منابع مشابه
Dispersion relations in quantum hadrodynamics with a finite cutoff
In the past two decades, nuclei and nuclear matter have been studied in the framework of quantum hadrodynamics (QHD).[1, 2] The meson mean-field theory of nuclear matter[1] has produced successful results to account for the saturation properties at normal nuclear density. Following these successes, many studies and modifications have been performed on relativistic nuclear models. One of these m...
متن کاملFermionic dispersion relations at finite temperature and non-vanishing chemical potentials in the minimal standard model
We calculate the fermionic dispersion relations in the minimal standard model at finite temperature in presence of non-vanishing chemical potentials due to the CP-asymmetric fermionic background. The dispersion relations are calculated for a vacuum expectation value of the Higgs field equal to zero (unbroken electroweak symmetry). The calculation is performed in the real time formalism of the t...
متن کاملParapositronium Decay and Dispersion Relations
Positronium decay rates are computed at the one-loop level, using convolutiontype factorized amplitudes. The dynamics of this factorization is probed with dispersion relations, showing that unallowed approximations are usually made, and some O ( α ) corrections missed. Further, we discuss the relevance of the Schrödinger wavefunction as the basis for perturbative calculations. Finally, we apply...
متن کاملGeneralized commutation relations and DSR theories, a close relationship
A revision of generalized commutation relations is performed, beside a description of Deformed Special Relativity (DSR) theories. It is demonstrated that these propositions are very closely related, specially Magueijo Smolin momenta and Kempf et al. and L.N. Chang generalized commutators. Due this, a new algebra arise with its own features that is also analyzed.
متن کاملDispersion Relations in Ultradegenerate Relativistic Plasmas
The propagation of excitation modes in a relativistic ultradegenerate plasma is modified by their interactions with the medium. These modifications can be computed by evaluating their on-shell self-energy, which gives (gaugeindependent) dispersion relations. For modes with momentum close to the Fermi momentum, the one-loop fermion self-energy is dominated by a diagram with a soft photon in the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 2020
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2020.135735