11 papers
Search for the decay
Belle, Belle II Collaborations, : +432
We present the first search for decays. We look for signal decays in events produced in asymmetric-energy electron-positron collisions.…
Search for axion-like particles decaying to two photons at Belle II
Belle II Collaboration, M. Abumusabh, I. Adachi +450
Axion-like particles (ALPs) are predicted in many extensions of the Standard Model and provide a well-motivated portal between visible and hidden sectors through their coupling to…
Charged-lepton identification at Belle~II
Belle II Collaboration, M. Abumusabh, I. Adachi +409
Effective particle identification capabilities are a strategic priority for the physics program of the Belle~II experiment. We describe the algorithms used at Belle~II for identify…
First evidence of and search for
Belle, Belle II Collaborations, : +412
We search for the pionic transitions and in decays using the Belle and Belle~II data sam…
Measurement of Born cross sections for at GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +758
We report a measurement of the Born cross section and the effective form factor for the reaction at 47 center-of-mass energies between 3.510 and 4.946 GeV. The…
Observation of and Measurement of Electromagnetic Form Factors of Proton at GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov +758
We search for possible charmonium(-like) states decaying into the final state by studying the Born cross sections of the reaction, and we determine…