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Proposal for a Program of Muon Scattering at High Intensity

Technical Report ·
DOI:https://doi.org/10.2172/2571259· OSTI ID:2571259
 [1];  [1];  [1];  [2];  [2];  [2]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. Harvard Univ., Cambridge, MA (United States)
+ Show Author Affiliations
The great current interest in short distance photon phenomena in both the spacelike and timelike regions of four momentum transfer grew out of the phenomenon of scaling as observed in the inclusive ep scattering through a program of experiments at SLAC. Now, the first results of muon-nucleus inclusive scattering at FNAL and preliminary measurements of muon-nucleon scattering (both inclusive and exclusive), combined with recent measurements of e+e- annihilation into hadrons at CEA and SLAC give indications that a new level of structure may be appearing at q2 values of about 25 (GeV/c)2. Since anomalies appear in both the spacelike and timelike regions, it seems that far from being completely told, the story of virtual photons is about to enter a rich new phase at distances of order 0.04 fermis or smaller. This would imply masses in the range 5-10 GeV acting as scale breaking structure constants. Whether these masses can be connected with specific constituent models (partons or quarks) is far from clear, but it is reasonable to hope that data describing the behavior of hadron systems excited to these levels by both spacelike and timelike photons will help in our understanding of the new structure. It will be the primary purpose of the experiment presently proposed to make significant advances in obtaining this information for spacelike photons. The means of accomplishing this goal is an upgraded muon-nucleon experimental program in the FNAL muon facility. Other experiments which relate to this program are being discussed and are mentioned at appropriate points below.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE; US Atomic Energy Commission (AEC)
DOE Contract Number:
89243024CSC000002
OSTI ID:
2571259
Report Number(s):
FERMILAB-PROPOSAL--0349; oai:inspirehep.net:97386
Country of Publication:
United States
Language:
English

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS