Measurement of the dp→He3η reaction near threshold
2007
Abstract Total and differential cross sections for the d p → He 3 η reaction have been measured near threshold for He 3 center-of-mass momenta in the range from 17.1 MeV/ c to 87.5 MeV/ c . The data were taken during a slow ramping of the COSY internal deuteron beam scattered on a proton target detecting the He 3 ejectiles with the COSY-11 facility. The forward–backward asymmetries of the differential cross sections deviate clearly from zero for center-of-mass momenta above 50 MeV/ c indicating the presence of higher partial waves in the final state. Below 50 MeV/ c center-of-mass momenta a fit of the final state enhancement factor to the data of the total cross sections results in the He 3 – η scattering length of | a | = 4.3 ± 0.5 fm .
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
33
References
99
Citations
NaN
KQI