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SUMMARY:Charmonia production in e+e- annihilation at center-of-mass energi
 es above 3.81 GeV
DTSTART;VALUE=DATE-TIME:20241024T140000Z
DTEND;VALUE=DATE-TIME:20241024T142000Z
DTSTAMP;VALUE=DATE-TIME:20260808T133417Z
UID:indico-contribution-4381@cern.ch
DESCRIPTION:Speakers: Olga Bakina (Joint Institute for Nuclear Research)\n
 We present measurements of charmonia production cross sections in e+e- ann
 ihilation at center-of-mass energies from 3.81 GeV to 4.95 GeV at BESIII. 
 The number of observed vector states in this energy region exceeds that of
  the predicted vector charmonium states. These features suggest that some 
 of these supernumerary vector states are candidates of an exotic nature. T
 o clarify the nature of these states and to distinguish between the differ
 ent theoretical models\, precise measurements of the production cross sect
 ion and of the resonance parameters are essential.\n\nhttps://indico.parti
 cle.mephi.ru/event/436/contributions/4381/
LOCATION: Petrovskiy 2
URL:https://indico.particle.mephi.ru/event/436/contributions/4381/
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