Gravitational form factors of a baryon with spin-3/2

The energy–momentum tensor (EMT) for a spin-3/2 baryon is related to seven mechanical quantities. In this work, we provide the general form of the gravitational form factors (GFFs) for a spin-3/2 baryon by using the multipole expansion and interesting relations between the EMT densities and the GFFs...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2021, Vol.81 (1), p.1-17, Article 85
Hauptverfasser:	Kim, June-Young, Sun, Bao-Dong
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Baryons Elementary Particles Form factors Gravitation Hadrons Heavy Ions Measurement Science and Instrumentation Multipoles Nuclear Energy Nuclear Physics Physical Sciences Physics Physics and Astronomy Physics, Particles & Fields Quantum Field Theories Quantum Field Theory Regular Article – Theoretical Physics Science & Technology String Theory Tensors
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Beschreibung
Zusammenfassung:	The energy–momentum tensor (EMT) for a spin-3/2 baryon is related to seven mechanical quantities. In this work, we provide the general form of the gravitational form factors (GFFs) for a spin-3/2 baryon by using the multipole expansion and interesting relations between the EMT densities and the GFFs. To verify those general relations, we study the nucleon and the Δ GFFs within the SU(2) Skyrme model based on the large N c limit.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-021-08852-z