5 Papers
28 Citations
S. Cooper is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Annihilation & Lepton. The author has an hindex of 5, co-authored 5 publications.
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Papers
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
James L. Siegrist,James L. Siegrist,Roy F Schwitters,Roy F Schwitters,M. S. Alam,M. S. Alam,A. M. Boyarski,Martin Breidenbach,F. Bulos,J. T. Dakin,J. T. Dakin,J. Dorfan,G. J. Feldman,D. Fryberger,G. Hanson,J. A. Jaros,B. Jean-Marie,R. R. Larsen,V. Luth,H. L. Lynch,H. L. Lynch,D. Lyon,C. C. Morehouse,C. C. Morehouse,M. L. Perl,I. Peruzzi,M. Piccolo,T. P. Pun,T. P. Pun,P. A. Rapidis,P. A. Rapidis,Burton Richter,Rafe Schindler,Rafe Schindler,W. Tanenbaum,W. Tanenbaum,F. Vannucci,F. Vannucci,W. Chinowsky,G. S. Abrams,D. Briggs,D. Briggs,William Carithers,S. Cooper,R. DeVoe,R. DeVoe,C. E. Friedberg,G. Goldhaber,R. J. Hollebeek,R. J. Hollebeek,A. D. Johnson,J. A. Kadyk,A. M. Litke,A. M. Litke,R. J. Madaras,H. K. Nguyen,H. K. Nguyen,F. M. Pierre,F. M. Pierre,B. Sadoulet,B. Sadoulet,G. H. Trilling,J. S. Whitaker,J. S. Whitaker,James E Wiss,James E Wiss +65 more
TL;DR: In this article, the authors measured multihadron production in e+e− annihilation at center-of-mass energies between 2.6 and 7.8 GeV and found that the total hadronic cross section was approximately 2.7 times the cross section for the production of muon pairs at c.m.
Experimental upper limits on branching fractions for unexpected decay modes of the lepton
Kenneth G. Hayes,Kenneth G. Hayes,M. L. Perl,Alam,Alam,A. M. Boyarski,Martin Breidenbach,D. L. Burke,J. Dorenbosch,J. Dorenbosch,J. Dorfan,G. J. Feldman,M. E. B. Franklin,G. Hanson,T. Himel,T. Himel,D. G. Hitlin,D. G. Hitlin,R. J. Hollebeek,Walter R. Innes,J. A. Jaros,P. Jenni,P. Jenni,R. R. Larsen,L̈th,Burton Richter,A. Roussarie,D. L. Scharre,Rafe Schindler,Rafe Schindler,R. F. Schwitters,J. L. Siegrist,H. Taureg,H. Taureg,M. Tonutti,M. Tonutti,R. A. Vidal,J. M. Weiss,H. Zaccone,G. S. Abrams,CA Blocker,A. Blondel,William Carithers,W. Chinowsky,M. W. Coles,S. Cooper,W. E. Dieterle,J. B. Dillon,M. W. Eaton,G. Gidal,G. Goldhaber,A. D. Johnson,J. A. Kadyk,A. J. Lankford,Michael Levi,Michael Levi,R. E. Millikan,M. E. Nelson,C. Y. Pang,J. F. Patrick,J. Strait,G. H. Trilling,E. N. Vella,I. Videau +63 more
TL;DR: In this article, the branching-ratio limits for neutrinoless decay modes of lepton-number conservation have been made using the reaction e+e+e-+- No evidence for lepton number violation is observed, and the upper limits (90% CL) on the branching ratio for each decay mode are set.
