PossibleS-wave bound-states of two pseudoscalar mesons

Abstract

Using the potentials derived from vector-meson-exchanges, the KK, DK, BK, DD, BB, BD ,DK, BK and BD systems are studied. Possible S-wave bound-states of two pseudoscalar mesons are discussed. We find that systems of DB, DD, BB and DK with isospin 0 are likely to form S-wave bound states via strong interactions while the others are unlikely to be bound by the strong interaction sector alone. With the Coulomb potential, the K + K − system can form an atomic bound state -the kaonium. The influence of the one-meson-exchange potential on the ground state energy of the kaonium and its decay widths to ππ and πη are evaluated.

Reanalysis of thee+e−→(D*Torres1, Khemchandani2, Navarra3 et al. 2014Phys. Rev. D19150View full textAdd to dashboardCite

“…[3] it was shown that the bump was better interpreted in terms of a DD molecular state, below the DD threshold (so called X(3700)), that had been predicted in Ref. [4] and has also been found theoretically in other works [5][6][7][8][9]. Similarly, in Ref.…”

Prediction of anI=1DD¯*state and relationship to the claimedAceti1, Bayar2, Oset3 et al. 2014Phys. Rev. D13141260View full textAdd to dashboardCite

“…In this sense, a bound state of DD was theoretically found in [6] and tentatively called X(3700). Other works have also reported on this possibility [7][8][9][10][11][12]. Subsequently, experimental support for such a state was found in [13] from a bump close to the threshold of the DD invariant mass distribution in the e + e → J/ψDD reaction [14].…”

Dynamically generated open and hidden charm meson systems

“…We should also note that with a different formalism using the Schrödinger equation with one vector-meson exchange potential, D D states also appear for some choices of a cutoff parameter in [48].…”