Results 61 to 70 of about 1,708,127 (184)
Melting Spectral Functions of the Scalar and Vector Mesons in a Holographic QCD Model [PDF]
Phys.Rev.D81:065024,2010, 2009 We investigate the finite-temperature spectral functions of heavy quarkonia by using the soft-wall AdS/QCD model. We discuss the scalar, the pseudo-scalar, the vector, and the axial-vector mesons and compare their qualitative features of the melting temperature and growing width.
arxiv +1 more source
Vector meson masses from a hidden local symmetry in a constant magnetic field [PDF]
, 2015 We discuss the magnetic responses of vector meson masses based on the hidden local symmetry (HLS) model in constant magnetic field, described by the lightest two-flavor system including the pion, rho and omega mesons in the spectrum. The effective masses
Mamiya Kawaguchi, S. Matsuzaki
semanticscholar +1 more source
Exclusive vector meson production at high energies and gluon saturation [PDF]
Symposium on Designing Interactive Systems, 2014 We systematically study exclusive diffractive (photo) production of vector mesons ($J/\psi$, $\psi(2s)$, $\phi$ and $\rho$) off protons in high-energy collisions and investigate whether the production is a sensitive probe of gluon saturation. We confront
N. Armesto, A. Rezaeian
semanticscholar +1 more source
Charged and neutral vector meson under magnetic field [PDF]
, 2014 The vector meson $\rho$ in the presence of external magnetic field has been investigated in the framework of the Nambu--Jona-Lasinio model, where mesons are constructed by infinite sum of quark-loop chains by using random phase approximation.
Hao-yu Liu, Lang Yu, Mei Huang
semanticscholar +1 more source
The fate of $$\mathbf{V}_\mathbf{1}$$ V 1 vector leptoquarks: the impact of future flavour data
European Physical Journal C: Particles and Fields, 2021 Motivated by the recent experimental progress on the B-meson decay anomalies (in particular the angular observables in $$B\rightarrow K^*\mu \mu $$ B → K ∗ μ μ ), we rely on a simplified-model approach to study the prospects of vector leptoquarks in what
C. Hati +3 more
doaj +1 more source
Light vector meson photoproduction in hadron-hadron and nucleus-nucleus collisions at energies available at the CERN Large Hadron Collider [PDF]
, 2014 In this work we analyse the theoretical uncertainties on the predictions for the photoproduction of light vector mesons in coherent pp, pA and AA collisions at the LHC energies using the color dipole approach.
G. Santos, M. Machado
semanticscholar +1 more source
The pion pole in hard exclusive vector-meson leptoproduction [PDF]
European Physical Journal A, 2014 Exploiting a set of generalized parton distributions (GPDs) derived from analyses of hard exclusive leptoproduction of ρ0, φ and π+ mesons, we investigate the ω spin density matrix elements (SDMEs) recently measured by the HERMES Collaboration.
S. Goloskokov, P. Kroll
semanticscholar +1 more source
Scalar and axial-vector mesons [PDF]
The European Physical Journal A, 2007 Nowadays, there exists an abundance of theoretical approaches towards the mesonic spectrum, ranging from confinement models of all kinds, i.e., glueballs, and quark-antiquark, multiquark and hybrid configurations, to models in which only mesonic degrees of freedom are taken into account.
George Rupp, Eef van Beveren
openaire +3 more sources
EPJ Web of Conferences, 2014 We discuss the CMS capabilities of measuring vector mesons in pp and heavyion collisions based on the recent results of the exclusive dilepton and diboson production. Studies evaluating the detection of exclusive J/ψ and ϒ vector meson photoproduction in
da Silveira Gustavo Gil
doaj +1 more source
Vector meson spectral function and dilepton production rate in a hot and dense medium within an effective QCD approach [PDF]
, 2014 A bstractThe properties of the vector meson current-current correlation function and its spectral representation are investigated in details with and without isoscalar-vector interaction within the framework of effective QCD approach, namely Nambu-Jona ...
Chowdhury Aminul Islam +3 more
semanticscholar +1 more source