Hadron production by $e^{+}{e}^{–}$ annihilation at center-of-mass energies between 2.6 and 7.8 GeV. I. Total cross section, multiplicities, and inclusive momentum distributions

Journal Article · Wed Sep 01 00:00:00 EDT 1982 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.26.969· OSTI ID:1183684

Siegrist, James L. ^[1]; Schwitters, R. F. ^[1]; Alam, M. S. ^[1]; Boyarski, A. M. ^[1]; Breidenbach, M. ^[1]; Bulos, F. ^[1]; Dakin, J. T. ^[1]; Dorfan, J. M. ^[1]; Feldman, G. J. ^[1]; Fryberger, D. ^[1]; Hanson, G. ^[1]; Jaros, J. A. ^[1]; Jean-Marie, B. ^[1]; Larsen, R. R. ^[1]; Lüth, V. ^[1]; Lynch, H. L. ^[1]; Lyon, D. ^[1]; Morehouse, C. C. ^[1]; Perl, M. L. ^[1]; Peruzzi, I. ^[1] ; Piccolo, M. ^[1]; Pun, T. P. ^[1]; Rapidis, P. ^[1]; Richter, B. ^[1]; Schindler, R. H. ^[1]; Tanenbaum, W. ^[1]; Vannucci, F. ^[1]; Chinowsky, W. ^[2]; Abrams, G. S. ^[2]; Briggs, D. ^[2]; Carithers, W. C. ^[2]; Cooper, S. ^[2]; DeVoe, R. G. ^[2]; Friedberg, C. E. ^[2]; Goldhaber, G. ^[2]; Hollebeek, R. J. ^[2]; Johnson, A. D. ^[2]; Kadyk, J. A. ^[2]; Litke, A. M. ^[2]; Madaras, R. J. ^[2]; Nguyen, H. K. ^[2]; Pierre, F. M. ^[2]; Sadoulet, B. ^[2]; Trilling, G. H. ^[2]; Whitaker, J. S. ^[2]; Wiss, J. E. ^[2]

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1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Measurements of multihadron production in e⁺e⁻ annihilation at center-of-mass energies between 2.6 and 7.8 GeV are presented. Aside from the narrow resonances ψ(3095) and ψ(3684), the total hadronic cross section is found to be approximately 2.7 times the cross section for the production of muon pairs at c.m. energies below 3.7 GeV and 4.3 times the muon-pair cross section at c.m. energies above 5.5 GeV. Complicated structure is found at intermediate energies. Charged-particle multiplicities and inclusive momentum distributions are presented.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-765F00515; W-7405-ENG-48
• OSTI ID: 1183684
• Journal Information: Physical Review. D, Particles Fields, Vol. 26, Issue 5; ISSN 0556-2821: PRVDAQ
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English