Results 121 to 130 of about 2,180 (221)
Meson Screening Masses in Thermal QCD
The quark-gluon plasma (QGP) excitations, corresponding to the scalar and pseudoscalar meson quantum numbers, for different temperatures are calculated.
Czerski Piotr
doaj +1 more source
B0 and Bs0 decays into J/ψ f0(980) and J/ψ f0(500) and the nature of the scalar resonances
We describe the B0 and Bs0 decays into J/ψ f0(500) and J/ψ f0(980) by taking into account the dominant process for the weak decay of B0 and Bs0 into J/ψ and a qq¯ component.
W.H. Liang, E. Oset
doaj +1 more source
Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Non-singlet Case [PDF]
We discuss the two and three particle light-cone distribution amplitudes (DAs) of pseudoscalar nonsinglet mesons of twist 3 and 4. Using nonlocal operator identities and conformal expansion, we derive closed expressions for several DAs.
Ball, P
core +1 more source
Chiral Structure of Scalar and Pseudoscalar Mesons [PDF]
45 pages, 7 figures, 7 tables, to appear in Advances in High Energy ...
openaire +4 more sources
Mixing of pseudoscalar-baryon and vector-baryon in meson-baryon interaction and the generation of resonances [PDF]
215 páginas. Tesis Doctoral del Departamento de Física Teórica de la Universidad de Valencia y del Instituto de Física Corpuscular (IFIC).During this Thesis we have used Chiral Perturbation Theory and its extensions with the Hidden Gauge Formalism to ...
Garzón Alama, Eugenio Javier
core
Vector-to-Pseudoscalar and Meson-to-Baryon Ratios in Hadronic Z Decays at LEP [PDF]
Mass dependences of the total production rates per hadronic Z decay of all light-flavour hadrons measured so far at LEP are extrapolated to the zero mass limit (m=0) using phenomenological laws of hadron production related to the spin, isospin ...
Uvarov, V A, Uvarov, V, Vladimir Uvarov
core +1 more source
Based on the predictions of the relevant form factors from the covariant light-front quark model, we show the branching fractions for the $$D (D_s) \rightarrow (P,\,S,\,V,\,A)\,\ell \nu _\ell $$ D ( D s ) → ( P , S , V , A ) ℓ ν ℓ ( $$\ell =e$$ ℓ = e or $
Hai-Yang Cheng, Xian-Wei Kang
doaj +1 more source
Pseudoscalar Mesons Scattering off D*-mesons with Chiral Perturbation Theory
We have systematically calculated the s-wave pseudoscalar mesons and D*- mesons scattering lengths to the third order with chiral perturbation theory, which will be helpful to reveal their strong interaction.
Zhu Shi-Lin +3 more
doaj +1 more source
τ decay into a pseudoscalar and an axial-vector meson [PDF]
We study theoretically the decay τ-→ντP-A, with P- a π- or K- and A an axial-vector resonance b1(1235), h1(1170), h1(1380), a1(1260), f1(1285) or any of the two poles of the K1(1270). The process proceeds through a triangle mechanism where a vector meson
Dai, L.R. +4 more
core +1 more source
Composition of the pseudoscalar η and η′ mesons [PDF]
The composition of the eta and eta' mesons has long been a source of discussion and is of current interest with new experimental results appearing. We investigate what can be learnt from a number of different processes: V to P gamma and P to V gamma (V and P are light vector and pseudoscalar mesons respectively), P to gamma gamma, J/psi,psi' to P gamma,
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