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Showing 1 to 5 of 5 for “"isospin symmetry"”.
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Green's function Monte Carlo calculations of few-nucleon systems
… with the goal of accurately reproducing isospin symmetry breaking effects in the nuclear interaction. We briefly discuss the motivation for this potential, called Argonne $v\sb{18},$ as well as the Urbana models of three-nucleon interactions. Our approach for modeling the ground states of …
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Fragmentation and nucleon structure in semi-inclusive deep-inelastic scattering at the HERMES experiment
… breaking. This evidence weakens somewhat when isospin invariance of the fragmentation functions is assumed to be broken. Additionally, the multiplicities for the semi-inclusive production of π0 mesons in deep-inelastic scattering are presented as a function of z. These multiplicities were …
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Group theoretical approach to pairing and non-linear phenomena in atomic nuclei
… substructures that enter are associated with isospin symmetry and with identical-particle and pn pairing. We suggest a non-deformed as well as a q-deformed algebraic descriptions of pairing for even-A nuclei of the mass 32 < A < 164 region. A Hamiltonian with a symplectic dynamical symmetry is …
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NUCLEAR COLLECTIVE MODES AT FINITE TEMPERATURE AS A PROBE OF NUCLEAR STRUCTURE AND DYNAMICS
… (CN). In fact, DD oscillation is ruled by the symmetry term of the nuclear force that drives the proton and neutron densities toward a configuration which minimizes the potential energy of the system. The hindrance of isospin-forbidden GDR gamma decay from a self-conjugate CN is due to a …
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Measurement of the Partial Widths Ratio Gamma(Ds*+ -> Ds+ pi0) / Gamma(Ds*+ -> Ds+ gamma) at the BABAR Experiment
Unter Benutzng von 90.4/fb Daten, die das BABAR-Experiment in den Jahren 1999 bis 2002 genommen hat, wurden die Zerfälle Ds*+ -> Ds+ pi0 und Ds*+ -> Ds+ gamma mit zwei verschiedenen Methoden rekonstruiert. Die Rekonstruktions-Effizienzen wurden mittels Signal-Monte Carlo-Ereignissen und …