Results 1 to 10 of about 2,429 (218)

The order p 8 mesonic chiral Lagrangian [PDF]

Journal of High Energy Physics, 2019
We derive the chiral Lagrangian at next-to-next-to-next-to-leading order (NNNLO) for a general number N f of light quark flavours as well as for N f = 2, 3. We enumerate the contact terms separately.
Johan Bijnens, Nils Hermansson-Truedsson, Si Wang   +2 more
doaj   +7 more sources

2, 12, 117, 1959, 45171, 1170086, …: a Hilbert series for the QCD chiral Lagrangian [PDF]

Journal of High Energy Physics, 2021
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
Lukáš Gráf, Brian Henning, Xiaochuan Lu, Tom Melia, Hitoshi Murayama   +4 more
doaj   +3 more sources

The chiral Lagrangian of CP-violating axion-like particles [PDF]

Journal of High Energy Physics
We discuss the construction of the most general CP-violating chiral Lagrangian for an axion-like particle (ALP). Starting with an effective Lagrangian containing light quarks and gluons, we provide its matching onto a chiral effective Lagrangian at O $$ \
Luca Di Luzio, Gabriele Levati, Paride Paradisi   +2 more
doaj   +4 more sources

On the minimality of the order p6 chiral Lagrangian [PDF]

Physics Letters B, 2015
A method to find relations between the operators in the mesonic Lagrangian of Chiral Perturbation Theory at order p6 is presented. The procedure can be used to establish if the basis of operators in the Lagrangian is minimal.
Pedro Ruiz-Femenía, Mehran Zahiri-Abyaneh   +1 more
doaj   +4 more sources

The anomalous chiral Lagrangian of order $p^6$ [PDF]

European Physical Journal C, 2002
12 pages, misprint in table 2 ...
Johan Bijnens, Luca Girlanda, P Talavera   +2 more
exaly   +5 more sources

The anomalous chiral Lagrangian at order p8

Journal of High Energy Physics
Abstract We derive the order p 8 Lagrangian of odd intrinsic parity for mesonic chiral perturbation theory, and provide the resulting operator basis in the supplementary material. Neglecting the non-zero singlet trace, we find 999 operators for a general number of quark flavours N f
Johan Bijnens, Bijnens Johan
exaly   +4 more sources

On the off-shell superfield Lagrangian formulation of 4D, N=1 supersymmetric infinite spin theory

Physics Letters B, 2022
We develop a complete off-shell Lagrangian description of the free 4D,N=1 supersymmetric theory of infinite spin. Bosonic and fermionic fields are formulated in terms of spin-tensor fields with dotted and undotted indices.
I.L. Buchbinder, S.A. Fedoruk, A.P. Isaev, V.A. Krykhtin   +3 more
doaj   +1 more source

Species Doubling and Chiral Lagrangians [PDF]

Physical Review Letters, 1996
Coupling gauge fields to the chiral currents from an effective Lagrangian for pseudoscalar mesons naturally gives rise to a species doubling phenomenon similar to that seen with fermionic fields in lattice gauge theory.
Tytgat, Michel, Creutz, Michael
openaire   +4 more sources

A chiral effective lagrangian for nuclei [PDF]

Nuclear Physics A, 1997
43 pages, REVTeX 3.0 with epsf.sty, plus 12 ...
Furnstahl, R. J., Serot, Brian D., Tang, Hua-Bin   +2 more
openaire   +2 more sources

A supersymmetric effective chiral Lagrangian [PDF]

Physics Letters B, 1994
We construct in a manifestly supersymmetric form the leading and subleading terms in momentum for an effective supersymmetric chiral Lagrangian in terms of complex pions and their superpartners. A soft supersymmetry breaking term is included and below the supersymmetry breaking scale the Lagrangian reduces to the usual bosonic chiral Lagrangian in ...
Barnes, K. J., Ross, D. A., Simmons, R. D.   +2 more
openaire   +2 more sources