scholarly journals Deep-Inelastic Scattering, the Subtraction of Divergent Sum Rules, and Chiral-Symmetry Breaking in the Gluon Model

1973 ◽  
Vol 7 (8) ◽  
pp. 2506-2516 ◽  
Author(s):  
R. L. Jaffe ◽  
C. H. Llewellyn Smith
1984 ◽  
Vol 25 (2) ◽  
pp. 151-160 ◽  
Author(s):  
Y. Chung ◽  
H. G. Dosch ◽  
M. Kremer ◽  
D. Schall

1991 ◽  
Vol 06 (03) ◽  
pp. 271-276 ◽  
Author(s):  
A. SIGNAL ◽  
A.W. SCHREIBER ◽  
A.W. THOMAS

Recently deep inelastic scattering experiments have implied that the ‘sea’ of the nucleon breaks flavor SU(2) symmetry. We examine the possible origins of this symmetry breaking in the Fermi statistics of the quarks and antiquarks in the sea and the requirements of chiral symmetry. We show that the present data have a natural explanation in terms of the long-range pion structure of the nucleon. Further work may lead to useful bounds on the parameters of bag models of the nucleon.


1982 ◽  
Vol 197 (1) ◽  
pp. 55-75 ◽  
Author(s):  
Y. Chung ◽  
H.G. Dosch ◽  
M. Kremer ◽  
D. Schall

1993 ◽  
Vol 08 (04) ◽  
pp. 335-339
Author(s):  
M. FABER ◽  
A.N. IVANOV ◽  
M. NAGY ◽  
N.I. TROITSKAYA

For the low-energy approximation of QCD, the extended Nambu-Jona-Lasinio model has been used. Quarks interact with an external homogeneous color-magnetic field, simulating the contribution of the gluon condensate. The value of the gluon condensate, needed to reach the correct value of the quark condensate, is determined and agrees well with the value obtained from QCD sum rules.


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