Atmospheric neutrino oscillations with MACRO

被引：0

作者：

Sioli, M

机构：

[1] Univ Bologna, Dept Phys, I-40127 Bologna, Italy

[2] Ist Nazl Fis Nucl, I-40127 Bologna, Italy

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2003年 / 122卷

关键词：

D O I：

10.1016/S0920-5632(03)02032-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present the latest results on the study of atmospheric neutrino oscillations with the MACRO detector at Gran Sasso. Two sub-samples of events have been analysed, both in terms of absolute flux and zenith angle distribution: high energy events (with <E-nu> similar or equal to 50 GeV) and low energy events (with <E-nu> similar or equal to 4 GeV). The high energy sample has been used also to check the numu <----> nu(sterile) oscillation hypothesis and to estimate neutrino energies using Multiple Coulomb Scattering (MCS) informations. All these analyses are mutually consistent and strongly favour the nu(mu) <----> nu(tau) oscillation hypothesis with maximal mixing and Deltam(2) = 2.5 . 10(-3) eV(2).

引用

页码：301 / 304

页数：4

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