Dynamics of the pionium with the density matrix formalism

被引：8

作者：

Afanasyev, L ^{[1
]}

Santamarina, C

Tarasov, A

Voskresenskaya, O

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[2] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2004年 / 37卷 / 24期

关键词：

D O I：

10.1088/0953-4075/37/24/003

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The evolution of pionium, the pi(+)pi(-) hydrogen-like atom, passing through matter is described by the density matrix formalism in the first Born approximation. We compare the probability-based calculations with the more precise density matrix formalism which takes into account the interference effects, and consider their influence on the pionium break-up probability. We apply our general result to the specific conditions of the DIRAC experiment at CERN.

引用

页码：4749 / 4761

页数：13

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