Nucleon D-term in holographic quantum chromodynamics
نویسندگان
چکیده
Abstract The D-term is one of the conserved charges hadrons defined as forward limit gravitational form factor D(t). We calculate nucleon’s in a holographic quantum chromodynamics model which nucleon described soliton five dimensions. show that D(t) saturated by exchanges infinitely many 0++ and 2++ glueballs dual to transverse-traceless metric fluctuations on Wick-rotated AdS7 black hole geometry. refer this phenomenon “glueball dominance,” perfect analogy vector meson dominance electromagnetic factors. However, value at vanishing momentum transfer D(t = 0) can be interpreted due exchange pairs pions axial-vector mesons without any reference glueballs. find slightly negative result cancellation between isovector isoscalar contributions.
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ژورنال
عنوان ژورنال: Progress of theoretical and experimental physics
سال: 2022
ISSN: ['1347-4081', '0033-068X']
DOI: https://doi.org/10.1093/ptep/ptac110