Branching Ratio of π⁻ + He⁴ → t + n

Author

Chun-Ming Leung

Date of Defense

Spring 1969

Department

Physics

First Advisor

Malcolm Derrick, Argonne National Laboratory

Abstract

The branching ratio of π^- absorption in He⁴ giving the reaction π^- + He⁴ → t + n was measured for both in flight and at rest interactions. It was found that:

R (at rest) = 0.27 ± 0.02

R (in flight) = 0.27 ± 0.07

suggesting a similar mechanism for π^- absorption at rest and in flight (π^- momentum below 200 MeV/c). The in flight ratio differs considerably from that of π⁺ absorption in flight in He⁴, giving the charge symmetric reaction π⁺ + He⁴ → He³ + p.

Recommended Citation

Leung, Chun-Ming, "Branching Ratio of π⁻ + He⁴ → t + n" (1969). Honors Theses. 283.
https://scholarworks.wmich.edu/honors_theses/283

Access Setting

Honors Thesis-Campus Only