Cross section measurements of e+e− → pp¯π0 at center-of-mass energies between 4.008 and 4.600 GeV 后印本

摘要: Based on e+e− annihilation data samples collected with the BESIII detector at the BEPCII collider at 13 center of mass energies from 4.008 to 4.600 GeV, measurements of the Born cross section of e+e− → pp¯π0 are performed. No significant resonant structure is observed in the measured energy-dependent cross section. The upper limit on the Born cross section of e+e− → Y (4260) → pp¯π0 at the 90% C.L. is determined to be 0.01 pb.