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Nuclear Physics | 1979

Neutron-proton differential cross sections in the range 70 to 400 GeV/c

C. E. Dehaven; C.A. Ayre; H. R. Gustafson; Lawrence W. Jones; Michael J. Longo; P. V. Ramana Murthy; T. J. Roberts; M. R. Whalley

Abstract We report the results of an experiment which measured np elastic scattering differential cross sections over a range in − t from 0.15 to ∼3.6 (GeV/ c ) 2 for incident neutron momenta from 70 to 400 GeV/ c . We find the logarithmic slope parameter, evaluated at − t = 0.2 (GeV/ c ) 2 , to be consistent with existing proton-proton parametrizations. The data exhibit a dip in the cross section near − t = 1.4 (GeV/ c ) 2 for incident neutron momenta above 200 GeV/ c . For neutron momenta less than 280 GeV/ c , the neutron-proton cross sections are found to be higher than existing proton-proton data in the range 0.7 ⩽ − t ⩽ 1.3 (GeV/ c ) 2 which is in contradiction to most Regge predictions.


New Results in High Energy Physics-1978: 3rd Vanderbilt Conference | 2008

Dimuon production by protons in Tungsten

W. P. Oliver; R. Gustafson; Lawrence W. Jones; M. J. Longo; T. J. Roberts; M. R. Whalley; D. Garelick; P.S. Gauthier; M. J. Glaubman; H. Johnstad; M. L. Mallary; J. Moromisato; E. von Goeler; Roy Weinstein; S. Childress; P. Mockett; J. P. Rutherfoord; S. R. Smith; R.W. Williams

The mass spectrum of dimuons produced by 400 GeV/c protons in Tungsten has been measured for masses greater than 7 GeV. A clear resonant signal of 2700 upsilons has been seen. The dependence of dimuon production on xF and pT has been determined for dimuon masses in the range 7.0 to 8.25 GeV as well as for masses in the upsilon region 8.25 to 9.75 GeV.


High Energy Physics-1980: 20th International Conference, Madison, Wisconsin | 1981

A high‐statistics study of dimuon production by 400 GeV/c protons

T. J. Roberts; S. Childress; D. A. Garelick; P. S. Gauthier; M. J. Glaubman; H. R. Gustafson; H. Johnstad; Lawrence W. Jones; M. J. Longo; M. L. Mallary; P. M. Mockett; J. Moromisado; W. P. Oliver; J. P. Rutherfoord; S. R. Smith; E. von Goeler; M. R. Whalley

The reaction p+W→μ+μ−+X has been measured in a high‐statistics experiment using a 400 GeV/c proton beam, a magnetized beam dump, and a wide‐acceptance detector. Abbreviated results and a comparison with the Drell‐Yan Model are presented.


Physical Review Letters | 1985

PRODUCTION DYNAMICS OF THE UPSILON IN PROTON NUCLEON INTERACTIONS

Stephen Childress; Lawrence W. Jones; P.M. Mockett; M.L. Mallary; H. Johnstad; D.A. Garelick; M. R. Whalley; S.R. Smith; J.P. Rutherfoord; M.J. Glaubman; T. J. Roberts; M. J. Longo; P.S. Gauthier; H. Richard Gustafson


Physical Review Letters | 1978

Neutron-proton elastic scattering from 70 to 400 GeV/c

C. E. Dehaven; C.A. Ayre; H. R. Gustafson; Lawrence W. Jones; M. J. Longo; P. V. Ramana Murthy; T. J. Roberts; M. R. Whalley


Physical Review Letters | 1981

Experimental test of the Drell-Yan model in p+W. --> mu. /sup +/+. mu. /sup -/+X

S. R. Smith; S. Childress; P. Mockett; J. P. Rutherfoord; R.W. Williams; H. R. Gustafson; Lawrence W. Jones; M. J. Longo; T. J. Roberts; M. R. Whalley; D. Garelick; P.S. Gauthier; M. J. Glaubman; H. Johnstad; M.L. Mallary; Jorge H. Moromisato; E. Pothier; E. von Goeler; W. P. Oliver


Archive | 1979

Inclusive Neutron Production

M. R. Whalley; H. Richard Gustafson; K. Heller; Lawrence W. Jones; Michael J. Longo; T. J. Roberts


Physical Review Letters | 1985

Production Dynamics of the in Proton-Nucleon Interactions

S. Childress; P. Mockett; J. P. Rutherfoord; S. R. Smith; H. R. Gustafson; Lawrence W. Jones; M. J. Longo; T. J. Roberts; M. R. Whalley; D. Garelick; P.S. Gauthier; M.L. Mallary; M. J. Glaubman; H. Johnstad


Physical Review Letters | 1985

Production Dynamics of theϒin Proton-Nucleon Interactions

S. Childress; P. Mockett; J. P. Rutherfoord; S. R. Smith; H. R. Gustafson; Lawrence W. Jones; M. J. Longo; T. J. Roberts; M. R. Whalley; D. Garelick; P.S. Gauthier; M. L. Mallary; M. J. Glaubman; H. Johnstad


Archive | 1980

INCLUSIVE NEUTRON PRODUCTION BY 400-GeV PROTONS

Lawrence W. Jones; M. R. Whalley; H. Richard Gustafson; K. Heller; M. J. Longo; T. J. Roberts

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M. J. Longo

University of Michigan

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S. R. Smith

University of Michigan

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P. Mockett

University of Washington

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D. Garelick

Northeastern University

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