Zobrazeno 1 - 10
of 2 536
pro vyhledávání: '"Weise, W"'
A formalism for treating the scattering of decuplet baryons in chiral effective field theory is developed. The minimal Lagrangian and potentials in leading-order SU(3) chiral effective field theory for the interactions of octet baryons ($B$) and decu
Externí odkaz:
http://arxiv.org/abs/1708.08071
Brueckner theory is used to investigate the in-medium properties of a $\Lambda$-hyperon in nuclear and neutron matter, based on hyperon-nucleon interactions derived within SU(3) chiral effective field theory (EFT). It is shown that the resulting $\La
Externí odkaz:
http://arxiv.org/abs/1612.03758
Publikováno v:
Eur. Phys. J. A (2016) 52: 15
Brueckner theory is used to investigate the properties of hyperons in nuclear matter. The hyperon-nucleon interaction is taken from chiral effective field theory at next-to-leading order with SU(3) symmetric low-energy constants. Furthermore, the und
Externí odkaz:
http://arxiv.org/abs/1507.08808
Publikováno v:
Phys. Rev. D 89, 014026 (2014)
Recent lattice QCD simulations of the scattering lengths of Nambu-Goldstone bosons off the $D$ mesons are studied using unitary chiral perturbation theory. We show that the Lattice QCD data are better described in the covariant formulation than in th
Externí odkaz:
http://arxiv.org/abs/1309.4743
This presentation reviews an approach to nuclear many-body systems based on the spontaneously broken chiral symmetry of low-energy QCD. In the low-energy limit, for energies and momenta small compared to a characteristic symmetry breaking scale of or
Externí odkaz:
http://arxiv.org/abs/1304.6350
Publikováno v:
Nucl. Phys. A 915 (2013) 24-58
Results for the Lambda N and Sigma N interactions obtained at next-to-leading order in chiral effective field theory are reported. At the order considered there are contributions from one- and two-pseudoscalar-meson exchange diagrams and from four-ba
Externí odkaz:
http://arxiv.org/abs/1304.5339
Publikováno v:
Phys. Rev. C 88, 024614 (2013)
The energy- and density-dependent single-particle potential for nucleons is constructed in a medium of infinite isospin-symmetric nuclear matter starting from realistic nuclear interactions derived within the framework of chiral effective field theor
Externí odkaz:
http://arxiv.org/abs/1304.3175
We present a microscopic calculation of the complete quasiparticle interaction, including central as well as noncentral components, in neutron matter from high-precision two- and three-body forces derived within the framework of chiral effective fiel
Externí odkaz:
http://arxiv.org/abs/1209.5296
We review recent progress in implementing high-precision chiral two- and three-body forces in nuclear many-body systems beyond light nuclei. We begin with applications to finite nuclei, which we study through the nuclear shell model and self-consiste
Externí odkaz:
http://arxiv.org/abs/1111.5990
We derive the effective interaction between two quasiparticles in symmetric nuclear matter resulting from the leading-order chiral three-nucleon force. We restrict our study to the L=0,1 Landau parameters of the central quasiparticle interaction comp
Externí odkaz:
http://arxiv.org/abs/1111.1924