Simplified Bethe-Salpeter Description of Basic Pseudoscalar-Meson Features
EPJ Web of Conferences, 2018 We assess a description of pseudoscalar mesons as pseudo-Goldstone bosons by its compatibility with some Gell-Mann-Oakes-Renner-type relation.
Lucha Wolfgang
doaj +2 more sources
Goldstone-Type Pseudoscalar Mesons: Instantaneous Bethe–Salpeter Models
EPJ Web of Conferences, 2017 A nontrivial instantaneous variant of the Bethe–Salpeter formalism allows us to discuss massless pseudoscalar mesons from a configuration-space-potential point of view.
Lucha Wolfgang
doaj +3 more sources
Janus-Facedness of the Pion: Analytic Instantaneous Bethe–Salpeter Models
EPJ Web of Conferences, 2016 Inversion enables the construction of interaction potentials underlying—under fortunate circumstances even analytic—instantaneous Bethe–Salpeter descriptions of all lightest pseudoscalar mesons as quark–antiquark bound states of Goldstone-boson nature.
Lucha Wolfgang
doaj +3 more sources
Impact of a physical activity program on the health-related quality of life in pediatric cancer patients: a study protocol [PDF]
Frontiers in Sports and Active LivingPhysical activity is essential for the health and well-being of children and adolescents. However, those living with cancer often experience reduced physical activity levels, which negatively impact their functional capacity and health-related quality of
Gustavo Galárraga +12 more
doaj +2 more sources
Bethe–Salpeter Bound-State Solutions: Examining Semirelativistic Approaches [PDF]
EPJ Web of Conferences, 2022 Within the formalism of relativistic quantum field theory an adequate framework for the description of two-particle bound states, such as, for instance, all conventional (i.e., non-exotic) mesons, is provided by the Poincaré-covariant homogeneous Bethe ...
Lucha Wolfgang
doaj +1 more source
Semirelativistic Potential Modelling of Bound States: Advocating Due Rigour [PDF]
EPJ Web of Conferences, 2022 The Poincaré-covariant quantum-field-theoretic description of bound states by the homogeneous Bethe–Salpeter equation usually exhibits an intrinsic complexity that can be attenuated by allowing this formalism to undergo various simplifications.
Lucha Wolfgang
doaj +1 more source
Descentrada, 2023 Lectura crítica de Fernández Cordero, Laura (2021). Feminismos para la revolución. Antología de 14 mujeres que desafiaron los límites de las izquierdas.
Melody Lucha
doaj +1 more source
Examining a syndemic framework for HIV and sexually transmitted infections Risk in Cali, Colombia.
Hacia la Promoción de la Salud, 2020 Objective: We examined the role played by four psychosocial conditions: forced sex, early sexual initiation, and misuse of alcohol and illicit drugs on the risk of HIV and sexually transmitted infections in Cali-Colombia between 2013 and 2015.
Hector Fabio Mueses Marín +4 more
doaj +1 more source
Instantaneous Bethe-Salpeter Equation: Analytic Approach for Nonvanishing Masses of the Bound-State Constituents [PDF]
, 2000 The instantaneous Bethe-Salpeter equation, derived from the general Bethe-Salpeter formalism by assuming that the involved interaction kernel is instantaneous, represents the most promising framework for the description of hadrons as bound states of ...
Franz F. Schöberl +11 more
core +3 more sources
Energy bounds for the spinless Salpeter equation [PDF]
, 2001 We study the spectrum of the spinless-Salpeter Hamiltonian H = \beta \sqrt{m^2 + p^2} + V(r), where V(r) is an attractive central potential in three dimensions. If V(r) is a convex transformation of the Coulomb potential -1/r and a concave transformation
Franz F. Schöberl +10 more
core +3 more sources