scholarly journals ρ, ω, and φ meson-nucleon scattering lengths from QCD sum rules

1995 ◽  
Vol 51 (3) ◽  
pp. 1488-1493 ◽  
Author(s):  
Yuji Koike
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Nucleon Scattering ◽  
Scattering Lengths

scholarly journals Pion-nucleon and kaon-nucleon scattering lengths in QCD sum rules

1996 ◽  
Vol 53 (4) ◽  
pp. 1927-1935 ◽  
Author(s):  
Y. Kondo ◽  
O. Morimatsu ◽  
Y. Nishino
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Nucleon Scattering ◽  
Pion Nucleon ◽  
Scattering Lengths

NON-PERTURBATIVE QCD CHARGE ASYMMETRIC CORRECTIONS TO THE NN SCATTERING LENGTHS

1989 ◽  
Vol 04 (08) ◽  
pp. 713-719
Author(s):  
RIAZUDDIN ◽  
FAYYAZUDDIN
Keyword(s):  
Sum Rules ◽  
Experimental Information ◽  
Coupling Constants ◽  
The Other ◽  
Nuclear Forces ◽  
Charge Symmetry Breaking ◽  
Qcd Sum Rules ◽  
Charge Symmetry ◽  
Light Baryon ◽  
Scattering Lengths

The effect of the vacuum asymmetry [Formula: see text] on π0pp and π0nn coupling constants has been estimated in the QCD sum rules approach. This effect can contribute to charge symmetry breaking in nuclear forces (CSB). The experimental information on CSB is used to estimate εd and the other vacuum asymmetry. [Formula: see text]. It is shown that the values of εs larger than 0.3 still allowed by QCD sum rules in light baryon and meson sectors are not possible.

scholarly journals ANALYSIS OF MASS MODIFICATIONS OF THE VECTOR AND AXIAL VECTOR HEAVY MESONS IN THE NUCLEAR MATTER WITH THE QCD SUM RULES

2013 ◽  
Vol 28 (14) ◽  
pp. 1350049 ◽  
Author(s):  
ZHI-GANG WANG
Keyword(s):  
Nuclear Matter ◽  
Sum Rules ◽  
Axial Vector ◽  
Vector Mesons ◽  
Qcd Sum Rules ◽  
Heavy Mesons ◽  
Scattering Lengths ◽  
Mass Shifts

In this paper, we calculate the mass modifications of the vector and axial vector mesons D*, B*, D1 and B1 in the nuclear matter with the QCD sum rules, and obtain the mass-shifts δMD* = -71 MeV , δMB* = -380 MeV , δMD1 = 72 MeV , δMB1 = 264 MeV , and the scattering lengths aD* = -1.07 fm , aB* = -7.17 fm , aD1 = 1.15 fm and aB1 = 5.03 fm for the D*N, B*N, D1N and B1N interactions, respectively.

scholarly journals Hadron-Nucleon Scattering Lengths from QCD Sum Rules

1997 ◽  
Vol 50 (1) ◽  
pp. 221
Author(s):  
Y. Kondo ◽  
O. Morimatsu ◽  
Y. Nishino
Keyword(s):  
Qualitative Agreement ◽  
Sum Rules ◽  
Scattering Length ◽  
Nucleon Nucleon ◽  
Low Energy ◽  
Nucleon Scattering ◽  
Sum Rule ◽  
Hadron Mass ◽  
Pion Nucleon ◽  
Scattering Lengths

Hadron–nucleon scattering lengths are studied by the QCD sum rule. First we explain our motivation and present the formulation for calculating hadron-nucleon scattering lengths by the QCD sum rule, where the relation between the hadron mass in the nuclear medium and the hadron–nucleon scattering length is also clarified. Secondly we discuss two applications, the pion–nucleon scattering lengths and the nucleon-nucleon scattering lengths. In the case of the pion–nucleon scattering length we show that the results of the QCD sum rule are consistent with the low-energy theorem. In the case of the nucleon–nucleon scattering lengths we show that the results of the QCD sum rule are in qualitative agreement with experiment.

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