Results 111 to 120 of about 62,213 (219)

Large-N_c operator analysis of 2-body meson-baryon counterterms in the chiral Lagrangian

, 2010
The chiral SU(3) Lagrangian with the baryon octet and decuplet fields is considered. The Q^2 counterterms involving the decuplet fields are constructed. We derive the correlation of the chiral parameters implied by the 1/N_c expansion at leading order in
Lutz, M. F. M., Semke, A.
core   +1 more source

Quark models and chiral lagrangians

Nuclear Physics B, 1990
Abstract We consider the description of low-energy hadronic physics in terms of quark models, and explore its connection with chiral lagrangians. The chiral lagrangians with four derivatives arising from the interactions of the Goldstone bosons with quarks are calculated.
M. Praszałowicz, G. Valencia
openaire   +1 more source

Refining the scalar and tensor contributions in τ → πππν τ decays

Journal of High Energy Physics, 2017
In this article we analyze the contribution from intermediate spin-0 and spin-2 resonances to the τ → νπππ decay by means of a chiral invariant Lagrangian incorporating these mesons.
Juan José Sanz-Cillero, Olga Shekhovtsova   +1 more
doaj   +1 more source

The chiral effective pion-nucleon Lagrangian of order p^4

, 2000
We construct the minimal effective chiral pion-nucleon SU(2) Lagrangian at fourth order in the chiral expansion. The Lagrangian contains 118 in principle measurable terms.
Baur, Becher, Bernard, Bernard, Bernard, Bijnens, Coleman, Ecker, Ecker, Ellis, Fearing, Fettes, Gasser, Gasser, Jenkins, Krause, Martin Mojžiš, Meißner, Müller, Nadia Fettes, Smilga, Sven Steininger, Ulf-G. Meißner, Weinberg   +23 more
core   +1 more source

Dynamical vector resonances from the EChL in VBS at the LHC: the WW case

Journal of High Energy Physics, 2019
In this work we study the phenomenology of the process pp → W + W − jj at the LHC, in the scenario of the resonant vector boson scattering subprocess W + W − → W + W − which we describe within the effective field theory framework of the Electroweak ...
R.L. Delgado, C. Garcia-Garcia, M.J. Herrero   +2 more
doaj   +1 more source

Hadronic interactions from effective chiral Lagrangians of quarks and gluons [PDF]

, 1996
Effective chiral Lagrangians involving constituent quarks, Goldstone bosons and long-distance gluons are believed to describe the strong interactions in an intermediate energy region between the confinement scale and the chiral symmetry breaking scale ...
Krein, G.
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Infrared enhancement of supersymmetry in four dimensions

Journal of High Energy Physics, 2018
We study a recently-found class of RG flows in four dimensions exhibiting enhancement of supersymmetry in the infrared, which provides a lagrangian description of several strongly-coupled N=2 SCFTs.
Simone Giacomelli
doaj   +1 more source

Four-nucleon contact interactions from holographic QCD

, 2011
We calculate the low energy constants of four-nucleon interactions in an effective chiral Lagrangian in holographic QCD. We start with a D4-D8 model to obtain meson-nucleon interactions and then integrate out massive mesons to obtain the four-nucleon ...
A Hosaka, BD Serot, C Ordonez, C-H Lee, D Montano, DB Kaplan, DB Kaplan, Deokhyun Yi, DK Hong, DK Hong, E Epelbaum, E Witten, G Brown, G Ecker, G Gelmini, G Gibbons, K Saito, L Girlanda, ME Luke, Piljin Yi, R Machleidt, RF Dashen, S Gubser, S Weinberg, T Sakai, T Sakai, VB Berestetskiı, Y Kim, Youngman Kim   +28 more
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Derivation of Electroweak Chiral Lagrangian from One Family Technicolor Model

, 2009
Based on previous studies deriving the chiral Lagrangian for pseudo scalar mesons from the first principle of QCD in the path integral formalism, we derive the electroweak chiral Lagrangian and dynamically compute all its coefficients from the one family
HONG-HAO ZHANG, KAI-XI FENG, QING WANG, SHAO-ZHOU JIANG, Wang X. L., Wang X. L.   +5 more
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Calculation of the Chiral Lagrangian Coefficients from the Underlying Theory of QCD: A Simple Approach

, 2002
We calculate the coefficients in the chiral Lagrangian approximately from QCD based on a previous study of deriving the chiral Lagrangian from the first principles of QCD in which the chiral Lagrangian coefficients are defined in terms of certain Green's
B. Holdom, B. Holdom, B. Holdom, B. Holdom, B. Holdom, C. D. Roberts, D. Espriu, D. Espriu, E. Witten, H. Pagels, H.-J. He, Hua Yang, J. Gasser, J. Gasser, K. Higashijima, K. I. Aoki, M. A. Shifman, P. D. Simic, P. Jain, Q. Wang, Qin Lu, Qing Wang, S. Weinberg, S.-H. H. Tye, V. A. Miransky, Y.-B. Dai, Y.-B. Dai, Yu-Ping Kuang   +27 more
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