scholarly journals Application of the Large–Nc limit to a Chiral Lagrangian with Resonances

2003 ◽  
Author(s):  
Oscar Catà
Keyword(s):  
Chiral Lagrangian

scholarly journals 2, 12, 117, 1959, 45171, 1170086, …: a Hilbert series for the QCD chiral Lagrangian

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Lukáš Gráf ◽  
Brian Henning ◽  
Xiaochuan Lu ◽  
Tom Melia ◽  
Hitoshi Murayama
Keyword(s):  
Hilbert Series ◽  
Charge Conjugation ◽  
External Fields ◽  
Dynkin Diagrams ◽  
Non Linear ◽  
Very High ◽  
Chiral Lagrangian

Abstract We apply Hilbert series techniques to the enumeration of operators in the mesonic QCD chiral Lagrangian. Existing Hilbert series technologies for non-linear realizations are extended to incorporate the external fields. The action of charge conjugation is addressed by folding the $$ \mathfrak{su}(n) $$ su n Dynkin diagrams, which we detail in an appendix that can be read separately as it has potential broader applications. New results include the enumeration of anomalous operators appearing in the chiral Lagrangian at order p8, as well as enumeration of CP-even, CP-odd, C-odd, and P-odd terms beginning from order p6. The method is extendable to very high orders, and we present results up to order p16.(The title sequence is the number of independent C-even and P-even operators in the mesonic QCD chiral Lagrangian with three light flavors of quarks, at chiral dimensions p2, p4, p6, …)

K-Balls in the chiral lagrangian

1986 ◽  
Vol 182 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Jacques Distler ◽  
Brian Hill ◽  
Donald Spector
Keyword(s):  
Chiral Lagrangian

scholarly journals PRODUCTION OF TWO PIONS INDUCED BY NEUTRINOS

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2309-2312 ◽  
Author(s):  
M. VALVERDE ◽  
J. NIEVES ◽  
E. HERNÁNDEZ ◽  
S. K. SINGH ◽  
M. J. VICENTE VACAS
Keyword(s):  
Roper Resonance ◽  
Nucleon Pole ◽  
Chiral Lagrangian

We study the threshold production of two pions induced by neutrinos in nucleon targets. The contribution of nucleon pole, pion and contact terms is calculated using a chiral Lagrangian. The contribution of the Roper resonance, neglected in earlier studies, has also been taken into account.

scholarly journals Chiral Lagrangian for strange hadronic matter

1998 ◽  
Vol 57 (5) ◽  
pp. 2576-2588 ◽  
Author(s):  
P. Papazoglou ◽  
S. Schramm ◽  
J. Schaffner-Bielich ◽  
H. Stöcker ◽  
W. Greiner
Keyword(s):  
Hadronic Matter ◽  
Chiral Lagrangian

Rare decay modes of the K-mesons in the chiral lagrangian

1986 ◽  
Vol 175 (2) ◽  
pp. 237-242 ◽  
Author(s):  
G. D'Ambrosio ◽  
D. Espriu
Keyword(s):  
Rare Decay ◽  
Decay Modes ◽  
K Mesons ◽  
Chiral Lagrangian

Effective chiral Lagrangian with baryons

1987 ◽  
Vol 35 (1) ◽  
pp. 330-343 ◽  
Author(s):  
G. A. Christos
Keyword(s):  
Chiral Lagrangian
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