D meson


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Related to D meson: B meson, K meson, Rho meson

D meson

n.
Either of two mesons, one neutral and one positively charged, containing a charm quark and having masses 3,649 and 3,658 times that of an electron and mean lifetimes of about 4.2 × 10-13 and 1.04 × 10-12 second, respectively.
References in periodicals archive ?
A comparative study has been introduced for the mass spectrum and decay properties for the D meson with the quark-antiquark potential using hydrogeometric and Gaussian wave function [64].
The masses of the scalar mesons are presented in Table 4; the value of D meson is close to the experimental value.
Stocker, "Mass modification of D meson in hot hadronic matter," Physical Review C, vol.
In this work it was observed that the medium modifications of charmed hadrons do not lead to appreciable changes in cross-section for D mesons production.
Among them are calculations focused on D mesons, which also contain charm quarks.
Obtained results for masses of B and D mesons are in good agreement with the available experimental data.
For example the only precise value of decay constant is known for D mesons, and systematics are evaluated.
Instead of B mesons, the Cornell physicists are investigating the properties of D mesons, which contain the charm-or c-quark.
As a result, experimental physicists will use the Cornell results and theorists will use lattice-QCD techniques to independently determine the contributions from the particle commotion inside of D mesons.
Jaus, "Semileptonic decays of B and D mesons in the light-front formalism," Physical Review D: Particles, Fields, Gravitation and Cosmology, vol.
Depending on which kind of force animates the decay, the U.sup.+, for example, could be a combination of a strange quark, an up quark and two anti-down quarks, or a combination of two D mesons. Either is "quite crazy" by conventional theory, Siebert says.