scholarly journals J/Ψ mass shift in nuclear matter

2011 ◽  
Vol 697 (2) ◽  
pp. 136-141 ◽  
Author(s):  
G. Krein ◽  
A.W. Thomas ◽  
K. Tsushima
Keyword(s):  
Nuclear Matter ◽  
Mass Shift

scholarly journals QUARKONIUM CHROMO-POLARIZABILITY FROM THE DECAYS J/ψ(ϒ)→ππℓ+ℓ-

2004 ◽  
Vol 19 (09) ◽  
pp. 665-670 ◽  
Author(s):  
M. B. VOLOSHIN
Keyword(s):  
Nuclear Matter ◽  
Quark Mass ◽  
Mass Shift ◽  
Soft Gluon ◽  
Electric Interaction ◽  
Precision Determination ◽  
B Quark

It is pointed out that the diagonal amplitude of the E1–E1 chromo-electric interaction with soft gluon fields (chromo-polarizability) can be measured directly for the J/ψ and ϒ resonances in the decays J/ψ→ππℓ+ℓ- and ϒ→ππℓ+ℓ- with soft pions. For the J/ψ this amplitude is often discussed in connection with the J/ψ interaction with nuclear matter, while for the ϒ the chromo-polarizability enters the estimates of the nonperturbative mass shift of the resonance relevant to precision determination of the b quark mass from the ϒ mass.

scholarly journals Mass shift of σ-meson in nuclear matter

Pramana ◽  
2013 ◽  
Vol 80 (3) ◽  
pp. 479-485
Author(s):  
J R MORONES-IBARRA ◽  
MÓNICA MENCHACA MACIEL ◽  
AYAX SANTOS-GUEVARA ◽  
FELIPE ROBLEDO PADILLA
Keyword(s):  
Nuclear Matter ◽  
Mass Shift

scholarly journals $\eta$ mesons in hot magnetized nuclear matter

2021 ◽  
Author(s):  
Rajesh Kumar ◽  
Arvind Kumar
Keyword(s):  
Magnetic Field ◽  
Nuclear Matter ◽  
Optical Potential ◽  
Mass Shift ◽  
Medium Effect ◽  
Eta Mesons ◽  
Chiral Model ◽  
Combined Approach ◽  
Eta Meson ◽  
Medium Mass

Abstract The $\eta N$ interactions are investigated in the hot magnetized asymmetric nuclear matter using chiral SU(3) model and chiral perturbation theory (ChPT). In the chiral model, the in-medium properties of $\eta$-meson are calculated by the medium modified scalar densities under the influence of an external magnetic field. Further, in the combined approach of chiral model and ChPT, off-shell contributions of $\eta N$ interactions are evaluated from the ChPT effective $\eta N$ Lagrangian, and the in-medium effect of scalar densities are incorporated from the chiral SU(3) model. We observe a significant effect of magnetic field on the in-medium mass and optical potential of $\eta$ meson. We observe a deeper mass-shift in the combined approach of ChPT and chiral model compared to the effect of solo chiral SU(3) model. In both approaches, no additional mass-shift is observed due to the uncharged nature of $\eta$ mesons in the presence of magnetic field.

TEMPERATURE DEPENDENCE OF THE EFFECTIVE INTERACTION IN NUCLEAR MATTER

1987 ◽  
Vol 48 (C2) ◽  
pp. C2-301-C2-304
Author(s):  
M. BALDO ◽  
G. GIANSIRACUSA ◽  
U. LOMBARDO
Keyword(s):  
Nuclear Matter ◽  
Temperature Dependence ◽  
Effective Interaction

Onset Transition to Cold Nuclear Matter from Lattice QCD with Heavy Quarks

2014 ◽  
Author(s):  
Mathias Neuman ◽  
Jens Langelage ◽  
Owe Philipsen
Keyword(s):  
Nuclear Matter ◽  
Lattice Qcd ◽  
Heavy Quarks ◽  
Cold Nuclear Matter
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