Celio, R.Balbini
E+ E- --> J/PSI
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Multi-Hadronic Decays and Partial Widths of the J/psi (3100) Resonance Produced in e+ e- Annihilation at ADONE

Bacci, C. ; Baldini-Celio, R. ; Bozzo, M. ; et al.
Phys.Lett.B 58 (1975) 471-474, 1975.
Inspire Record 100017 DOI 10.17182/hepdata.27794

The reactions e + e − → hadrons and e + e + e − →e + e − have been studied at the J/gY (3100) resonance). The relative weights of the topological cross sections for fixed charged multiplicity are σ 2 =(32±5)%, σ 4 =(49±8)%, σ 6 =(18±3)%, and σ 8 =(1±0.6)%. The average pion multiplicities are 〈 n ch 〉=3.8±0.3 and 〈n π o 〉=3.1±0.8 . The decay widths are Γ e =(4.6±0.8) keV, Γ h =(59±24) keV, and Γ =(68±26) keV.

3 data tables
Table 1

CROSS SECTION AROUND RESONANCE.

Table 2

CROSS SECTION JUST BELOW J/PSI.

Table 3

MULTIPLICITY AT J/PSI.


Experimental Results on the Production And Decay Modes of the 3101 MeV Resonance at #techn{ADONE}

Baldini-Celio, R. ; Bacci, C. ;
Lett.Nuovo Cim. 11 (1974) 711, 1974.
Inspire Record 98139 DOI 10.17182/hepdata.37446

None

1 data table
Table 1

HADRONIC WIDTH IS 26 +- 11 KEV, ELECTRON DECAY WIDTH IS 3.4 +- 1.2 KEV AND MUON DECAY WIDTH IS 2.4 +- 1.1 KEV.


Preliminary Result of Frascati (ADONE) on the Nature of a New 3.1-GeV Particle Produced in e+ e- Annihilation

Bacci, C. ; Celio, R.Balbini ; Berna-Rodini, M. ; et al.
Phys.Rev.Lett. 33 (1974) 1408, 1974.
Inspire Record 90991 DOI 10.17182/hepdata.21293

We report on the results at ADONE to study the properties of the newly found 3.1-BeV particle.

1 data table
Table 1

No description provided.