نتایج جستجو برای: ψ
تعداد نتایج: 8567 فیلتر نتایج به سال:
Measurement of ψ(2S) meson production in pp collisions at √ s = 7 TeV Abstract The differential cross-section for the inclusive production of ψ(2S) mesons in pp collisions at √ s = 7 TeV has been measured with the LHCb detector. The data sample corresponds to an integrated luminosity of 36 pb −1. The ψ(2S) mesons are reconstructed in the decay channels ψ(2S) → μ + μ − and ψ(2S) → J /ψπ + π − , ...
ψ-extension of Gian-Carlo Rota's finite operator calculus due to Viskov [1, 2] is further developed. The extension relies on the notion of ∂ ψ-shift invariance and ∂ ψ-delta operators. Main statements of Rota's finite operator calculus are given their ψ-counterparts. This includes Sheffer ψ-polynomials properties and Rodrigues formula-among others. Such ψ-extended calculus delivers an elementar...
We introduce a tropical geometric framework that allows us to define $\psi$ classes for moduli spaces of curves arbitrary genus. prove correspondence theorems between algebraic and some one-dimensional families genus-one curves.
The Ward solution of ψ-difference calculus nonhomogeneous equation ∆ ψ f = ϕ ϕ =? is found in the form of f (x) = n≥1 B n n ψ ! ϕ (n−1) (x) + ψ ϕ(x) + p(x) (where B n denote ψ-Bernoulli-Ward numbers [1])-in the framework of the ψ-Finite Operator Calculus [2]-[5]. Specifications to q-calculus case and the new Fibonomial calculus case [5, 6] are made explicit. At first let us anticipate with ψ-re...
Using an open thermodynamic systems theory, the effect of particle creation on evolution and dynamics standard cosmological FLRW model in a higher-dimensional spacetime with functionally dependent gravitational constants Λ G is investigated. The field equations have been transformed into dimensionless system non-linear, first-order, coupled differential (DEs) as functions universe’s density par...
We prove the existence and uniqueness of L p -variational solution, with > 1, following multivalued backward stochastic differential equation -integrable data: {− dY t + ∂ y Ψ( t,Y )d Q ∋ H ( ,Z − Z d B ,0≤ <τ, Y τ = η , where is a stopping time, progressively measurable increasing continuous process Ψ subdifferential convex lower semicontinuous function ↦Ψ( ). In framework [14] (the case...
The ψ = ψ(3770) resonance is expected to be mainly cc̄(1D1), but tensor forces and coupling to charmed particle pairs can mix it with ψ(2S1) and other states. Implications of this mixing for decays of ψ to non-charmed final states are discussed. (i) The ratio Γ(ψ → γ + χc2)/Γ(ψ′′ → γ + χc0) is expected to be highly suppressed if ψ is a pure D-wave state, and is enchanced by mixing. (ii) The expe...
Using a sample of 1.31×109 J/ψ events collected with the BESIII detector, we perform study J/ψ→γηηη′ to search for X(2370) and ηc in ηηη′ invariant mass distribution. No significant signal is observed, set an upper limit product branching fraction B(J/ψ→γX(2370)·B(X(2370)→ηηη′)<9.2×10−6 at 90% confidence level. A clear observed first time, yielding B(J/ψ→γηc)·B(ηc→ηηη′)=(4.86±0.62(stat)±0.45(sy...
and Applied Analysis 3 In scientific and engineering computations, many eigenvalue problems have the following first type of mixed variational formulation: find λ, u, σ ∈ R × V × W , u, σ / 0, 0 , such that a ( u, ψ ) b ( ψ, σ ) λ ( u, ψ ) D, ∀ψ ∈ V, 2.3 b u, v 0, ∀v ∈ W. 2.4 In order to solve problem 2.3 2.4 , one should construct finite element spaces Vh ⊂ V and Wh ⊂ W . Restricting 2.3 2.4 o...
The inclusive S−wave charmonium production rates in B decays are considered using the Bodwin-Braaten-Lepage (BBL) approach, including the relativistic corrections and the color-octet mechanism suggested as a possible solution to the ψ ′ puzzle at the Tevatron. We first consider relativistic and radiative corrections to J/ψ → ee and J/ψ → Light Hadrons (LH), in order to determine two nonperturba...
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