Prof. Achim Richter

Publications on Theory

Analytic approach to nuclear rotational states and the role of spin: A minimal model
W. Bentz, A. Arima, A. Richter, J. Wambach
Phys. Rev. C 89, 024314 (2014)
Rotational states in deformed nuclei: An analytic approach
W. Bentz, A. Arima, J. Enders, A. Richter, J. Wambach
Phys. Rev. C 84, 014327 (2011)
Magnetic dipole probes of the sd and pf shell crossing in the 36,38Ar isotopes
A. F. Lisetskiy, E. Caurier, K. Langanke, G. Martínez-Pinedo, P. von Neumann-Cosel, F. Nowacki, A. Richter
Nucl. Phys. A 789, 114 (2007)
Magnetic Dipole Strength and the T = 0 Proton–Neutron Residual Interaction
R. W. Fearick, P. von Neumann-Cosel, A. Richter, S. J. Q. Robinson, and L. Zamick
J. Phys. Soc. Japan 75, 094201 (2006)
Shell-model test of the rotational-model relation between static quadrupole moments Q(2+1),B(E2)'s, and orbital M1 transitions
S. J. Q. Robinson, A. Escuderos, L. Zamick, P. von Neumann-Cosel, A. Richter, R. W. Fearick
Phys. Rev. C 73, 037306 (2006)
Parameter-free description of orbital magnetic dipole strength
J. Enders, P. von Neumann-Cosel, C. Rangacharyulu, A. Richter
Phys. Rev. C 71, 014306 (2005)
Spectral statistics and the fine structure of the electric pygmy dipole resonance in N = 82 nuclei
J. Enders, T. Guhr, A. Heine, P. von Neumann-Cosel, V. Yu. Ponomarev, A. Richter, J. Wambach
Nucl. Phys. A 741, 3 (2004)
Nature of the scissors mode in nuclei near shell closure: the tellurium isotope chain
E. Guliyev, A.A. Kuliev, P. von Neumann-Cosel, A. Richter
Phys. Lett. B 532, 173 (2002)
Level spacing distribution of scissors mode states in heavy deformed nuclei
J. Enders, T. Guhr, N. Huxel, P. von Neumann-Cosel, C. Rangacharyulu, A. Richter
Phys. Lett. B 486, 273 (2000)
Multiple scales in the fine structure of the isoscalar giant quadrupole resonance in 208Pb
D. Lacroix, A. Mai, P. von Neumann-Cosel, A. Richter, J. Wambach
Phys. Lett. B 479, 15 (2000)
Comprehensive analysis of the scissors mode in heavy even-even nuclei
J. Enders, H. Kaiser, P. von Neumann-Cosel, C. Rangacharyulu, A. Richter
Phys. Rev. C 59, R1851 (1999)
Magnetic dipole response in nuclei at the N = 28 shell closure: a new look
P. von Neumann-Cosel, A. Poves, J. Retamosa, A. Richter
Phys. Lett. B 443, 1 (1998)
Symmetry changing transitions in γ-soft nuclei studied in the interacting boson model
N. Pietralla, P. von Brentano, A. Gelberg, T. Otsuka, A. Richter, N. Smirnova, I. Wiedenhöver
Phys. Rev. C 58, 191 (1998)
Effects of the spin orbit and tensor interactions on the M1 and E2 excitations in light nuclei
M. S. Fayache, P. von Neumann-Cosel, A. Richter, Y. Y. Sharon, L. Zamick
Nucl. Phys. A 627, 14 (1997)
Relation between the Scissors Mode and the Interacting Boson Model Deformation
P. von Neumann-Cosel, J. N. Ginocchio, H. Bauer, A. Richter
Phys. Rev. Lett. 75, 4178 (1995)
Magnetic octupole strength in rare-earth nuclei: A sum-rule approach
C. De Coster, K. Heyde, S. Rambouts, A. Richter
Phys. Rev. C 51, 3510 (1995)
Scaling in the quasielastic response of atomic nuclei
E. Eich, F. Beck, A. Richter
Nucl. Phys. A 572, 57 (1994)
M1 transitions as a probe of the F -spin symmetry in rotational nuclei
O. Engel, A. Richter, H. J. Wörtche
Nucl. Phys. A 565, 596 (1993)
Bayesian statistics and experiments on stochastic variables
V. E. Bunakov, H. L. Harney, A. Richter
Nucl. Phys. A 560, 71 (1993)
Summed magnetic dipole strength as a measure of nuclear monopole properties
K. Heyde, C. De Coster, D. Ooms, A. Richter
Phys. Lett. B 312, 267 (1993)
Scissors mode and nuclear deformation. A phenomenological model independent analysis
N. Lo Iudice, A.Richter
Phys. Lett. B 304, 193 (1993)
Manifestation of quadrupole collectivity in the magnetic dipole strength
K. Heyde, C. De Coster, A. Richter, H.-J. Wörtche
Nucl. Phys. A 549, 103 (1992)
