Results 81 to 90 of about 15,240 (207)

Hidden-charm and hidden-bottom molecular pentaquarks in chiral effective field theory

Journal of High Energy Physics, 2019
The newly observed P c (4312), P c (4440) and P c (4457) at the LHCb experiment are very close to the Σ c D ¯ $$ {\varSigma}_c\overline{D} $$ and Σ c D ¯ ∗ $$ {\varSigma}_c{\overline{D}}^{\ast } $$ thresholds.
Bo Wang, Lu Meng, Shi-Lin Zhu
doaj   +1 more source

Effective Lagrangians for Orientifold Theories

, 2003
We construct effective Lagrangians of the Veneziano-Yankielowicz (VY) type for two non-supersymmetric theories which are orientifold daughters of supersymmetric gluodynamics (containing one Dirac fermion in the two-index antisymmetric or symmetric ...
A. Armoni, A. Armoni, A. Armoni, A. Aurilia, A. Donini, A. Feo, A. Kovner, A. Masiero, A. Mócsy, A. Salomone, A.A. Migdal, C. Angelantonj, C. Rosenzweig, D.G. Cerdeno, E. Witten, F. Cachazo, F. Sannino, F. Sannino, F. Sannino, F. Sannino, G. Veneziano, G.R. Farrar, H. Gomm, I. Hinchliffe, I. Montvay, J. Ellis, J. Hisano, J. Schechter, J.M. Cornwall, J.M. Cornwall, K. Kawarabayashi, M. Shifman, M.A. Shifman, M.A. Shifman, M.A. Shifman, N. Evans, N. Evans, N. Evans, N.M. Davies, P. Di Vecchia, P. Nath, S. Ferrara, S.D. Hsu, V.A. Novikov, V.A. Novikov, V.A. Novikov   +45 more
core   +2 more sources

Generation of Electric Current by Magnetic Field at the Boundary: Quantum Scale Anomaly Versus Semiclassical Meissner Current Outside of the Conformal Limit

Advanced Physics Research, Volume 4, Issue 7, July 2025.
The paper discusses the role of scale anomaly in generating edge electric currents via the scale magnetic effect in scalar electrodynamics. Although the boundary electric current is much weaker than the Meissner current induced in superconducting materials, the scale anomaly can enhance conductivity near the boundary of the material.
Maxim Chernodub, Vladimir Goy, Alexander Molochkov   +2 more
wiley   +1 more source

An effective strong-coupling theory of composite particles in UV-domain

Journal of High Energy Physics, 2017
We briefly review the effective field theory of massive composite particles, their gauge couplings and characteristic energy scale in the UV-domain of UV-stable fixed point of strong four-fermion coupling, then mainly focus the discussions on the decay ...
She-Sheng Xue
doaj   +1 more source

Charmonium Absorption in the Meson-exchange Model [PDF]

, 2002
We review the meson-exchange model for charmonium absorption by hadrons. This includes the construction of the interaction Lagrangians, the determination of the coupling constants, the introduction of form factors, and the predicted cross sections for $J/
Abreu, Ahmed, Anderson, Armesto, Blaizot, C.M. Ko, Cassing, Cassing, Chan, Dura˜es, Haglin, Haglin, Ivanov, Lin, Lin, Lin, Lin, Liu, Matheus, Matinyan, Matsui, Narrava, Narrava, Navarra, Oh, Sibirtsev, Wong, Zi-wei Lin   +27 more
core   +2 more sources

Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect

Advanced Physics Research, Volume 4, Issue 7, July 2025.
This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò, Mario Cretì, Stefano Lionetti, Dario Melle, Riccardo Tommasi   +4 more
wiley   +1 more source

Flavor decomposition of the pion-nucleon σ-term

Journal of High Energy Physics, 2019
We re-analyze the flavor decomposition of the pion-nucleon σ-term in the framework of baryon chiral perturbation to fourth order. We employ a covariant and the heavy baryon framework including also the low-lying decuplet.
Daniel Severt, Ulf-G. Meißner, Jambul Gegelia   +2 more
doaj   +1 more source

Chiral Lagrangians with tensor sources

, 2007
The implementation of tensor sources in Chiral Lagrangians allows the computation of Green functions and form factors involving tensor currents, that is, quark bilinears of the form \bar{q}_i\sigma^{\mu\nu}q_j.
Donato Creanza, Eugenio Nappi, Fulvia De Fazio, Giuseppe Nardulli, Pietro Colangelo, Rosa Anna Fini, V. Mateu   +6 more
core   +1 more source

Quantum Anomalies in Condensed Matter

Advanced Physics Research, Volume 4, Issue 7, July 2025.
Quantum materials provide a fertile ground in which to test and realize quantum anomalies predicted by quantum field theory. Quantum anomalies need to be canceled globally, however, quantum states with a quantum anomaly can exist at the boundary of topological materials.
Michael T. Pettes, Shi‐Zeng Lin, Elizabeth A. Peterson, Jian‐Xin Zhu, Laurel E. Winter, Johanna C. Palmstrom, Jinkyoung Yoo, Nicholas S. Sirica, Prashant Padmanabhan, Priscila F. S. Rosa, Sean M. Thomas, Avadh Saxena   +11 more
wiley   +1 more source

Dynamical axions and gravitational waves

Journal of High Energy Physics, 2019
In this paper we explore the possibility of observable gravitational waves as a manifestation of the QCD axion dynamics. In particular, we focus on dynamical axion models which solve the strong CP problem, and include the confinement of a QCD-like gauge ...
Djuna Croon, Rachel Houtz, Verónica Sanz   +2 more
doaj   +1 more source