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Related papers: Power counting in relativistic baryon chiral pertu…

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We discuss a renormalization scheme for relativistic baryon chiral perturbation theory which provides a simple and consistent power counting for renormalized diagrams. The method involves finite subtractions of dimensionally regularized…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Fuchs , J. Gegelia , G. Japaridze , S. Scherer

We discuss a renormalization scheme for relativistic baryon chiral perturbation theory which provides a simple and consistent power counting for renormalized diagrams. The method involves finite subtractions of dimensionally regularized…

High Energy Physics - Phenomenology · Physics 2015-06-25 Thomas Fuchs , Jambul Gegelia , Stefan Scherer

A successful effective field theory program requires besides the most general effective Lagrangian a perturbative expansion scheme for observables in terms of a consistent power counting method. We discuss a renormalization scheme for…

High Energy Physics - Phenomenology · Physics 2015-06-25 Stefan Scherer

We briefly outline the so-called extended on-mass-shell renormalization scheme for manifestly Lorentz-invariant baryon chiral perturbation theory which provides a simple and consistent power counting for renormalized diagrams. We comment on…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Fuchs , M. R. Schindler , J. Gegelia , S. Scherer

We provide a short introduction to the one-nucleon sector of chiral perturbation theory and address the issue of power counting and renormalization. We discuss the infrared regularization and the extended on-mass-shell scheme. Both allow…

High Energy Physics - Phenomenology · Physics 2015-06-03 Stefan Scherer

We provide an introduction to the power-counting issue in baryon chiral perturbation theory and discuss some recent developments in the manifestly Lorentz-invariant formulation of the one-nucleon sector. As explicit applications we consider…

High Energy Physics - Phenomenology · Physics 2014-11-20 Stefan Scherer

The issue of consistent power counting in baryon chiral perturbation theory is revisited.

High Energy Physics - Phenomenology · Physics 2015-05-28 Vladimir Pascalutsa

It is demonstrated that using a suitable renormalization condition one obtains a consistent power counting in manifestly Lorentz-invariant baryon chiral perturbation theory including vector mesons as explicit degrees of freedom.

High Energy Physics - Phenomenology · Physics 2015-06-25 T. Fuchs , M. R. Schindler , J. Gegelia , S. Scherer

It is demonstrated that using an appropriately chosen renormalization condition one can respect power counting within the relativistic baryon chiral perturbation theory without appealing to the technique of the heavy baryon approach.…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Gegelia , G. Japaridze , X. Q. Wang

We discuss the masses of the ground state baryon octet and the nucleon sigma terms in the framework of manifestly Lorentz-invariant baryon chiral perturbation theory. In order to obtain a consistent power counting for renormalized diagrams…

High Energy Physics - Phenomenology · Physics 2009-11-10 B. C. Lehnhart , J. Gegelia , S. Scherer

The present note summarizes the discourse on power counting issues of chiral nuclear forces, with an emphasis on renormalization-group invariance. Given its introductory nature, I will lean toward narrating a coherent point of view on the…

Nuclear Theory · Physics 2016-05-10 Bingwei Long

We describe details of the renormalization of two-loop integrals relevant to the calculation of the nucleon mass in the framework of manifestly Lorentz-invariant chiral perturbation theory using infrared renormalization. It is shown that…

High Energy Physics - Phenomenology · Physics 2021-02-26 M. R. Schindler , D. Djukanovic , J. Gegelia , S. Scherer

The renormalization of the NN interaction with the Chiral Two Pion Exchange Potential computed using relativistic baryon chiral perturbation theory is considered. The short distance singularity reduces the number of counter-terms to about a…

Nuclear Theory · Physics 2008-11-26 R. Higa , M. Pavon Valderrama , E. Ruiz Arriola

We compute the self energies of the baryon octet and decuplet states at the one-loop level applying the manifestly covariant chiral Lagrangian. It is demonstrated that expressions consistent with the expectation of power counting rules…

Nuclear Theory · Physics 2010-12-16 A. Semke , M. F. M. Lutz

We will give a short introduction to the one-nucleon sector of chiral perturbation theory and will address the issue of a consistent power counting and renormalization. We will discuss the infrared regularization and the extended…

Nuclear Theory · Physics 2008-11-26 Stefan Scherer

We establish exact relations between relativistic form factors and amplitudes for single-baryon processes and the corresponding quantities calculated in the framework of heavy baryon chiral perturbation theory. A crucial ingredient for the…

High Energy Physics - Phenomenology · Physics 2009-10-30 G. Ecker , M. Mojzis

We consider an extension of the one-nucleon sector of baryon chiral perturbation theory beyond the low-energy region. The applicability of this approach for higher energies is restricted to small scattering angles, i.e. the kinematical…

High Energy Physics - Phenomenology · Physics 2015-10-09 E. Epelbaum , J. Gegelia , Ulf-G. Meißner , De-Liang Yao

We analyze the quark mass dependence of the Roper mass to one-loop order in relativistic baryon chiral perturbation theory. The loop integrals are evaluated using infrared regularization which preserves chiral symmetry and establishes a…

High Energy Physics - Lattice · Physics 2008-11-26 B. Borasoy , P. C. Bruns , U. -G. Meißner , R. Lewis

Some one-loop diagrams with one and two external baryons/nucleons are revisited using covariant baryon propagators in chiral effective theory. We showed that it is enough to separate and subtract all the local terms that violate chiral…

High Energy Physics - Theory · Physics 2021-01-01 Zhou Liu , Li-Hong Wen , J. -F. Yang

Chiral perturbation theory is the effective field theory of the strong interactions at low energies. We will give a short introduction to chiral perturbation theory for mesons and will discuss, as an example, the electromagnetic…

High Energy Physics - Phenomenology · Physics 2015-06-25 Stefan Scherer
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