2014/02/04 by H. Kawamura, Kawamura, H., S. Kumano +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.48550/arxiv.1402.0623
5pages, 4 figures, talk given at XV International Conference on Hadron Spectroscopy (Hadron 2013), Nara, Japan, 4-8 November 2013; minor corrections, a reference added
arxiv created 2014/02/10 · arxiv updated 2014/02/11
We consider hard exclusive production of exotic hadrons to study their internal structure. Revisiting the constituent-counting rule for the large-angle exclusive scattering, we discuss general features expected for the production cross section of exotic hadrons whose leading Fock states are given by multi-quark states other than the ordinary baryon (qqq) or meson (qq) states.We take the production of Λ(1405) as an example and propose to study its partonic configuration from the asymptotic scaling of the cross section, which is measurable at J-PARC. We also discuss the production of a pair of the light-hadrons such as f0(980)s and a0(980)s in γ^*γ collisions in the framework of QCD factorization, in which the cross section is expressed as a convolution of the perturbative coefficients and the generalized distribution amplitudes (GDAs). We demonstrate how the internal structure of f0(980) or a0(980) can be explored by measuring the GDAs at e+e- experiments such as the B-factories.