Baryons in AdS/QCD - INSPIRE

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Baryons in AdS/QCD

Deog Ki Hong
(
- Pusan Natl. U. and
- POSTECH
)
,
Takeo Inami
(
- Chuo U., Tokyo
)
,
Ho-Ung Yee
(
- Korea Inst. Advanced Study, Seoul
)

Sep, 2006

17 pages

Published in:

Phys.Lett.B 646 (2007) 165-171

e-Print:

hep-ph/0609270 [hep-ph]

DOI:

10.1016/j.physletb.2007.01.030

Report number:

PNUTP-06-A20,
KIAS-P06040

View in:

ADS Abstract Service

reference search147 citations

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Abstract: (Elsevier)

We construct a holographic model for baryons in the context of AdS/QCD and study the spin- 12 nucleon spectra and its couplings to mesons, taking full account of the effects from the chiral symmetry breaking. A pair of 5D spinors is introduced to represent both left and right chiralities. Our model contains two adjustable parameters, the infrared cutoff and the Yukawa coupling of bulk spinors to bulk scalars, corresponding to the order parameter of chiral symmetry. Taking the lowest-lying nucleon mass as an input, we calculate the mass spectrum of excited nucleons and the nucleon couplings to pions. The excited nucleons show a parity-doubling pattern with smaller pion–nucleon couplings.

11.25.Tq
12.38.Bx
11.25.Wx
11.10.Kk
quantum chromodynamics
space-time: anti-de Sitter
baryon: model
holography
nucleon resonance: mass spectrum
coupling: (2nucleon pi)

References(29)

Figures(0)

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