The holographic paradigm of hadron dynamics for medium modified nuclear matters

Journal Article · 02 March 2020 · Physics Letters B

DOI: https://doi.org/10.1016/j.physletb.2020.135339 · OSTI ID:1602329

de Paula, W.  ^[1]; Ji, Chueng-Ryong  ^[2]; de Melo, J. P. B. C. ^[3]; Frederico, T. ^[1]; Lourenço, O. ^[1]

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1. Instituto Tecnológico de Aeronáutica, Sao Jose dos Campos (Brazil)
2. North Carolina State University, Raleigh, NC (United States)
3. Universidade Cruzeiro do Sul/Universidade Cidade de São Paulo (Brazil)

We propose a medium-modified holographic-hadron dynamics suitable for the study of symmetric nuclear matter, with a key property of a simple law for the evolution of the five dimensional mass with the scalar background field. We show that the model satisfies symmetric nuclear matter constraints, namely, incompressibility and density dependence of the pressure, with only three free adjustable parameters fitted to the free nucleon mass and the nuclear matter saturation properties. We found that the holographic nucleon swells and the UV behavior of the associated string amplitude is damped, with the scaling property at short distances softened. Both effects can also generate observable consequences reflecting an average leakage of partons to the nuclear medium when density is increased, in the route towards the deconfinement of the internal nucleon degrees of freedom.

• Research Organization: North Carolina State University, Raleigh, NC (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE
• Grant/Contract Number: FG02-03ER41260; AC02-05CH11231
• OSTI ID: 1602329
• Alternate ID(s): OSTI ID: 1657251
• Journal Information: Physics Letters B, Vol. 803; ISSN 0370-2693
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English