Results 1 to 10 of about 674 (117)

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

open access: yesJournal 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
Hitoshi Murayama   +2 more
exaly   +2 more sources

The chiral Lagrangian of CP-violating axion-like particles

open access: yesJournal 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   +2 more
exaly   +2 more sources

The order p8 mesonic chiral Lagrangian

open access: yesJournal 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
exaly   +3 more sources

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

open access: yesPhysics 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   +3 more
doaj   +1 more source

Fixed points of (0,2) Landau-Ginzburg renormalization group flows and the chiral algebra

open access: yesJournal of High Energy Physics, 2022
We discuss renormalization group flows in two-dimensional quantum field theories with (0,2) supersymmetry. We focus on theories with UV described by a Landau-Ginzburg Lagrangian and use the chiral algebra to constrain the IR dynamics. We present examples
Marco Bertolini   +2 more
doaj   +1 more source

Low-energy effective description of dark $Sp(4)$ theories

open access: yesSciPost Physics, 2023
Strongly interacting massive particles are viable dark matter candidates. We consider a dark $Sp(4)$ gauge theory with $N_f=2$ fermions in the pseudo-real fundamental representation and construct the chiral low-energy effective theory.
Suchita Kulkarni, Axel Maas, Seán Mee, Marco Nikolic, Josef Pradler, Fabian Zierler
doaj   +1 more source

Isospin Symmetry Breaking in Non-Perturbative QCD

open access: yesPhysical Sciences Forum, 2023
At finite isospin chemical potential μI, the tension between measured decays and partial branching ratios of neutral and charged bosons as functions of dimuon mass squared and the Standard Model (SM) isospin asymmetry can be analyzed in nonperturbative ...
Abdel Nasser Tawfik
doaj   +1 more source

Nonlinear (chiral) p-form electrodynamics

open access: yesJournal of High Energy Physics, 2022
In our previous article Phys. Rev. Lett. 127 (2021) 271601, we announced a novel ‘democratic’ Lagrangian formulation of general nonlinear electrodynamics in four dimensions that features electric and magnetic potentials on equal footing. Here, we give an
Zhirayr Avetisyan   +2 more
doaj   +1 more source

Chiral physics in the magnetic field with quark confinement contribution

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The standard chiral perturbation theory is known to predict much weaker effects in magnetic field, than found in numerical lattice data. To overcome this disagreement we are using the effective chiral confinement Lagrangian, $$L_{ECCL}$$ LECCL ...
M. A. Andreichikov, Yu. A. Simonov
doaj   +1 more source

A toolkit for twisted chiral superfields

open access: yesJournal of High Energy Physics, 2020
We calculate the most general terms for arbitrary Lagrangians of twisted chiral superfields in 2D (2,2) supersymmetric theories [1]. The scalar and fermion kinetic terms and interactions are given explicitly.
Nana Cabo Bizet, Roberto Santos-Silva
doaj   +1 more source

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