Results 31 to 40 of about 181,941 (293)
Color polymorphism in Anemone coronaria: Correlations with soil, climate, and flowering phenology
American Journal of Botany, EarlyView.Abstract Premise Flower color polymorphism (FCP) is thought to be driven by multiple selection agents. Although widely associated with visual attraction of multiple pollinators, FCP is also often correlated with abiotic factors. We explored the links between abiotic conditions, flowering phenology, and FCP in the winter‐flowering geophyte Anemone ...
Tzlil Labin +4 more
wiley +1 more source
Excitation Spectrum in the Friedberg-Lee Model [PDF]
, 2001 The excitation spectrum of the nucleon with the spin 1/2 is examined by using the Friedberg-Lee model containing the constituent quark and the scalar meson. An appropriate way of quantization for the non-linear meson field is employed by taking account
Arima, M., Kowata, H.
core +3 more sources
Progress of Theoretical Physics, 1953 Recently O'Ceallalghl ) has found m the cosmic ray a new heavy meson (x-meson), which seems todistntegrate mto one charged J.I-meson and one or more neutral particles_ He also has found the lifetime of a new particle IS about 10-9 . sec. As the experimental facts seem to indicate us that x-meson distntegrates at least into three seccndary particles, we
openaire +2 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley +1 more source
Meson spectroscopy and properties using Dyson-Schwinger equations [PDF]
, 2006 We study pseudoscalar and scalar mesons using a practical and symmetry preserving truncation of QCD's Dyson-Schwinger equations. We investigate and compare properties of ground and radially excited meson states.
A. KRASSNIGG +5 more
core +2 more sources
Astronomische Nachrichten, EarlyView.ABSTRACT We investigate the effects of a minimal measurable length on neutron stars, within the quantum hadrodynamics (QHD‐I) model modified by the Generalized Uncertainty Principle (GUP). Working in a deformed Poisson algebra framework, we incorporate GUP effects via a time‐invariant transformation of the phase space volume, effectively reducing the ...
João Gabriel Galli Gimenez +2 more
wiley +1 more source
Confining Bond Rearrangement in the Random Center Vortex Model
, 2016 We present static meson-meson and baryon--anti-baryon potentials in Z(2) and Z(3) random center vortex models for the infrared sector of Yang-Mills theory, i.e., hypercubic lattice models of random vortex world-surfaces.
Altarawneh, Derar +2 more
core +1 more source
Isospin dependence of the eta prime meson production in nucleon-nucleon collisions [PDF]
, 2008 A comparison of the close-to-threshold total cross section for the eta prime production in pp --> pp eta prime and pn --> pn eta prime reactions constitutes a tool to investigate the eta prime meson structure and the reaction mechanism in the channels of
A. BUDZANOWSKI +27 more
core +2 more sources
Measurement of branching fractions for D meson decaying into ϕ meson and a pseudoscalar meson
Physics Letters B, 2019 The four decay modes $D^{0}\to ^{0}$, $D^{0}\to $, $D^{+}\to ^{+}$, and $D^{+}\to K^{+}$ are studied by using a data sample taken at the centre-of-mass energy $\sqrt{s} = 3.773$~GeV~with the BESIII detector, corresponding to an integrated luminosity of 2.93 fb$^{-1}$. The branching fractions of the first three decay modes are measured to be ${
Z.L. Hou +236 more
openaire +12 more sources
Meson-meson interactions in a nonperturbative chiral approach [PDF]
Physical Review D, 1999 27 pages, 12 figures.
Oller, JA +2 more
openaire +6 more sources