Experiments on charm hadroproduction have shown a substantial difference in the production of charm and anticharm hadrons. In this work we study Λ+ c and Λ c inclusive production in p−N interactions in the framework of two component models. We show that the recombination two component model gives a qualitatively and quantitatively good description of Λ c production while the intrinsic charm mod...

In this paper, we generalize to the context of algebras some recent results on existence common hypercyclic vectors for families products backward shift operators. We also give, in a multi-dimensional setting, positive answer question raised by F. Bayart, D. Papathanasiou and author about algebra ℓ1(N) with convolution product family shifts (Bw(λ))λ>0 induced weights wn(λ)=1+λ/n.

problem (Girault, Raviart, 1984) F (λ, U) ≡ U + T ·G(λ, U) = 0 , where Λ ⊂ R is compact interval; X and Y are Banachspaces and T ∈ L(Y,X). Regular branch of solutionsAssume that {(λ, U(λ) |λ ∈ Λ} is such thatF (λ, U(λ)) = 0 for λ ∈ Λ . 1. The set {(λ, U(λ) |λ ∈ Λ} is called branch of solu-tions if the map λ → U(λ) is a continuous functionfrom Λ into X 2. The set {(λ, U(λ) |λ...

Energy development of decaying isotropic turbulence in a 3-D periodic cube with non-rotating or rotating frames of reference is studied through direct numerical simulation using GPU accelerated lattice Boltzmann method. The initial turbulence is isotropic, generated in spectral space with prescribed energy spectrum E(κ)~κm in a range between κmin and ...

Let κ be a regular uncountable cardinal and λ > κ a singular strong limit cardinal. We give a new characterization of the nonstationary subsets of Pκ(λ) and use this to prove that the nonstationary ideal on Pκ(λ) is nowhere precipitous. 0 Introduction Let κ be a regular uncountable cardinal and λ > κ a singular cardinal. Let Iκ,λ (respectively, NSκ,λ) denote the ideal of noncofinal (respectivel...

It is shown that the Λ/Λ cross section ratio in semi-inclusive electroproduction of Λ and Λ hyperons in deep inelastic scattering of charged lepton on a nucleon target, can provide useful information on the quark to Λ fragmentation functions. This ratio is calculated explicitly in a quark-diquark model, a pQCD based analysis, and an SU(3) symmetry model, with three different options for the con...