Results 71 to 80 of about 261,774 (343)

The non-perturbative unquenched quark model

open access: yesEPJ Web of Conferences, 2017
In recent years states in the quarkonium spectrum not expected in the naive quark model have appeared and created a lot of interest. In the theoretical side the study of the effect of meson-meson thresholds in the spectrum have been performed in ...
Entern D.R., Ortega P.G., Fernández F.
doaj   +1 more source

Present and Future K and B Meson Mixing Constraints on TeV Scale Left-Right Symmetry [PDF]

open access: yes, 2014
We revisit the Δ F = 2 transitions in the K and B d , s neutral meson systems in the context of the minimal left-right symmetric model. We take into account, in addition to up-to-date phenomenological data, the contributions related to the ...
S. Bertolini, Alessio Maiezza, F. Nesti
semanticscholar   +1 more source

Convergence of the barycentre of measures from Fuchsian action groups [PDF]

open access: yes, 2013
We prove the pointwise ergodic convergence of the sequence of barycentres of empirical measures which are defined from the action of Fuchsian groups and by maps valuated in CAT(0)−spaces.
Meson, Alejandro Mario   +1 more
core   +2 more sources

Effective meson masses, effective meson-nucleon couplings and neutron star radii

open access: yes, 2004
Using the generalized mean field theory, we have studied the relation among the effective meson masses, the effective meson-nucleon couplings and the equation of state (EOS) in asymmetric nuclear matter.
AKIRA HASEGAWA   +12 more
core   +2 more sources

On the  -meson [PDF]

open access: yesProgress of Theoretical Physics, 1953
Recently O'Ceallalghl ) has found m the cosmic ray a new heavy meson (x-meson), which seems todistntegrate mto one charged J.I-meson and one or more neutral particles_ He also has found the lifetime of a new particle IS about 10-9 . sec. As the experimental facts seem to indicate us that x-meson distntegrates at least into three seccndary particles, we
openaire   +2 more sources

Meson-meson interactions in a nonperturbative chiral approach [PDF]

open access: yesPhysical Review D, 1999
27 pages, 12 figures.
Oller, JA   +2 more
openaire   +6 more sources

The Quest for the Quark‐Gluon Plasma From the Perspective of Dynamical Models of Relativistic Heavy‐Ion Collisions

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley   +1 more source

Measurement of the fragmentation fraction ratio fs/fd and its dependence on B meson kinematics [PDF]

open access: yes, 2013
A bstractThe relative production rate of $ B_s^0 $ and B0 mesons is determined with the hadronic decays $ B_s^0\to D_s^{-}{\pi^{+}} $ and B0 → D−K+.
R. Aaij   +499 more
semanticscholar   +1 more source

Exclusive vector meson production at high energies and gluon saturation [PDF]

open access: yesSymposium 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

Omega photoproduction

open access: yes, 2002
Photoproduction of omega-meson is analyzed within meson exchange model and Regge model and compared to rho-meson photoproduction. An interplay between two models and uncertainties in data reproduction are discussed.Comment: Presented at Meson 2002, 7th ...
Krewald, S., Sibirtsev, A., Tsushima, K.
core   +2 more sources

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