Pion Pion Decay Distributions for $$\pi^- p \to \pi^+ \pi^- \eta$$ at 100-GeV/c and 175-GeV/c

Thesis/Dissertation · Sat May 01 04:00:00 EDT 1982

DOI:https://doi.org/10.2172/1433900· OSTI ID:1433900

Stampke, Stuart Reh ^[1]

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1. Caltech

We report measurements of the reaction $$\pi^- p \to \pi^+ \pi^- \eta$$ at 100 and 175 GeV /c using a large wire chamber spectrometer at Fermilab. Production of $p^0$ , $f^0$ • and $g^0$ resonances was observed. Cross sections for $$\pi^- p \to \pi^+ \pi^- \eta$$ in the $p^0$ mass region are given. Decay angle distributions for $$\pi \pi$$ masses from .55 to 3.5 GeV /$c^2$ are presented. Moment analyses of the decay distributions are made as a function of 1i1i mass from .55 to 2.4 GeV /$c^2$. Contours of $$\pi\pi$$ decay distribution dips are given in $$s_{\pi\pi}$$ and $$t_{\pi\pi}$$. Comparisons with several lower energy experiments are made. Detailed discussions of the apparatus, trigger, and analysis procedures are given.

• 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: 1433900
• Report Number(s): FERMILAB-THESIS-1982-11; CALT-68-936; 178626
• Country of Publication: United States
• Language: English

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