corner
corner
APS » Journals » Phys. Rev. C » Volume 60 » Issue 5
< Previous Article | Next Article >

Phys. Rev. C 60, 054618 (1999) [6 pages]

Spin effect of antiproton-nucleus inelastic scattering

Abstract
References
No Citing Articles
Download: PDF (91 kB) Buy this article Export: BibTeX or EndNote (RIS)

Zhang Yu-shun
Center of Theoretical Physics, CCAST (World Laboratory), Beijing 100080, People’s Republic of China
Institute of High Energy Physics, Academic Sinica, Beijing 100039, People’s Republic of China

B. A. Robson
Department of Theoretical Physics, Research School of Physical Sciences, The Australian National University, Canberra ACT 2601, Australia

Zhou Yue
Department of Computer Science and Technology, Tsinghua University, People’s Republic of China

Li Yang-guo
Department of Physics, Shanton University, Guangdong, People’s Republic of China

Received 15 September 1998; published 19 October 1999

If the antiproton optical potential includes the spin orbit interaction term, the A(p̅ ,p′)A* inelastic scattering not only can excite the normal parity states, but also can excite the abnormal parity states. It also induces a polarization Pf(θ) at the inelastic scattering. In the framework of DWIA, we derive and calculate the inelastic scattering cross section and Pf(θ) for the 12C(p̅ ,p′)12C* with 2+, 3-, and 1+ states at antiproton energies of 46.8 and 179.7 MeV. Our model fit well the available experimental data. The 46.8 MeV measurement of the inelastic differential cross section to the 1+ abnormal parity state can be explained by a spin orbit term. Such a term generates a sizable inelastic scattering polarization.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.60.054618
DOI:
10.1103/PhysRevC.60.054618
PACS:
24.10.Ht, 13.75.Cs, 21.30.Fe
 
< Previous Article | Next Article >