Angular momentum distribution of a quark dressed with a gluon
- 1. Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- 2. Department of Theoretical Physics, Tata Institute of Fundamental Research, Colaba, Mumbai 400005, India
Description
We investigate the different decompositions of the angular momentum in QCD for a relativistic spin composite state, namely a quark dressed with a gluon. We use light-front Hamiltonian perturbation theory, and in the light-front gauge, use the two-component framework by eliminating the constrained degrees of freedom. We also investigate the different decompositions of the angular momentum at the level of two-dimensional densities in the front form, including the effect of the so-called potential term. In this work, we consider the contribution coming from the quark part of the energy-momentum tensor. We contrast the different decompositions and also compare with other calculations in the literature. We also present the gravitational form factor related to the antisymmetric part of the energy-momentum tensor.
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10.1103_PhysRevD.109.016022.pdf
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.109.016022;
- arXiv
- arXiv:2311.04622;
- Crossref Funder ID
- 10.13039/501100006593;
Publishing Information
- Journal Title
- Physical Review D
- Journal Volume
- 109
- Journal Issue
- 1
- Journal Page Range
- 21 pgs.
- ISSN
- 1089-4918
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANGULAR MOMENTUM; ANTIQUARKS; COLOR MODEL; COMPARATIVE EVALUATIONS; DECOMPOSITION; DEGREES OF FREEDOM; ENERGY-MOMENTUM TENSOR; FORM FACTORS; GAUGE INVARIANCE; GLUON MODEL; GLUONS; HAMILTONIANS; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARKS; SPIN
- Descriptors DEC
- ANGULAR MOMENTUM; ANTIMATTER; ANTIPARTICLES; BOSONS; CHEMICAL REACTIONS; COMPOSITE MODELS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; FIELD THEORIES; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MATTER; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUANTUM OPERATORS; QUARK MODEL; QUARKS; TENSORS
Optional Information
- Contract/Grant/Project number
- 57/14/04/2021-BRNS/57082
- Notes
- Contact Email: 30004559@iitb.ac.in; Contact Email: sudeepsaha@iitb.ac.in; Contact Email: asmita@phy.iitb.ac.in; Contact Email: nilmani@theory.tifr.res.in; Record automatically processed
- Funding organization
- Board of Research in Nuclear Sciences