Measurements of two-body branching ratios for pp annihilations at rest in liquid and gaseous (12ฯ STP ) hydrogen are reported. Channels studied are pp โ ฯ 0 ฯ 0 , ฯ 0 ฮท, K 0 S K 0 L , K + K -. The branching ratio for the ฯ 0 ฯ 0 channel in liquid H 2 is measured to be (6.14 ยฑ 0.40) ร 10 -4 . The res
Two-body branching ratios; an experimental review
โ Scribed by C.J. Batty
- Book ID
- 104337306
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 518 KB
- Volume
- 655
- Category
- Article
- ISSN
- 0375-9474
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โฆ Synopsis
Recent measurements of two-body Branching Ratios for Op and l)d annihilations at rest are reviewed, with an emphasis on the consistency of the data and possible discrepancies. Their use for determining the probability for P-state annihilation as a function of target density !s discussed and the results of a recent analysis of Op data are presented. These results also show clear evidence for the presence of dynamical selection rules.
๐ SIMILAR VOLUMES
positions where the wall pressure has maximum and minimum values respectively penetration length of jet distance from the wall forward flow fraction yaw and pitch angles of flow direction (Fig. 4) velocity ratio, 2 = Ufl Uo density of the fluid nondimensional stream function 1