Nonperturbative calculations of the pion decay constant and the quark condensate in chiral QCD

1990 ◽  
Vol 244 (1) ◽  
pp. 68-74 ◽  
Author(s):  
V.Sh. Gogokhia ◽  
Gy. Kluge ◽  
B.A. Magradze
1994 ◽  
Vol 09 (04) ◽  
pp. 279-287 ◽  
Author(s):  
G. CHANFRAY ◽  
M. ERICSON ◽  
M. KIRCHBACH

We study the pion decay constant, associated with the time component of the axial current, in the nuclear medium in terms of the pion self-energy. The theoretical scheme exploits chiral properties of the s-wave πN amplitude as previously applied to the study of the medium renormalized pion mass. We show that the Gell-Mann-Oakes-Renner relation holds to a good approximation in the medium. The renormalizations of the pion decay constant and the pion mass are consistent with that predicted for the quark condensate in the medium.


2004 ◽  
Vol 590 (3-4) ◽  
pp. 258-264 ◽  
Author(s):  
Gilberto Colangelo ◽  
Christoph Haefeli

2002 ◽  
Vol 106-107 ◽  
pp. 341-343
Author(s):  
S.J. Dong ◽  
T. Draper ◽  
I. Horváth ◽  
F.X. Lee ◽  
J.B. Zhang

2014 ◽  
Vol 732 ◽  
pp. 41-48 ◽  
Author(s):  
R. Horsley ◽  
Y. Nakamura ◽  
A. Nobile ◽  
P.E.L. Rakow ◽  
G. Schierholz ◽  
...  

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