Results 71 to 80 of about 15,261 (206)
On the minimality of the order p 6 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 p^6 is presented. The procedure can be used to establish if the basis of operators in the Lagrangian is minimal. As an example, we apply the method to the two-flavour case in the absence of scalar and pseudo-scalar sources (s=p=0), and ...
Ruiz-Femenía, Pedro +1 more
openaire +4 more sources
Magnetic Hopfions as Local Rotations of the Uniform Magnetization Background
physica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 12, December 2025.The Hopf mapping of 3D coordinate space to the unit sphere m2 = 1 in the magnetization space m(r) can be parametrized by some angles. These angles are used to define a local rotation matrix to restore the hopfion magnetization configuration from the uniformly magnetized state for any Hopf indices.
Konstantin Y. Guslienko
wiley +1 more source
The pion mass and decay constant at three loops in two-flavour chiral perturbation theory
Journal of High Energy Physics, 2017 A calculation of the pion mass and decay constant at NNNLO in two-flavour chiral perturbation theory is presented. The results are cross-checked by using both the exponential and square root parametrizations of the Goldstone matrix field, as well as by ...
Johan Bijnens, Nils Hermansson Truedsson
doaj +1 more source
Superparticle actions from superfields
, 1994 Gauge invariant complex covariant actions for superparticles are derived from the field equations for the chiral superfields in a precise manner. The massive and massless cases in four dimensions are treated both free and in interaction with an external ...
Boulware +21 more
core +1 more source
Electroweak chiral Lagrangian and new precision measurements [PDF]
Physical Review D, 1993 21 pages, LaTex, 2 figures (not included), YCTP-P7 ...
Appelquist, T., Wu, G.
openaire +3 more sources
Small Science, Volume 5, Issue 12, December 2025.This review comprehensively explores the structural configurations, properties, and applications of graphene variants—including monolayer, multilayer, and functionalized forms (graphene oxide, rGO, composites). It discusses fabrication techniques (mechanical exfoliation, chemical vapor deposition, epitaxy) and advanced mechanical characterization ...
Ashfaqul Hoque Khadem +2 more
wiley +1 more source
From quarks to nucleons in dark matter direct detection
Journal of High Energy Physics, 2017 We provide expressions for the nonperturbative matching of the effective field theory describing dark matter interactions with quarks and gluons to the effective theory of nonrelativistic dark matter interacting with nonrelativistic nucleons.
Fady Bishara +3 more
doaj +1 more source
Towards an effective field theory for vector mesons [PDF]
, 2012 The assumption that vector mesons dominate the interactions of hadrons with electromagnetism (vector-meson dominance - VMD) provides an important phenomenological concept.
Leupold, Stefan, Terschlusen, Carla
core +1 more source
Effective Lagrangians and chiral random matrix theory [PDF]
Physical Review D, 1995 Recently, sum rules were derived for the inverse eigenvalues of the Dirac operator. They were obtained in two different ways: i) starting from the low-energy effective Lagrangian and ii) starting from a random matrix theory with the symmetries of the Dirac operator. This suggests that the effective theory can be obtained directly from the random matrix
Halasz, M. A., Verbaarschot, J. J. M.
openaire +3 more sources
Fortschritte der Physik, Volume 73, Issue 9-10, October 2025.Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis +3 more
wiley +1 more source