Stringy excited baryons in holographic quantum chromodynamics

Author:

Hayashi Yasuhiro1,Ogino Takahiro1,Sakai Tadakatsu12,Sugimoto Shigeki34

Affiliation:

1. Department of Physics, Nagoya University, Nagoya 464-8602, Japan

2. Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602, Japan

3. Center for Gravitational Physics, Yukawa Institute of Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan

4. Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwanoha, Kashiwa 277-8583, Japan

Abstract

Abstract We analyze excited baryon states using a holographic dual of quantum chromodynamics that is defined on the basis of an intersecting D4/D8-brane system. Studies of baryons in this model have been made by regarding them as a topological soliton of a gauge theory on a five-dimensional curved spacetime. However, this allows one to obtain only a certain class of baryons. We attempt to present a framework such that a whole set of excited baryons can be treated in a systematic way. This is achieved by employing the original idea of Witten, which states that a baryon is described by a system composed of $N_c$ open strings emanating from a baryon vertex. We argue that this system can be formulated by an Atiyah–Drinfeld–Hitchin–Manin-type matrix model of Hashimoto–Iizuka–Yi together with an infinite tower of the open string massive modes. Using this setup, we work out the spectra of excited baryons and compare them with the experimental data. In particular, we derive a formula for the nucleon Regge trajectory assuming that the excited nucleons lying on the trajectory are characterized by the excitation of a single open string attached on the baryon vertex.

Funder

SCOAP

Publisher

Oxford University Press (OUP)

Subject

General Physics and Astronomy

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Nucleons and vector mesons in a confining holographic QCD model;Physical Review D;2024-05-31

2. Resonance contributions to nucleon spin structure in holographic QCD;Journal of High Energy Physics;2024-04-05

3. Nucleon D-term in holographic quantum chromodynamics;Progress of Theoretical and Experimental Physics;2022-08-23

4. Many phases of generalized 3D instanton crystals;SciPost Physics;2021-07-23

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