X (3872) production from reactions involving D and D* mesons

Hadronic D Decays Involving Scalar Mesons

The nonleptonic weak decays of charmed mesons into a scalar meson and a pseudoscalar meson are studied. The scalar mesons under consideration are σ [or f0(600)], κ, f0(980), a0(980) and K 0 (1430). A consistent picture provided by the data suggests that the light scalars below or near 1 GeV form an SU(3) flavor nonet and are predominately the q2q̄2 states, while the scalar mesons above 1 GeV can...

Asymmetries between the production of D + and D � mesons from 500 GeV = c � - nucleus

Coupled channel description for X(3872) and other XYZ mesons

We have performed a coupled channel calculation of the 1 ++ c ¯ c sector including q ¯ q and q ¯ qq ¯ q configurations. The calculation was done within a constituent quark model which successfully describes the meson spectrum, in particular the c ¯ c 1 −− sector. Two and four quark configurations are coupled using the 3 P 0 model. The elusive X(3872) meson appears as a mixture of 2P c ¯ c state...

Production of the X( 3872) in B-meson decay by the coalescence of charm mesons.

If the recently discovered charmonium state X( 3872) is a loosely bound S-wave molecule of the charm mesons D0 D(*0) or D(*0) D0, it can be produced in B-meson decay by the coalescence of charm mesons. If this coalescence mechanism dominates, the ratio of the differential rate for B+ -->D(0) D(* 0)K+ near the D0 D(*0) threshold and the rate for B+ -->XK+ is a function of the D0 D(*0) invariant ...

Charm Production and Cross Sections for D Mesons

New high statistics, high resolution fixed target experiments producing 10 10 fully reconstructed charm particles are allowing a detailed study of the charm sector. Recent results on charm quark production from Fermilab fixed target experiments E-791, SELEX and FOCUS are presented. INTRODUCTION This review contains recent results from three Fermilab fixed target experiments dedicated to study c...