Are antiprotons forever?

被引：57

作者：

Holzscheiter, MH

Feng, X

Goldman, T

King, NSP

Lewis, RA

Nieto, MM

Smith, GA

机构：

[1] AARHUS UNIV,INST PHYS & ASTRON,DK-8000 AARHUS C,DENMARK

[2] LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545

[3] PENN STATE UNIV,UNIVERSITY PK,PA 16802

[4] UNIV ULM,ABT QUANTENPHYS,D-89069 ULM,GERMANY

来源：

PHYSICS LETTERS A | 1996年 / 214卷 / 5-6期

关键词：

D O I：

10.1016/0375-9601(96)00189-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Up to more than one million antiprotons from a single LEAR spill have been captured in a large Penning trap. Surprisingly, when the antiprotons are cooled to energies significantly below 1 eV, the annihilation rate falls below the background. Thus, very long storage times for antiprotons have been demonstrated in the trap, even at the compromised vacuum conditions imposed by the experimental setup. The significance for future ultra-low-energy experiments is discussed.

引用

页码：279 / 284

页数：6

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