Results 51 to 60 of about 15,240 (207)

Phenomenology of heavy meson chiral lagrangians [PDF]

Physics Reports, 1997
The approximate symmetries of Quantum ChromoDynamics in the infinite heavy quark ($Q=c,b$) mass limit ($m_Q \to \infty$) and in the chiral limit for the light quarks ($m_q \to 0,\;q=\,u,\,d,\,s$) can be used together to build up an effective chiral lagrangian for heavy and light mesons describing strong interactions among effective meson fields as well
Casalbuoni, R., Deandrea, A., Di Bartolomeo, N., Feruglio, F., Gatto, R., Nardulli, G.   +5 more
openaire   +2 more sources

Quantum GraviElectro Dynamics

Annalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

One-loop analysis of the interactions between doubly charmed baryons and Nambu-Goldstone bosons

Journal of High Energy Physics, 2023
The interactions between the spin-1/2 doubly charmed baryons and Nambu-Goldstone bosons are analyzed within a manifestly relativistic baryon chiral perturbation theory up to next-to-next-to leading order, by using the so-called extended-on-mass-shell ...
Ze-Rui Liang, Peng-Cheng Qiu, De-Liang Yao   +2 more
doaj   +1 more source

Topological Quasiparticles of Light: From Spin‐Orbit Coupling to Photonic Skyrmions

Laser &Photonics Reviews, Volume 19, Issue 24, December 17, 2025.
This review summarizes recent advances in photonic skyrmions, emphasizing the central role of spin–orbit coupling in their formation. The review discusses how spin–orbit interactions generate skyrmionic textures, examines modulation strategies for their dynamic control, and provides an overview of emerging directions and opportunities where these ...
Xinrui Lei, Qiwen Zhan
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

Heating neutron stars with GeV dark matter

Journal of High Energy Physics, 2020
An old neutron star (NS) may capture halo dark matter (DM) and get heated up by the deposited kinetic energy, thus behaving like a thermal DM detector with sensitivity to a wide range of DM masses and a variety of DM-quark interactions.
Wai-Yee Keung, Danny Marfatia, Po-Yan Tseng   +2 more
doaj   +1 more source

The equivalence theorem for chiral lagrangians [PDF]

Physics Letters B, 1994
In this work we derive the version of the Equivalence Theorem that applies when the symmetry breaking sector of the Standard Model is described by a general chiral lagrangian. The demonstration is valid for renormalized fields for any value of the gauge parameter (in $R_ $ gauges) and any parametrization of the coset space.
Dobado González, Antonio, Peláez Sagredo, José Ramón   +1 more
openaire   +4 more sources

Mesonic low-energy constants

, 2014
We review the status of the coupling constants of chiral Lagrangians in the meson sector, the so-called low-energy constants (LECs). Special emphasis is put on the chiral $SU(2)$ and $SU(3)$ Lagrangians for the strong interactions of light mesons.
Bijnens, Johan, Ecker, Gerhard
core   +1 more source

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

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, Joachim Brod, Benjamin Grinstein, Jure Zupan   +3 more
doaj   +1 more source