Results 31 to 40 of about 3,790,708 (163)

New Insight on Damped Oscillating Regular Structures from “Effective” Proton Electromagnetic Form Factor Data

open access: yesAppliedMath
An objective existence of damped oscillation regular structures from the proton “effective” electromagnetic form factor data, appearing when these data are described by a two parametric Tomasi-Gustafsson-Rekalo function, is investigated. If the same data
Stanislav Dubnička   +3 more
doaj   +1 more source

Symmetry- Preserving Contact Interaction Approaches: An Overview of Meson and Diquark Form Factors

open access: yesParticles
We present an updated overview of the symmetry-preserving contact interaction model in hadronic physics, which was developed a little over a decade ago to describe the mass spectrum and internal structure of mesons and diquarks composed of light and ...
Laura Xiomara Gutiérrez-Guerrero   +1 more
doaj   +1 more source

Asymptotics of density distributions, momentum distributions and form factors of three-nucleon nuclei [PDF]

open access: yesЯдерна фізика та енергетика, 2010
The structure functions of three-nucleon nuclei 3H and 3He are investigated, and asymptotics of density distributions of nucleons at large distances are established using bound state wave functions with high precision.
D. V. Piatnytskyi, I. V. Simenog
doaj  

Baculovirus Per Os Infectivity Factors Form a Complex on the Surface of Occlusion-Derived Virus

open access: yes, 2010
Five highly conserved per os infectivity factors, PIF1, PIF2, PIF3, PIF4, and P74, have been reported to be essential for oral infectivity of baculovirus occlusion-derived virus (ODV) in insect larvae.
Hu, Z.   +6 more
core   +1 more source

Electromagnetic form factors of hadrons [PDF]

open access: yes, 1975
A vector meson dominance model of the electromagnetic form factors of hadrons is developed which is based on the use of unstable particle propagators. Least-square fits are made to the proton, neutron, pion and kaon form factor data in both the space and
Zidell, V. S., Zidell, Vaughn
core   +1 more source

Determining the best form factor formula for Loblolly Pine (Pinus taeda L.) plantations at the age of 18, in Guilan- northern Iran

open access: yesCaspian Journal of Environmental Sciences, 2008
In order to determine the best form factor formula for Loblolly Pine (Pinus taeda L.) plantations in Talesh (Western Guilan province-Iran), a number of 110 trees were selected based on their distribution in diameter classes, from 12 to 34 cm (in a two ...
Fadaei, F.   +3 more
doaj  

A Vertex Operator Approach for Form Factors of Belavin's (Z/nZ)-Symmetric Model and Its Application

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
A vertex operator approach for form factors of Belavin's (Z/nZ)-symmetric model is constructed on the basis of bosonization of vertex operators in the A_{n−1}^{(1)} model and vertex-face transformation.
Yas-Hiro Quano
doaj   +1 more source

Dispersive representation and shape of the Kl3 form factors: robustness

open access: yes, 2009
An accurate low-energy dispersive parametrization of the scalar Kpi form factor was constructed some time ago in terms of a single parameter guided by the Callan-Treiman low-energy theorem.
Stern, J.   +7 more
core   +1 more source

Rescattering effects in nucleon-to-meson form factors and application to tau-lepton-induced proton decay [PDF]

open access: yes, 2023
Nucleon decays put extremely stringent bounds on baryon-number-violating interactions. However, in case the corresponding operators involve only τ leptons, the direct two-body decays, e.g., are kinematically not allowed and nucleon decay can only proceed
Crivellin, Andreas   +5 more
core   +1 more source

The kaon semileptonic form factor with near physical domain wall quarks

open access: yes, 2013
We present a new calculation of the K → π semileptonic form factor at zero momentum transfer in domain wall lattice QCD with N f = 2+1 dynamical quark flavours. By using partially twisted boundary conditions we simulate directly at the phenomenologically
Sivalingam, K.   +17 more
core   +1 more source

Home - About - Disclaimer - Privacy