Magnetic dipole spin excitations in rare-earth and actinide nuclei
C. De Coster, K. Heyde, A. Richter
Nucl. Phys. A 542, 375 (1992)
Effects of isoscalar admixtures on the combined analysis of electron-nucleus and proton-nucleus ‘‘scissors mode’’ excitations in the f-p shell
D. C. Zheng, L. Zamick, E. Moya de Guerra, A. Richter
Phys. Rev. C 42, 140 (1990)
Semiclassical description of the scissors mode: Possible improvements and intrinsic limitations
N. Lo Iudice, F. Palumbo, A. Richter, H. J. Wörtche
Phys. Rev. C 42, 241 (1990)
Graphic representation of the interacting boson model parameters in the symmetry triangle
O. Engel, U. Hartmann, A. Richter, H. J. Wörtche
Nucl. Phys. A 515, 159 (1990)
Application of the Multi-Doorway Continuum Shell Model to the Magnetic Dipole Strength Distribution in 58Ni
H. Spangenberger, F. Beck, A. Richter
Annalen der Physik Leipzig 47, 599 (1990)
Orbital magnetic dipole excitations in deformed nuclei and the scissors mode
N. Lo Iudice, A. Richter
Phys. Lett. B 228, 291 (1989)
Limits on the scaling of nucleon magnetic moments in nuclei
T. E. O. Ericson, A. Richter
Phys. Lett. B 183, 249 (1987)
Dispersive effects for the nuclear paramagnetic susceptibility
P. Christillin, A. Richter
Z. Phys. A 326, 1 (1987)
Isovector magnetic quadrupole strengths in 17O
M. Tomaselli, F. Beck, A. Richter
Nucl. Phys. A 459, 279 (1986)
Consistent empirical description of magnetic moments and M1 transitions
W. Knüpfer, W. Müller, B.C. Metsch, A. Richter
Nucl. Phys. A 457, 292 (1986)
Doorway-state analysis of the fragmentation of the magnetic-dipole strength in 58NI observed in high-resolution inelastic electron scattering
H. Spangenberger, F. Beck, A. Richter
Nucl. Phys. A 448, 21 (1986)
Effect of triaxial deformations on the splitting of the M1 isovector rotational state
N. Lo Iudice, E. Lipparini, S. Stringari, F. Palumbo, A. Richter
Phys. Lett. B 161, 18 (1985)
Variational approach to magnetic dipole core polarization: Applications to moments and transitions
E. Lipparini, S. Stringari, A. Richter
Phys. Lett. B 160, 221 (1985)
Splitting of the magnetic dipole giant resonance and triaxial deformation
F. Palumbo, A. Richter
Phys. Lett. B 158, 101 (1985)
Tensor correlations and spin-isospin excitations
A. Abbas, F. Beck, A. Richter
Z. Phys. A 321, 329 (1985)
Mixing of isoscalar and isovector magnetic dipole excitation modes in nuclei
E. Lipparini, A. Richter
Phys. Lett. B 144, 13 (1984)
Doorway-state analysis of the fine structure in the giant quadrupole resonance in 208Pb observed in inelastic electron scattering
J. Winchenbach, K.Pingel, G. Holzwarth, G. Kühner, A. Richter
Nucl. Phys. A 410, 237 (1983)
Proton correlations and the missing M1 strength in 48Ca: A two-state model
W. Knüpfer, B.C. Metsch, A. Richter
Phys. Lett. B 129, 375 (1983)
Magnetic dipole spin-flip excitations in complex nuclei and the virtual Δ-isobar admixture amplitude in Jπ=1+ states
W. Knüpfer, M. Dillig, A. Richter
Phys. Lett. B 122, 7 (1983)
Quenching of magnetic transitions and Δ(1232) degrees of freedom in nuclei: the 48Ca case
A. Härting, W. Weise, H. Toki, A. Richter
Phys. Lett. B 104, 261 (1981)
Elastic enhancement factor in charge exchange reactions
H. L. Harney, H. A. Weidenmüller, A. Richter
Phys. Lett. B 96, 227 (1980)
Quenching of the magnetic multipole strength distribution and of the anomalous magnetic moment in complex nuclei and mesonic renormalization of the nuclear spin current
W. Knüpfer, M. Dillig, A. Richter
Phys. Lett. B 95, 349 (1980)
Comment on the Number of Degrees of Freedom in Fluctuation Analysis
H. L. Harney A. Richter
Phys. Rev. C 2, 421 (1970)
Realistic interaction calculations of (p, n) reactions including tensor knock-out amplitudes
W. G. Love, L. J. Parish, A. Richter
Phys. Lett. B 31, 167 (1970)