000003941 001__ 3941
000003941 005__ 20231030181907.0
000003941 037__ $$aBELLE2-TALK-CONF-2023-162
000003941 041__ $$aeng
000003941 088__ $$aBELLE2-TALK-DRAFT-2023-160
000003941 100__ $$aRoberto Mussa
000003941 245__ $$aExotic Hadron Spectroscopy at Belle and Belle II
000003941 260__ $$a42nd International Symposium on Physics in Collision$$c2023-10-10
000003941 300__ $$amult. p
000003941 520__ $$aSince the discovery of X(3872), Belle has been pioneering the exploration of tetraquarks, QCD bound states beyond standard mesons and baryons. More than a decade after the end of data taking, the Belle datasets are still producing results in hadron spectroscopy, and have provided the motivations for the first energy scan above the energy of the peak, between 10.65 GeV and 10.81 GeV, taken by Belle II in November 2022. This talk will present recent results on searches for the hidden bottom transitions between Y(10750) and lower bottomonia, and measurements of the energy dependence of the e+e- to B(*)B(*)bar cross section. In addition, we will show results of a search for resonant double charmonium bound states, done with Belle data, which gives insights on our future opportunities on this topic.
000003941 8560_ $$fdjaffe@bnl.gov
000003941 8564_ $$uhttps://docs.belle2.org/record/3941/files/BELLE2-TALK-CONF-2023-162.pdf