The Energy Dependence of $$\pi^+ p$$ Backward Elastic Scattering from 2 to 6 GeV/c

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1974

DOI:https://doi.org/10.2172/1477983· OSTI ID:1477983

Lennox, Arlene Judith ^[1]

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1. Notre Dame U.

The data obtained in this experiment were used to systematically study the energy dependence of the 180° differential cross section for $$\pi^+ p$$ elastic scattering in the center-of-mass energy region from 2159 to 3490 MeV. Measurements were made for incident pion momenta between 2. 0 and 6. 0 in steps of typically 100 MeV /c. A focussing spectrometer and scintillation counter hodoscope s were used to obtain angular distributions for pions scattering in the angular range 141 ° to 173° in the laboratory. In general, these angular distributions exhibited an exponential u dependence, where u is the square of the four momentum transfer between the incident pion and the recoil proton. Hence, values for $$d \sigma / d \Omega$$ at 180° were found by making fits to the form $$d \sigma/d \Omega = d \sigma/d \Omega$$(180) exp[b(u - $$u_{max}$$)], where b is a slope parameter....

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1477983
• Report Number(s): FERMILAB-THESIS-1974-06; 1698853
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS