Results 21 to 30 of about 98,500 (263)

$$X_1(2900)$$ X 1 ( 2900 ) as a $$\bar{D}_1 K$$ D ¯ 1 K molecule

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The analyses of the LHCb data on X(2900) in the $$D^- K^+$$ D - K + spectrum are performed. Both dynamically generated and explicitly introduced $$X_1(2900)$$ X 1 ( 2900 ) are considered.
Hao Chen, Hong-Rong Qi, Han-Qing Zheng
doaj   +1 more source

Equilibria and Bogdanov-Takens Bifurcation Analysis in the Bazykin’s Predator-Prey System

open access: yesDiscrete Dynamics in Nature and Society, 2022
In the paper, we proposed a Bazykin’s predator-prey system to explore the equilibrium point and Bogdanov-Takens bifurcation problems. Firstly, we derived some key parameter threshold conditions to ensure that the Bazykin’s predator-prey system had a ...
Shuangte Wang, Hengguo Yu
doaj   +1 more source

Engineering Higgs dynamics by spectral singularities

open access: yesPhysical Review Research, 2023
We generalize the dynamical phase diagram of a Bardeen-Cooper-Schrieffer condensate, considering attractive to repulsive, i.e., critical quenches (CQs) and a nonconstant density of states (DOS).
H. P. Ojeda Collado   +2 more
doaj   +1 more source

Around the Cusp Singularity and the Breaking of Waves [PDF]

open access: yesLeonardo, 2014
WAVES is an “Art-Science” project on water surface waves. The authors aim to visualize the behaviour of water waves during their evolution: generation, focusing and breaking. Relying on the general property of waves to focus when properly generated or reflected, the authors use a parabolically shaped wave maker to focus water waves in a region of the ...
Tejerina Risso, Javiera, Le Gal, Patrice
openaire   +3 more sources

On nonhomogeneous boundary value problem for the stationary Navier-Stokes equations in a symmetric cusp domain

open access: yesMathematical Modelling and Analysis, 2021
The nonhomogeneous boundary value problem for the stationary NavierStokes equations in 2D symmetric multiply connected domain with a cusp point on the boundary is studied. It is assumed that there is a source or sink in the cusp point.
Kristina Kaulakytė, Neringa Klovienė
doaj   +1 more source

Bogdanov–Takens bifurcation of a Holling IV prey–predator model with constant-effort harvesting

open access: yesJournal of Inequalities and Applications, 2021
A prey–predator model with constant-effort harvesting on the prey and predators is investigated in this paper. First, we discuss the number and type of the equilibria by analyzing the equations of equilibria and the distribution of eigenvalues.
Lifang Cheng, Litao Zhang
doaj   +1 more source

Calorimetry of a Bose–Einstein-condensed photon gas

open access: yesNature Communications, 2016
Phase transitions are often revealed by a discontinuous behaviour of thermodynamic quantities. Here, the authors study the thermodynamic behaviour of a trapped 2D photon gas, revealing critical behaviour at the phase transition through a cusp singularity
Tobias Damm   +6 more
doaj   +1 more source

Cluster observations of the midaltitude cusp under strong northward interplanetary magnetic field [PDF]

open access: yes, 2008
We report on a multispacecraft cusp observation lasting more than 100 min. We determine the cusp boundary motion and reveal the effect on the cusp size of the interplanetary magnetic field (IMF) changing from southward to northward.
Reme, Henri   +17 more
core   +1 more source

A Moonshine Dialogue in Mathematical Physics

open access: yesMathematics, 2015
Phys and Math are two colleagues at the University of Saçenbon (Crefan Kingdom), dialoguing about the remarkable efficiency of mathematics for physics. They talk about the notches on the Ishango bone and the various uses of psi in maths and physics; they
Michel Planat
doaj   +1 more source

The topology associated with cusp singular points

open access: yesNonlinearity, 2012
In this paper we investigate the global geometry associated with cusp singular points of two-degree of freedom completely integrable systems. It typically happens that such singular points appear in couples, connected by a curve of hyperbolic singular points.
Konstantinos, Efstathiou   +1 more
openaire   +4 more sources

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