Kaon Electromagnetic Form Factor in a Veneziano-Type Representation

1972 ◽  
Vol 50 (14) ◽  
pp. 1652-1655 ◽  
Author(s):  
T. C. Chia
Keyword(s):  
Form Factor ◽  
Simple Form ◽  
Electromagnetic Form Factor ◽  
Form Factors ◽  
High Energy ◽  
Scattering Data ◽  
Type Representation ◽  
Scaling Hypothesis

A simple form of kaon electromagnetic form factor in a Veneziano-type representation is investigated. With the conjecture of Yang et al. and Elitzur's scaling hypothesis for hadronic form factors, the kaon form factor is linked to and compared with high energy K + P → K + P and K + P → K*P scattering data. The results are found to be satisfactory.

scholarly journals Baryon Form Factors at BESIII

2019 ◽  
Vol 212 ◽  
pp. 07001 ◽  
Author(s):  
Kai Zhu
Keyword(s):  
Form Factor ◽  
Electromagnetic Form Factor ◽  
Energy Region ◽  
Recent Progress ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Short Discussion ◽  
Mass System ◽  
System Energy

In this talk I present recent progress on the studies of baryon form factors at BESIII, including the measurements of the time-like proton electromagnetic form factor via e+e−→ pp̅ in the center-mass-system energy region 2.0 −3.08 GeV, as well as the electromagnetic form factors of Λ and Λc, respectively. These results are followed by a short discussion about the prospects of the BESIII program in this area.

scholarly journals ON PERTURBATIVE QCD OF HARD AND SOFT PROCESSES

2009 ◽  
Vol 24 (35n37) ◽  
pp. 2803-2824 ◽  
Author(s):  
A. V. EFREMOV ◽  
A. V. RADYUSHKIN
Keyword(s):  
Form Factor ◽  
Perturbative Qcd ◽  
Electromagnetic Form Factor ◽  
High Energy ◽  
Large Momentum ◽  
Pion Electromagnetic Form Factor ◽  
Twist Operators ◽  
Energy Processes ◽  
Soft Processes ◽  
Pion Electromagnetic Form

We discuss some problems concerning the application of perturbative QCD to high energy processes. In particular for hard processes, we analyze higher order and higher twist corrections. It is argued that these effects are of great importance for understanding the behaviour of pion electromagnetic form factor at moderately large momentum transfers. For soft processes, we show that summing the contributions of the lowest twist operators leads to a Regge-like amplitude.

scholarly journals Electromagnetic Form Factor of Doubly-Strange Hyperon

Symmetry ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 65
Author(s):  
Xiongfei Wang ◽  
Guangshun Huang
Keyword(s):  
Form Factor ◽  
Standard Model ◽  
Pair Production ◽  
Theoretical Investigation ◽  
Electromagnetic Form Factor ◽  
Particle Physics ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
The Standard Model ◽  
Quark Models

The standard model of particle physics is a well-tested theoretical framework, but there are still some issues that deserve experimental and theoretical investigation. The Ξ resonances with strangeness S=−2, the so-called doubly-strange hyperon, can provide important information to further test the standard model by studying their electromagnetic form factors, such as probing the limitation of the quark models and spotting unrevealed aspects of the QCD description of the structure of hadron resonances. In this work, we review some recent studies of the electromagnetic form factors on doubly-strange hyperons in pair production from positron–electron annihilation experiment.

Scattering from laterally heterogeneous vesicles. II. The form factor

2007 ◽  
Vol 40 (3) ◽  
pp. 513-525 ◽  
Author(s):  
Vinicius N. P. Anghel ◽  
Norbert Kučerka ◽  
Jeremy Pencer ◽  
John Katsaras
Keyword(s):  
Form Factor ◽  
General Theory ◽  
Neutron Scattering ◽  
Form Factors ◽  
Model Membranes ◽  
Scattering Data ◽  
Annular Domains ◽  
Lateral Segregation

Despite growing interest in the formation of domains or `rafts' in cell and model membranes, there have been relatively few attempts to characterize such systemsviascattering techniques. Previously [Penceret al.(2006).J. Appl. Cryst.39, 293–303], it was demonstrated that the Porod invariant,Q, could be used to detect lateral segregation. Here, the general theory for scattering from laterally heterogeneous vesicles is outlined and form factors are derived for vesicles containing either single circular or annular domains. These form factors are then applied to the analysis of neutron scattering data from heterogeneous vesicles. Potential advantages and limitations of this technique are also discussed.

Electromagnetic form factor of Ds∗ meson from Nf = 2 twisted mass lattice QCD

2019 ◽  
Vol 34 (30) ◽  
pp. 1950194 ◽  
Author(s):  
Ning Li ◽  
Ya-Jie Wu
Keyword(s):  
Form Factor ◽  
Quantum Chromodynamics ◽  
Electromagnetic Form Factor ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Lattice Quantum Chromodynamics ◽  
Twisted Mass ◽  
Lattice Quantum ◽  
Ds Meson ◽  
Twisted Boundary Conditions

We investigate the electromagnetic form factor of [Formula: see text] meson using [Formula: see text] twisted mass lattice quantum chromodynamics gauge configurations. The numerical simulations are carried out under twisted boundary conditions which are helpful to increase the resolution in momentum space. We determine electromagnetic form factors with more small four-momentum transfer, and further fit the charge radius for [Formula: see text] meson.

Electromagnetic Form Factor of the Pion

1970 ◽  
Vol 24 (6) ◽  
pp. 294-296 ◽  
Author(s):  
Ira S. Gerstein ◽  
Kurt Gottfried ◽  
Kerson Huang
Keyword(s):  
Form Factor ◽  
Electromagnetic Form Factor
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