000004151 001__ 4151
000004151 005__ 20240311031637.0
000004151 037__ $$aBELLE2-TALK-CONF-2024-023
000004151 041__ $$aeng
000004151 100__ $$aDmytro Meleshko
000004151 245__ $$aStudy of c c-bar c c-bar and c c-bar s s-bar at Belle
000004151 260__ $$a53. Arbeitstreffen Kernphysik 2024$$c2024-02-21
000004151 300__ $$amult. p
000004151 520__ $$aThe analyses of states with double cs content and the search for exotics have recently gained much attention. The Belle experiment collected roughly 1 ab-1 integrated luminosity data. While Belle II data-taking is in progress, we have performed a new search for exotic states and cross-section measurements with the full Belle data sets. Here we review the recent analysis of: a) e+e'-->Ds(*)+D_sJ- + c.c. from both Υ(2S) decays and continuum production at 10.52 GeV, using the Belle detector at KEKB; b) the analysis of e+e- -->eta J/psi + c.c. and search for double charmonium states; c) the study of e+e- -->D_s+D_sj(2317) and e+e- --> D_s+D_sj(2460) + anything else, in the continuum. Born cross-sections are evaluated, and a possible confirmation of the states seen in the invariant mass system of J/psiphi by LHCb in B decays has been investigated.
000004151 700__ $$aElisabetta Prencipe
000004151 700__ $$aSören Lange
000004151 8560_ $$fmeleshkodima3@gmail.com
000004151 8564_ $$uhttps://docs.belle2.org/record/4151/files/BELLE2-TALK-CONF-2024-023.pdf