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

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.

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The pion form factor from twisted-mass lattice quantum chromodynamics

Canadian Journal of Physics ◽

10.1139/p06-029 ◽

2006 ◽

Vol 84 (6-7) ◽

pp. 661-668

Author(s):

A M Abdel-Rehim ◽

R Lewis

Keyword(s):

Form Factor ◽

Quantum Chromodynamics ◽

Lattice Qcd ◽

Pion Form Factor ◽

Explicit Computation ◽

Lattice Quantum Chromodynamics ◽

Zero Modes ◽

Twisted Mass ◽

Lattice Quantum ◽

Insight Into

The pion form factor offers insight into the transition from perturbative to nonperturbative quantum chromodynamics (QCD), and is of current experimental interest. Twisted-mass lattice QCD is a method for eliminating unphysical zero modes from Wilson lattice simulations; it also allows for removal of the leading lattice spacing artifacts through a momentum-averaging prescription. In our study of the pion form factor, we performed the first explicit computation with momentum averaging in twisted-mass lattice QCD, and the first use of the GMRES-DR algorithm for twisted fermion matrix inversion.PACS No.: 12.38.Gc

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K0 and K+ -meson electromagnetic form factors: A nonperturbative relativistic quark model versus experimental, perturbative, and lattice quantum-chromodynamics results

Physical Review D ◽

10.1103/physrevd.104.034015 ◽

2021 ◽

Vol 104 (3) ◽

Author(s):

S. V. Troitsky ◽

V. E. Troitsky

Keyword(s):

Quantum Chromodynamics ◽

Quark Model ◽

Form Factors ◽

Electromagnetic Form Factors ◽

Relativistic Quark Model ◽

Lattice Quantum Chromodynamics ◽

K Meson ◽

Lattice Quantum ◽

Model Versus

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THE ELECTROMAGNETIC FORM FACTOR OF THE PION: RESULTS FROM THE LATTICE

International Journal of Modern Physics E ◽

10.1142/s0218301313300300 ◽

2013 ◽

Vol 22 (12) ◽

pp. 1330030 ◽

Cited By ~ 7

Author(s):

BASTIAN B. BRANDT

Keyword(s):

Form Factor ◽

Quantum Chromodynamics ◽

Quality Criteria ◽

Vector Form ◽

Physical Point ◽

Lattice Quantum Chromodynamics ◽

Lattice Quantum ◽

Future Challenges ◽

Recent Developments ◽

Systematic Effects

This review contains an overview over recent results for the electromagnetic iso-vector form factor of the pion obtained in lattice quantum chromodynamics (QCD) with dynamical fermions. Particular attention is given to the extrapolation to the physical point and an easy assessment of the control over the main systematic effects by imposing quality criteria and an associated sign code, similar to the ones used by the FLAG working group. Also included is a brief discussion of recent developments and future challenges concerning the accurate extraction of the form factor in the lattice framework.

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Baryon Form Factors at BESIII

EPJ Web of Conferences ◽

10.1051/epjconf/201921207001 ◽

2019 ◽

Vol 212 ◽

pp. 07001 ◽

Cited By ~ 1

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.

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Electromagnetic Form Factor of Doubly-Strange Hyperon

Symmetry ◽

10.3390/sym14010065 ◽

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.

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Lattice QCD on GPU clusters, using the QUDA library and the Chroma software system

The International Journal of High Performance Computing Applications ◽

10.1177/1094342011429695 ◽

2012 ◽

Vol 26 (4) ◽

pp. 386-398 ◽

Cited By ~ 2

Author(s):

Bálint Joó ◽

Mike A. Clark

Keyword(s):

Quantum Chromodynamics ◽

Graphics Processing Units ◽

Lawrence Livermore National Laboratory ◽

National Laboratory ◽

Application Framework ◽

Software System ◽

Nuclear Forces ◽

Lattice Quantum Chromodynamics ◽

Lattice Quantum ◽

Strong Scaling

The QUDA library for optimized lattice quantum chromodynamics using GPUs, combined with a high-level application framework such as the Chroma software system, provides a powerful tool for computing quark propagators, a key step in current calculations of hadron spectroscopy, nuclear structure, and nuclear forces. In this contribution we discuss our experiences, including performance and strong scaling of the QUDA library and Chroma on the Edge Cluster at Lawrence Livermore National Laboratory and on various clusters at Jefferson Lab. We highlight some scientific successes and consider future directions for graphics processing units in lattice quantum chromodynamics calculations.

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