Direct photon production at the psi
D. L. Scharre,M. S. Alam,M. S. Alam,A. M. Boyarski,Martin Breidenbach,D. L. Burke,J. Dorenbosch,J. Dorfan,G. J. Feldman,M. E. B. Franklin,G. Hanson,Kenneth G. Hayes,T. Himel,T. Himel,D. G. Hitlin,D. G. Hitlin,R. J. Hollebeek,Walter R. Innes,J. A. Jaros,P. Jenni,P. Jenni,V. Luth,M. L. Perl,Burton Richter,A. Roussarie,Rafe Schindler,Rafe Schindler,R. F. Schwitters,J. L. Siegrist,H. Taureg,H. Taureg,M. Tonutti,M. Tonutti,R. A. Vidal,J. M. Weiss,H. Zaccone,G. S. Abrams,CA Blocker,William Carithers,M. W. Coles,S. Cooper,W. E. Dieterle,J. B. Dillon,M. W. Eaton,G. Gidal,G. Goldhaber,A. D. Johnson,J. A. Kadyk,A. J. Lankford,R. E. Millikan,M. E. Nelson,C. Y. Pang,J. F. Patrick,J. Strait,G. H. Trilling,E. N. Vella,I. Videau +56 more
TL;DR: In this article, a detailed analysis of inclusive direct photon production at the (3095) was presented and the direct-photon momentum distribution for x>0.4 was compared with the leading-order quantum-chromodynamic prediction.
Resonance production by two-photon interactions at spear
P. Jenni,P. Jenni,D. L. Burke,Valery I. Telnov,Valery I. Telnov,M. S. Alam,M. S. Alam,A. M. Boyarski,Martin Breidenbach,J. Dorenbosch,J. Dorenbosch,J. Dorfan,G. J. Feldman,M. E. B. Franklin,G. Hanson,Kenneth G. Hayes,Kenneth G. Hayes,T. Himel,T. Himel,D. G. Hitlin,D. G. Hitlin,R. J. Hollebeek,Walter R. Innes,J. A. Jaros,R. R. Larsen,V. Luth,M. L. Perl,Burton Richter,A. Roussarie,A. Roussarie,D. L. Scharre,Rafe Schindler,Rafe Schindler,Roy F Schwitters,J. L. Siegrist,J. L. Siegrist,H. Taureg,H. Taureg,M. Tonutti,M. Tonutti,R. A. Vidal,J. M. Weiss,J. M. Weiss,H. Zaccone,G. S. Abrams,C. A. Blocker,C. A. Blocker,A. Blondel,William Carithers,W. Chinowsky,M. W. Coles,S. Cooper,W. E. Dieterle,J. B. Dillon,M. W. Eaton,G. Gidal,G. Goldhaber,A. D. Johnson,J. A. Kadyk,A. J. Lankford,Michael Levi,Michael Levi,R. E. Millikan,M. E. Nelson,C. Y. Pang,J. F. Patrick,J. Strait,G. H. Trilling,E. N. Vella,I. Videau +69 more
TL;DR: In this article, the authors studied the two-photon interactions with the SLAC-LBL Mark II magnetic detector at SPEAR and determined upper limits on the radiative width of the f(1270), A{sub 2}(1310) and f'(1515) tensor mesons.
Measurement of the parameters of the (3770) resonance
R. H. Schindler,J. L. Siegrist,Alam,A. M. Boyarski,Martin Breidenbach,D. L. Burke,J. Dorenbosch,J. Dorfan,G. J. Feldman,M. E. B. Franklin,G. Hanson,Kenneth G. Hayes,T. Himel,D. G. Hitlin,D. G. Hitlin,R. J. Hollebeek,W. R. Innes,J. A. Jaros,P. Jenni,R. R. Larsen,L̈th,M. L. Perl,Burton Richter,D. L. Scharre,R. F. Schwitters,H. Taureg,M. Tonutti,M. Tonutti,R. A. Vidal,J. M. Weiss,H. Zaccone,G. S. Abrams,CA Blocker,W. Carithers,W. Chinowsky,M. W. Coles,S. Cooper,W. E. Dieterle,J. B. Dillon,M. W. Eaton,G. Gidal,G. Goldhaber,A. D. Johnson,J. A. Kadyk,A. J. Lankford,R. E. Millikan,M. E. Nelson,C. Y. Pang,J. F. Patrick,J. Strait,G. H. Trilling,E. N. Vella,I. Videau +52 more
TL;DR: In this paper, a measurement of the cross section for hadron production by e+e- annihilation in the vicinity of the previously observed resonance near 3.77 GeV was presented.