Results 121 to 130 of about 2,429 (218)

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

A Lagrangian for the Chiral (1/2,0) Circle Plus (0,1/2) Quartet Nucleon Resonances [PDF]

, 2010
We study the nucleon and three N* resonances properties in an effective linear realization chiral SU(L)(2) x SU(R)(2) and U(A)(1) symmetric Lagrangian. We place the nucleon fields into the so-called naive (1/2, 0) circle plus (0, 1/2) and mirror (0, 1/2)
Hosaka, Atushi, Dmitrasinovic, V., Nagata, Keitaro   +2 more
core   +1 more source

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

Electromagnetic couplings of the ChPT Lagrangian from the perturbative chiral quark model [PDF]

, 2002
18 pages, 3 figuresWe apply the perturbative chiral quark model to the study of the low-energy pi-N interaction. Using an effective chiral Lagrangian we reproduce the Weinberg-Tomozawa result for the S-wave pi-N scattering lengths. After inclusion of the
Mau, R. Vinh, Lyubovitskij, V.E., Gutsche, T., Faessler, A.   +3 more
core   +1 more source

Proof of the equivalence theorem in the chiral lagrangian formalism [PDF]

, 1994
A general proof of the equivalence theorem in electroweak theories with the symmetry breaking sector described by the chiral Lagrangian is given in the Rξ gauge by means of the Ward-Takahashi identities.
Li, Xiaoyuan, Kuang, Yu Ping, He, Hong Jian   +2 more
core   +1 more source

Solitonic ground state in supersymmetric theory in background

Journal of High Energy Physics
A solitonic ground state called a chiral soliton lattice (CSL) is realized in a supersymmetric theory with background magnetic field and finite chemical potential.
Muneto Nitta, Shin Sasaki
doaj   +1 more source

Calculation of the chiral Lagrangian coefficients with light vector mesons [PDF]

We calculate the coefficients in the effective chiral Lagrangian from QCD, which includes pseudo-scalar mesons and vector mesons (with hidden symmetry), up to O(p4). This encompasses both the normal and anomalous parts.
Geng, Zi-Kan, Wang, Qing
core   +1 more source

Chiral symmetry restoration at finite temperature in a model with manifest confinement

Physics Letters B
Multiple lattice evidences support the existence of a confining but chirally symmetric regime of QCD above the chiral symmetry restoration crossover at Tch≃155 MeV.
L.Ya. Glozman, A.V. Nefediev, R. Wagenbrunn   +2 more
doaj   +1 more source

Sakai-Sugimoto model in an off-shell: Chiral Lagrangian to all orders

Journal of High Energy Physics
The Sakai-Sugimoto holographic model is famous for implementing the approximate chiral symmetry of QCD and reproducing the Chiral Lagrangian in a top-down approach.
Michael Lublinsky, Timofey Solomko
doaj   +1 more source

Nonstandard Higgs in Electroweak Chiral Lagrangian [PDF]

, 2006
We add a nonstandard higgs into the traditional bosonic part of electroweak chiral Lagrangian, in purpose of finding out the contribution to EWCL coefficients from processes with internal line higgs particle.
Wang, Li-Ming, Wang, Qing
core   +1 more source