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Title: Eta-mesic nuclei: Past, present, future

Abstract

Eta-mesic nucleus or the quasibound nuclear state of an eta (η) meson in a nucleus is caused by strong interaction force alone. This new type of nuclear species, which extends the landscape of nuclear physics, has been extensively studied since its prediction in 1986. We review and analyze in great detail the models of the fundamental η–nucleon interaction leading to the formation of an η–mesic nucleus, the methods used in calculating the properties of a bound η, and the approaches employed in the interpretation of the pertinent experimental data. In view of the successful observation of the η–mesic nucleus 25Mgη and other promising experimental results, future direction in searching for more η–mesic nuclei is suggested.

Authors:
 [1];  [2]
  1. Fordham Univ., Bronx, NY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1221889
Report Number(s):
LA-UR-15-25819
Journal ID: ISSN 0218-3013; TRN: US1500744
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Modern Physics E
Additional Journal Information:
Journal Name: International Journal of Modern Physics E; Journal ID: ISSN 0218-3013
Publisher:
World Scientific
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Eta-mesic nuclei; final-state interaction; binding energy; scattering length

Citation Formats

Haider, Q., and Liu, Lon -Chang. Eta-mesic nuclei: Past, present, future. United States: N. p., 2015. Web. doi:10.1142/S021830131530009X.
Haider, Q., & Liu, Lon -Chang. Eta-mesic nuclei: Past, present, future. United States. doi:10.1142/S021830131530009X.
Haider, Q., and Liu, Lon -Chang. Wed . "Eta-mesic nuclei: Past, present, future". United States. doi:10.1142/S021830131530009X. https://www.osti.gov/servlets/purl/1221889.
@article{osti_1221889,
title = {Eta-mesic nuclei: Past, present, future},
author = {Haider, Q. and Liu, Lon -Chang},
abstractNote = {Eta-mesic nucleus or the quasibound nuclear state of an eta (η) meson in a nucleus is caused by strong interaction force alone. This new type of nuclear species, which extends the landscape of nuclear physics, has been extensively studied since its prediction in 1986. We review and analyze in great detail the models of the fundamental η–nucleon interaction leading to the formation of an η–mesic nucleus, the methods used in calculating the properties of a bound η, and the approaches employed in the interpretation of the pertinent experimental data. In view of the successful observation of the η–mesic nucleus 25Mgη and other promising experimental results, future direction in searching for more η–mesic nuclei is suggested.},
doi = {10.1142/S021830131530009X},
journal = {International Journal of Modern Physics E},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

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Free Publicly Available Full Text
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Cited by: 16 works
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Works referenced in this record:

Off-shell model for threshold pionic η production on a nucleon and for ηN scattering
journal, March 1985


Interaction of eta mesons with nuclei
journal, May 2013


Search for quasi bound η mesons
journal, January 2015


SU(3) chiral dynamics with coupled channels eta and kaon photoproduction
journal, January 1997


Pion photoproduction off the proton in a gauge-invariant chiral unitary framework
journal, November 2012


Chiral unitary approach to S -wave meson baryon scattering in the strangeness S = 0 sector
journal, February 2002


Coupled-channels study of the π p η n process
journal, August 2008


Chiral SU(3) dynamics with coupled channels: inclusion of p-wave multipoles
journal, June 2000


Pion-nucleon scattering in a meson-exchange model
journal, October 2003


Low-energy η N interactions: Scattering lengths and resonance parameters
journal, October 2005


η N final state interaction in incoherent photoproduction of η mesons from the deuteron near threshold
journal, April 2002


The reaction pd→3Heη near threshold
journal, May 1995


Unitary model for meson-nucleon scattering
journal, July 1998


Resonance model for πN scattering and η-meson production in the S11 channel
journal, January 1995


η-helium quasi-bound states
journal, July 1997


Chiral expansion for low-energy η-nucleon interactions with explicit resonance
journal, September 2001


Near-threshold production of η mesons
journal, March 1993


Chiral dynamics and the S11(1535) nucleon resonance
journal, November 1995


The New Determination of the ηN S-wave Scattering Length From a Three-Channel, Multi-Resonance Amplitude Analysis
journal, July 1998


η-nucleon scattering length and effective range
journal, May 1997


S 11 − N ( 1535 ) and − N ( 1650 ) resonances in meson-baryon unitarized coupled channel chiral perturbation theory
journal, November 2001


η -Nucleon scattering length and effective range uncertainties
journal, January 2005


A study of π-nucleon S-wave resonances and the η-nucleon interaction
journal, July 1992


Ambiguities in theη-nucleon scattering length determination
journal, December 1996

  • Birbrair, B. L.; Gridnev, A. B.
  • Zeitschrift für Physik A: Hadrons and Nuclei, Vol. 354, Issue 1
  • DOI: 10.1007/s002180050016

