Results 91 to 100 of about 304 (178)

Hadron Spectroscopy

, 2011
Advances in experiment, theory and phenomenology of hadron spectroscopy are discussed. We focus on specific developments in the meson sector.
openaire   +2 more sources

Generalized boost transformations in finite volumes and application to Hamiltonian methods

Journal of High Energy Physics
The investigation of hadron interactions within lattice QCD has been facilitated by the well-known quantisation condition, linking scattering phase shifts to finite-volume energies.
Yan Li, Jia-Jun Wu, T.-S. H. Lee, R. D. Young   +3 more
doaj   +1 more source

Energy momentum tensor on and off the light cone: exposition with scalar Yukawa theory

Journal of High Energy Physics
We compute the gravitational form factors A i , D i and c ¯ i $$ {\overline{c}}_i $$ of the scalar Yukawa theory using both the light-cone and covariant perturbation theory at the one-loop level.
Xianghui Cao, Siqi Xu, Yang Li, Guangyao Chen, Xingbo Zhao, V. A. Karmanov, J. P. Vary   +6 more
doaj   +1 more source

Finite volume Hamiltonian method for two-particle systems containing long-range potential on the lattice

Journal of High Energy Physics
We propose a systematic method to block-diagonalize the finite volume effective Hamiltonian for two-particle systems with arbitrary spin in both the rest and moving frame.
Kang Yu, Guang-Juan Wang, Jia-Jun Wu, Zhi Yang   +3 more
doaj   +1 more source

Two-photon exchange in (muonic) deuterium at N3LO in pionless effective field theory. [PDF]

Eur Phys J A Hadron Nucl, 2022
Lensky V, Hagelstein F, Pascalutsa V.
europepmc   +1 more source

Spectral parameters of the ρ resonance from lattice QCD

Journal of High Energy Physics
We present a lattice QCD investigation of the ρ resonance using nine N f = 2 + 1 Wilson-Clover ensembles with three lattice spacings and various pion masses ranging from 135 to 320 MeV. For each ensemble, a large number of finite volume energy levels are
The CLQCD collaboration, Zhengli Wang, Derek B. Leinweber, Chuan Liu, Liuming Liu, Peng Sun, Anthony W. Thomas, Jia-jun Wu, Hanyang Xing, Kang Yu   +9 more
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

D 1 and D 2 resonances in coupled-channel scattering amplitudes from lattice QCD

Journal of High Energy Physics
Isospin-1/2 charmed axial-vector D ∗ π − D ∗ η − D s ∗ K ¯ $$ {D}_s^{\ast}\overline{K} $$ scattering amplitudes are computed, along with interactions in several other I = 1/2 J P channels. Using lattice QCD, we work at a light-quark mass corresponding to
Nicolas Lang, David J. Wilson, for the Hadron Spectrum collaboration   +2 more
doaj   +1 more source

DK/Dπ scattering and an exotic virtual bound state at the SU(3) flavour symmetric point from lattice QCD

Journal of High Energy Physics
Elastic S-wave scattering of a charm meson with a light pseudoscalar meson in J P = 0+ is investigated in the flavour 3 ¯ $$ \overline{\textbf{3}} $$ , 6 and 15 ¯ $$ \overline{\textbf{15}} $$ sectors at the SU(3) f flavour point using lattice QCD ...
J. Daniel E. Yeo, Christopher E. Thomas, David J. Wilson, for the Hadron Spectrum collaboration   +3 more
doaj   +1 more source

Lattice QCD calculation of the pion distribution amplitude with domain wall fermions at physical pion mass

Journal of High Energy Physics
We present a direct lattice QCD calculation of the x-dependence of the pion distribution amplitude (DA), which is performed using the quasi-DA in large momentum effective theory on a domain-wall fermion ensemble at physical quark masses and spacing a ≈ 0.
Ethan Baker, Dennis Bollweg, Peter Boyle, Ian Cloët, Xiang Gao, Swagato Mukherjee, Peter Petreczky, Rui Zhang, Yong Zhao   +8 more
doaj   +1 more source