Physics with Rare Isotope Beams

Segel, Ralph E.

Northwestern University (Evanston, Ill.)

关键词: Weak Interactions;    Nuclear Astrophysics;    73 Nuclear Physics And Radiation Physics Nuclear Astrophysics;    Proton Structure;   

DOI  :  10.2172/1104697
RP-ID  :  DOE-NORTHWESTERN-41086
RP-ID  :  FG02-98ER41086
RP-ID  :  1104697

美国|英语

来源: UNT Digital Library

【 摘 要 】

Using stable and radioactive beams provided by ATLAS nuclear reactions of special interest in astrophysics have been studied with emphasis on breakout from the hot CNO cycle to the rp-process. The masses of nuclear fragments provided by a strong fission source have been measured in order to help trace the path of the r process. 8Li ions produced by the d(7Li,8Li)n reaction have been trapped and the electrons and alphas emitted in the ensuing beta-decay measured. The neutrino directions were therefore determined, which leads to a measurement of the electron-neutrino correlation. The energies and kinematics are such that a sensitive search for any tensor admixture could be performed and an upper limit of 0.6% was placed on any such admixture. Earlier work on the electromagnetic form factors of the proton was extended. Graduate students were active participants in all of these eperiments, which formed the basis for six PhD theses.