Understanding masses of cs̄ states in Regge phenomenology
نویسنده
چکیده
In the framework of Regge phenomenology, masses of the charmed states cq̄ (q = u, d, s) lying on the 13S1-like trajectories are estimated. The overall agreement between our estimated masses and the recent predictions given by modified quark models[hep-ph/0605019, hep-ph/0608011, hep-ph/0608139] is good. Masses of the observed charmed statesDs0(2317), DsJ (2860) and DsJ(2690)/DsJ(2700) can be reasonably reproduced in the picture of these charmed states as simple quark-antiquark configurations. We therefore suggest theDs0(2317) can be identified as the cs̄(13P0) states. The possible assignments of the DsJ (2860) and DsJ (2690)/ DsJ(2700) are discussed.
منابع مشابه
ar X iv : h ep - p h / 98 05 28 6 v 1 1 1 M ay 1 99 8 LA - UR - 98 - 1915 Hadron Spectroscopy in Regge Phenomenology ∗
We show that linear Regge trajectories for mesons and baryons, and the cubic mass spectrum associated with them, determine expressions for the hadron masses in terms of the universal Regge slope α ′ alone. The ground state hadron masses as calculated from these expressions are in excellent agreement with experiment for α ′ = 0.85 GeV −2 .
متن کاملMeson spectrum in Regge phenomenology
Under the assumption that both light and heavy quarkonia populate approximately linear Regge trajectories with the requirements of additivity of intercepts and inverse slopes, the masses of different meson multiplets are estimated. The predictions derived from the quasi-linear Regge trajectories are in reasonable agreement with those given by many other references. E-mail:[email protected]/l...
متن کاملMatching Regge Theory to the OPE
The spectra of masses and decay constants for non-strange meson resonances in the energy range 0–2.5 GeV is analyzed. It is known from meson phenomenology that for given quantum numbers these spectra approximately follow linear trajectories with a universal slope. These facts can be understood in terms of an effective string description for QCD. For light meson states the trajectories deviate n...
متن کاملGlueball Spectroscopy in Regge Phenomenology *
We show that linear Regge trajectories for mesons and glueballs, and the cubic mass spectrum associated with them, determine a relation between the masses of the ρ meson and the scalar glueball, M (0 ++) = 3/ √ 2 M (ρ), which implies M (0 ++) = 1620 ± 10 MeV. We also discuss relations between the masses of the scalar and The existence of a gluon self-coupling in QCD suggests that, in addition t...
متن کاملStates Using Radiative Transitions
The Babar and CLEO collaborations have recently observed states decaying to D s π 0 and D s π 0 respectively and suggest the possible explanation that they are the missing P-wave cs̄ states with J = 0 and 1. In this note we compare the properties of the D sJ (2317) + and DsJ (2463) + states to those expected of the cs̄ D s0 and Ds1 states. We expect the D ∗ s0 and Ds1 with the reported masses to ...
متن کامل