Search Results (3 total)

We describe the status of our effort to realize a first neutrino factory and the progress made in understanding the problems associated with the collection and cooling of muons towards that end. We summarize the physics that can be done with neutrino factories as well as with intense cold beams of muons. The physics potential of muon colliders is reviewed, both as Higgs factories and compact high-energy lepton colliders. The status and time scale of our research and development effort is reviewed as well as the latest designs in cooling channels including the promise of ring coolers in achieving longitudinal and transverse cooling simultaneously. We detail the efforts being made to mount an international cooling experiment to demonstrate the ionization cooling of muons.

The elastic scattering of ⁷Li+¹⁶O has been measured at E_Li=50 MeV and fitted with an optical model potential. The ¹⁶O(⁷Li,⁷Be)¹⁶N reaction has been investigated at E_Li=50 MeV. States and groups of states were observed up to 6.3 MeV excitation in the ¹⁶N+⁷Be system. Angular distributions for ¹⁶N in 2^- 0.0 MeV, 3^- 0.297 MeV, and 4^- 6.17 MeV states with ⁷Be in its ground state (⁷Be₀), and for ¹⁶N in the 3^- 0.297 MeV state with ⁷Be in its first excited state (⁷Be₁), have been compared with distorted-wave Born approximation calculations. The distorted-wave Born approximation form factors were calculated microscopically using central and tensor forces and realistic transition densities. The calculations fail to reproduce the cross sections.

Polarized ³He particles have been used to initiate (³He→, p) reactions on light nuclei. The results obtained have been compared with the available data for (³He, p→) and the inverse (p→, ³He) reactions. It is suggested that the reactions proceed predominantly by a direct transfer mechanism and follow a simple reaction model which relates the polarization of the (³He, p→) to the analyzing power of the (³He→, p) reaction according to the S transfer. If time-reversal invariance is applied, the present (³He→, p) results for ⁷Li and ⁹Be are in agreement with the (p→, ³He) measurements on ⁹Be and ¹¹B targets.

NUCLEAR REACTIONS ⁷Li(³He→, p)⁹Be, ⁹Be(³He→, p)¹¹B; E=14 MeV; ¹²C(³He→, p)¹⁴N, E=33 MeV; measured A_y(θ).