Multiple-scattering theory and the relativistic optical model
journal, July 1974


Calculation of the covariant pion-nucleus optical potential. I. Kinematical aspects
journal, December 1975


Pion-nucleus elastic scattering: theory and applications
journal, January 1981


Hadronic atoms in momentum space
journal, August 1978


On formation of η-meson-nucleus bound states
journal, September 1987


Energy Dependence of Pion Elastic Scattering from Nuclei across the (3,3) Resonance
journal, December 1980


Optical properties of low-energy pions in nuclei
journal, February 1966


K− nuclear interactions and yields of kaonic X-rays
journal, June 1970


η bound states in nuclei
journal, December 2002


In-medium ηN interactions and η nuclear bound states
journal, May 2014


The bound-state solution of wave equations for real or complex eigenvalues
journal, October 1968


Error sources in the standard numerical integration of the Schrödinger equation: An improved method
journal, February 1985


Coherent η-meson production in the reaction π^{-}+^{3}He→η+t
journal, November 1989


Reactions pd → 3 He η and pd → 3 He π + π − near the η threshold
journal, May 1996


Measurement of the p d → 3 He η cross section between 930 and 1100 MeV
journal, March 2002


Measurement of the pd→pdη cross section in complete kinematics
journal, January 2004


Measurement of in the S11 resonance
journal, January 2000


Identification of the d + p → He 3 + η Reaction Very Near Threshold: Cross Section and Deuteron Tensor Analyzing Power
journal, August 1988


Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>d</mml:mi><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mspace width="0.2em"/><mml:mmultiscripts><mml:mi mathvariant="normal">He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts><mml:mi>η</mml:mi></mml:math> reaction near threshold
journal, June 2007


Precision Study of the η He 3 System Using the d p → He 3 η Reaction
journal, June 2007


Search for Bound States of the η Meson in Light Nuclei
journal, June 1988


Signature for the existence of eta-mesic nucleus
journal, November 1986


Search for an η bound state in pion double charge exchange on O 18
journal, June 1993


Nuclear bound states of the η 0 meson and pion double-charge-exchange reactions
journal, October 1987


Search for η -mesic nuclei in a recoil-free transfer reaction
journal, January 2009


Interference and nuclear medium effects on the eta-mesic nuclear spectrum
journal, November 2010


Width of bound eta in nuclei
journal, August 1991


Interference effects in ( π , π N ) reactions
journal, July 1984


η -nuclear bound states revisited
journal, October 2013


Search for $\eta $-mesic Nuclei with WASA-at-COSY
journal, January 2015


Coherent photoproduction of η-mesons off 3He – search for η-mesic nuclei
journal, March 2012


The ηHe scattering length revisited
journal, November 2004


Spin-isospin correlation and multi-nucleon effects in η meson production by pions on 3He
journal, August 1992


Direct Evidence for Three-Body Mechanisms in the Reaction p + d → → He 3 + η
journal, October 1988


η production in proton-deuteron collisions
journal, July 2001


S-wave interactions of K̄ and η mesons in nuclear matter
journal, October 1997


Meson Properties at Finite Density from Mesic Atoms and Mesic Nuclei
journal, January 2014


Formation of η -mesic nuclei by the ( π , N ) reaction and properties of N * ( 1535 ) in medium
journal, August 2009


Binding vs. scattering length: η in light nuclei
journal, March 2013


Transformation Between Complex Scattering Length and Binding Energy
journal, January 2014


Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>t</mml:mi><mml:mover accent="true"><mml:mi>t</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> production cross section in <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> collisions at <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> using lepton+jets events with lifetime b-tagging
journal, October 2005


    Works referencing / citing this record:

    Search for Bound States of the η Meson in Light Nuclei
    journal, June 1988


    Measurement of in the S11 resonance
    journal, January 2000


    η-helium quasi-bound states
    journal, July 1997


    Pion-nucleus elastic scattering: theory and applications
    journal, January 1981


    The ηHe scattering length revisited
    journal, November 2004


    Low-energy η N interactions: Scattering lengths and resonance parameters
    journal, October 2005


    Measurement of the p d → 3 He η cross section between 930 and 1100 MeV
    journal, March 2002


    K− nuclear interactions and yields of kaonic X-rays
    journal, June 1970


    η -nuclear bound states revisited
    journal, October 2013


    η N final state interaction in incoherent photoproduction of η mesons from the deuteron near threshold
    journal, April 2002


    Near-threshold production of η mesons
    journal, March 1993


    Interaction of eta mesons with nuclei
    journal, May 2013


    Coherent photoproduction of η-mesons off 3He – search for η-mesic nuclei
    journal, March 2012


    Calculation of the covariant pion-nucleus optical potential. I. Kinematical aspects
    journal, December 1975


    η production in proton-deuteron collisions
    journal, July 2001


    η-nucleon scattering length and effective range
    journal, May 1997


    Direct Evidence for Three-Body Mechanisms in the Reaction p + d → → He 3 + η
    journal, October 1988


