Neutron-mirror-neutron oscillations: How fast might they be?

被引：111

作者：

Berezhiani, Z ^{[1
]}

Bento, L

机构：

[1] Univ Aquila, Dipartimento Fis, I-67010 Coppito, Italy

[2] INFN, Lab Nazl Gran Sasso, I-67010 Assergi, AQ, Italy

[3] Univ Lisbon, Ctr Fis Nucl, Fac Ciencias, P-1649003 Lisbon, Portugal

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.96.081801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the phenomenological implications of the neutron (n) oscillation into the mirror neutron (n(')), a hypothetical particle exactly degenerate in mass with the neutron but sterile to normal matter. We show that the present experimental data allow a maximal n-n(') oscillation in vacuum with a characteristic time tau much shorter than the neutron lifetime, in fact as small as 1 sec. This phenomenon may manifest in neutron disappearance and regeneration experiments perfectly accessible to present experimental capabilities and may also have interesting astrophysical consequences, in particular, for the propagation of ultra high energy cosmic rays.

引用

页数：4

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