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Title: Formation of {eta}{sup '}(958)-Mesic Nuclei and Axial U{sub A}(1) Anomaly at Finite Density

Abstract

We discuss the possibility of producing the bound states of the {eta}{sup '}(958) meson in nuclei theoretically. We calculate the formation cross sections of the {eta}{sup '} bound states with the Green function method for the ({gamma},p) reaction and discuss the experimental feasibility at photon facilities such as SPring-8. We conclude that we can expect to observe resonance peaks in ({gamma},p) spectra for the formation of {eta}{sup '} bound states and we can deduce new information on {eta}{sup '} properties at finite density. These observations are believed to be essential to know the possible mass shift of {eta}{sup '} and deduce new information on the effective restoration of the chiral U{sub A}(1) anomaly in the nuclear medium.

Authors:
 [1];  [2]
  1. Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047 (Japan)
  2. Department of Physics, Nara Women's University, Nara 630-8506 (Japan)
Publication Date:
OSTI Identifier:
20696380
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 94; Journal Issue: 23; Other Information: DOI: 10.1103/PhysRevLett.94.232503; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOUND STATE; CHIRALITY; CROSS SECTIONS; ETA PRIME-958 MESONS; GREEN FUNCTION; MESIC ATOMS; PHOTON-NUCLEON INTERACTIONS; PHOTONS; SPRING-8 STORAGE RING

Citation Formats

Nagahiro, Hideko, and Hirenzaki, Satoru. Formation of {eta}{sup '}(958)-Mesic Nuclei and Axial U{sub A}(1) Anomaly at Finite Density. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.94.232503.
Nagahiro, Hideko, & Hirenzaki, Satoru. Formation of {eta}{sup '}(958)-Mesic Nuclei and Axial U{sub A}(1) Anomaly at Finite Density. United States. https://doi.org/10.1103/PhysRevLett.94.232503
Nagahiro, Hideko, and Hirenzaki, Satoru. 2005. "Formation of {eta}{sup '}(958)-Mesic Nuclei and Axial U{sub A}(1) Anomaly at Finite Density". United States. https://doi.org/10.1103/PhysRevLett.94.232503.
@article{osti_20696380,
title = {Formation of {eta}{sup '}(958)-Mesic Nuclei and Axial U{sub A}(1) Anomaly at Finite Density},
author = {Nagahiro, Hideko and Hirenzaki, Satoru},
abstractNote = {We discuss the possibility of producing the bound states of the {eta}{sup '}(958) meson in nuclei theoretically. We calculate the formation cross sections of the {eta}{sup '} bound states with the Green function method for the ({gamma},p) reaction and discuss the experimental feasibility at photon facilities such as SPring-8. We conclude that we can expect to observe resonance peaks in ({gamma},p) spectra for the formation of {eta}{sup '} bound states and we can deduce new information on {eta}{sup '} properties at finite density. These observations are believed to be essential to know the possible mass shift of {eta}{sup '} and deduce new information on the effective restoration of the chiral U{sub A}(1) anomaly in the nuclear medium.},
doi = {10.1103/PhysRevLett.94.232503},
url = {https://www.osti.gov/biblio/20696380}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 23,
volume = 94,
place = {United States},
year = {Fri Jun 17 00:00:00 EDT 2005},
month = {Fri Jun 17 00:00:00 EDT 2005}
}