Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-10-29
AIP Conf. Proc. 717 (2004) 332-336
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 1 figure consisting of 4 eps-files; contribution to the 10th Int. Conference on "Hadron Spectroscopy" (HADRON '03), A
Scientific paper
10.1063/1.1799727
Using ideas underlying the flavour-blind "Nijmegen Unitarised Meson Model" we try to understand on the basis of a system of Schroedinger equations with one meson-meson and one (spinless) quark-antiquark channel coupled by a simple delta-shell transition potential the formation of (e.g. scalar) meson-meson scattering singularities in the complex momentum and energy plane. Surprisingly we are able to describe without direct meson-meson interaction and without any need for glueballs the whole known scalar meson spectrum. "Light" scalar mesons (e.g. f0(600), kappa(800), f0(980), a0(985), D*0(2290), ...) are identified to belong to the spectrum of the transition potential, while "heavy" scalars (e.g. f0(1370), K*0(1430), f0(1500), f0(1710), a0(1450), D*0(2621) (?), D*0(2825) (?), D*sJ(2928) (?), ...) are related to the confinement spectrum. Due to the particular value of the charm-strange reduced quark mass level-(anti)crossing in the complex momentum plane occurs which relates the BABAR state Ds(2317) to the bare groundstate of the confinement spectrum, while the respective groundstate of the transition potential ends up as D*sJ(2782) (?). We conclude with a short comment on (our) recent progress in the consistent quantum field theoretical effective description of resonances within a Lagrangian framework.
No associations
LandOfFree
The Light and Heavy Scalars in Unitarized Coupled Channel and Lagrangian Approaches does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Light and Heavy Scalars in Unitarized Coupled Channel and Lagrangian Approaches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Light and Heavy Scalars in Unitarized Coupled Channel and Lagrangian Approaches will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-199670