Chiral structure of nucleon gravitational form factors

Belitsky, Andrei; Ji, Xiangdong

doi:10.1016/s0370-2693(02)02025-7

Cited by 71 publications

(89 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In some cases, the effects of the -resonances have also been investigated. Similar studies on the form factors of the QCD energymomentum tensor have been done (45,46) in the theory with two light flavors. I briefly summarize the results here.…”

Section: Chiral Properties Of Gpdsmentioning

confidence: 55%

See 1 more Smart Citation

Generalized Parton Distributions

2004

Annu. Rev. Nucl. Part. Sci.

157

145

View full text Add to dashboard Cite

Key Words nucleon structure, quantum phase-space distributions, form factors, nucleon spin, quark orbital motion PACS Codes 14.20.Dh, 12.38.−t, 13.40.−f ■ Abstract This review explains why generalized parton distributions and the related quantum phase-space distributions are useful in exploring the quark and gluon structure of the proton and neutron. It starts with the physics of form factors and parton distributions. Then quantum phase-space distributions and their offspring are discussed. The properties of generalized parton distributions are described. In particular, I elucidate the relation to the spin structure of the nucleon. Finally, various methods to determine the new distributions are explained.

show abstract

Section: Chiral Properties Of Gpdsmentioning

confidence: 55%

“…On the other hand, substituting the above into the nucleon matrix element of Equation 46, one finds (14)…”

Section: Form Factors Of Energy-momentum Tensor and Spin Structure Ofmentioning

confidence: 99%

Generalized Parton Distributions

2004

Annu. Rev. Nucl. Part. Sci.

157

145

View full text Add to dashboard Cite

show abstract

“…Subsequently, the pion mass and momentum dependence of form factors of the energy momentum tensor, i.e. the gravitational form factors, for the nucleon in the isovector and isosinglet channel has been worked out to leading 1-loop order in HBChPT [BJ02]. The complete set of moments of the nucleon vector, axial-vector and tensor GPDs has been investigated in [ACK06] in HBChPT to leading 1-loop order.…”

Section: Results From Chiral Perturbation Theorymentioning

confidence: 99%

Hadron structure from lattice quantum chromodynamics

2010

View full text Add to dashboard Cite

This is a review of hadron structure physics from lattice QCD. Throughout this report, we place emphasis on the contribution of lattice results to our understanding of a number of fundamental physics questions related to, e.g., the origin and distribution of the charge, magnetization, momentum and spin of hadrons. Following an introduction to some of the most important hadron structure observables, we summarize the methods and techniques employed for their calculation in lattice QCD. We briefly discuss the status of relevant chiral perturbation theory calculations needed for controlled extrapolations of the lattice results to the physical point. In the main part of this report, we give an overview of lattice calculations on hadron form factors, moments of (generalized) parton distributions, moments of hadron distribution amplitudes, and other important hadron structure observables. Whenever applicable, we compare with results from experiment and phenomenology, taking into account systematic uncertainties in the lattice computations. Finally, we discuss promising results based on new approaches, ideas and techniques, and close with remarks on future perspectives of the field.

show abstract

“…Significant progress has been made in many aspects of chiral perturbation theory (ChPT) relevant to the nucleon observables addressed in this work [47,50,54,55,56,57,58,59,60,61,62,63,64,65,66]. Although important developments have been made in correcting for our hybrid action [61,67,68,69,70] and finite volume [50,60], results for the relevant GFFs are not yet available.…”

Section: Chiral Extrapolationsmentioning

confidence: 99%

Nucleon generalized parton distributions from full lattice QCD

et al. 2008

View full text Add to dashboard Cite

We present a comprehensive study of the lowest moments of nucleon generalized parton distributions in N f = 2 + 1 lattice QCD using domain wall valence quarks and improved staggered sea quarks. Our investigation includes helicity dependent and independent generalized parton distributions for pion masses as low as 350 MeV and volumes as large as (3.5 fm) 3 , for a lattice spacing of 0.124 fm. We use perturbative renormalization at one-loop level with an improvement based on the non-perturbative renormalization factor for the axial vector current, and only connected diagrams are included in the isosinglet channel.

show abstract

Chiral structure of nucleon gravitational form factors

Cited by 71 publications

References 23 publications

Generalized Parton Distributions

Generalized Parton Distributions

Hadron structure from lattice quantum chromodynamics

Nucleon generalized parton distributions from full lattice QCD

Contact Info

Product

Resources

About