    Chiral SU(3) dynamics with coupled channels: inclusion of p-wave multipoles
    journal, June 2000


    Hadronic atoms in momentum space
    journal, August 1978


    Search for $\eta $-mesic Nuclei with WASA-at-COSY
    journal, January 2015


    Formation of η -mesic nuclei by the ( π , N ) reaction and properties of N * ( 1535 ) in medium
    journal, August 2009


    Optical properties of low-energy pions in nuclei
    journal, February 1966


    Chiral dynamics and the S11(1535) nucleon resonance
    journal, November 1995


    Pion photoproduction off the proton in a gauge-invariant chiral unitary framework
    journal, November 2012


    Interference and nuclear medium effects on the eta-mesic nuclear spectrum
    journal, November 2010


    η -Nucleon scattering length and effective range uncertainties
    journal, January 2005


    Coherent η-meson production in the reaction π^{-}+^{3}He→η+t
    journal, November 1989


    Search for an η bound state in pion double charge exchange on O 18
    journal, June 1993


    Pion-nucleon scattering in a meson-exchange model
    journal, October 2003


    Binding vs. scattering length: η in light nuclei
    journal, March 2013


    Precision Study of the η He 3 System Using the d p → He 3 η Reaction
    journal, June 2007


    Resonance model for πN scattering and η-meson production in the S11 channel
    journal, January 1995


    Off-shell model for threshold pionic η production on a nucleon and for ηN scattering
    journal, March 1985


    Transformation Between Complex Scattering Length and Binding Energy
    journal, January 2014


    Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>d</mml:mi><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mspace width="0.2em"/><mml:mmultiscripts><mml:mi mathvariant="normal">He</mml:mi><mml:mprescripts/><mml:none/><mml:mn>3</mml:mn></mml:mmultiscripts><mml:mi>η</mml:mi></mml:math> reaction near threshold
    journal, June 2007


    Error sources in the standard numerical integration of the Schrödinger equation: An improved method
    journal, February 1985


    A study of π-nucleon S-wave resonances and the η-nucleon interaction
    journal, July 1992


    Signature for the existence of eta-mesic nucleus
    journal, November 1986


    Interference effects in ( π , π N ) reactions
    journal, July 1984


    S-wave interactions of K̄ and η mesons in nuclear matter
    journal, October 1997


    The New Determination of the ηN S-wave Scattering Length From a Three-Channel, Multi-Resonance Amplitude Analysis
    journal, July 1998


    Spin-isospin correlation and multi-nucleon effects in η meson production by pions on 3He
    journal, August 1992


    η bound states in nuclei
    journal, December 2002


    S 11 − N ( 1535 ) and − N ( 1650 ) resonances in meson-baryon unitarized coupled channel chiral perturbation theory
    journal, November 2001


    On formation of η-meson-nucleus bound states
    journal, September 1987


    Reactions pd → 3 He η and pd → 3 He π + π − near the η threshold
    journal, May 1996


    Nuclear bound states of the η 0 meson and pion double-charge-exchange reactions
    journal, October 1987


    Coupled-channels study of the π p η n process
    journal, August 2008


    Energy Dependence of Pion Elastic Scattering from Nuclei across the (3,3) Resonance
    journal, December 1980


    Meson Properties at Finite Density from Mesic Atoms and Mesic Nuclei
    journal, January 2014


    Chiral expansion for low-energy η-nucleon interactions with explicit resonance
    journal, September 2001


    Width of bound eta in nuclei
    journal, August 1991


    The bound-state solution of wave equations for real or complex eigenvalues
    journal, October 1968


    Search for quasi bound η mesons
    journal, January 2015


    In-medium ηN interactions and η nuclear bound states
    journal, May 2014


    Multiple-scattering theory and the relativistic optical model
    journal, July 1974


    Chiral unitary approach to S -wave meson baryon scattering in the strangeness S = 0 sector
    journal, February 2002


    Measurement of the pd→pdη cross section in complete kinematics
    journal, January 2004


    Search for η -mesic nuclei in a recoil-free transfer reaction
    journal, January 2009


    Identification of the d + p → He 3 + η Reaction Very Near Threshold: Cross Section and Deuteron Tensor Analyzing Power
    journal, August 1988


    Ambiguities in theη-nucleon scattering length determination
    journal, December 1996

    • Birbrair, B. L.; Gridnev, A. B.
    • Zeitschrift für Physik A: Hadrons and Nuclei, Vol. 354, Issue 1
    • DOI: 10.1007/s002180050016

    Unitary model for meson-nucleon scattering
    journal, July 1998


    SU(3) chiral dynamics with coupled channels eta and kaon photoproduction
    journal, January 1997


    The reaction pd→3Heη near threshold
    journal, May 1995