Theoretical analysis of collisional shift and broadening of antiprotonic helium spectral lines期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Theoretical analysis of collisional shift and broadening of antiprotonic helium spectral lines

Authors:	G.Ya. Korenman

Affiliation:	(1) Institute of Nuclear Physics, Moscow State University, Moscow, 119899, Russia E-mail:

Abstract:	Effect of medium density on shift and broadening of ( $bar p{text{He}}^ +$ ) spectral lines is considered in the framework of binary-collision approximation with an effective ( $bar p{text{He}}^ +$ )–He potential including the long-range attraction and short-range repulsion. Quantum calculations of the scattering phase shifts at reasonable values of the potential parameters allow to explain the main features of the observed density effect on the shape of ( $bar p{text{He}}^ +$ ) spectral lines in low-temperature helium. This revised version was published online in August 2006 with corrections to the Cover Date.

Keywords:	antiprotonic atom metastable states spectral lines collisional shift and broadening
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