1986).
“Beam Properties of the 4 MV Dynamitron Accelerator
at Stuttgart”, J.W. Hammer, B. Fischer, H. Hollick, H.P. Trautvetter,
K.U. Kettner, C. Rolfs, M. Wiescher, Nucl. Instr. and Meth. 161,
189 (1979).
“Beam
Transport System for a 4 MV Dynamitron Accelerator”, J.W.
Hammer, H.M. Schüpferling, E. Bergandt, Th. Pflaum, Nucl. Instr.
and Meth. 128, 409 (1975).
- Full curriculum vitae (pdf)
- Please contact physics@nd.edu
if an html or other version is needed.
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