Signatures of supernova neutrino oscillations into extra dimensions

被引：10

作者：

Cacciapaglia, G

Cirelli, M

Romanino, A

机构：

[1] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[2] Ist Nazl Fis Nucl, Sez Pisa, I-56126 Pisa, Italy

[3] CERN, Div Theory, CH-1211 Geneva, Switzerland

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.68.033013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the mixing of muon and tau neutrinos with sterile fermion fields propagating in extra dimensions in the context of core collapse supernova physics, extending the analysis of the electron neutrino case done in a previous work. We show that the potentially dramatic modifications to the supernova evolution are prevented by a mechanism of feedback, so that no severe bounds on the parameters of the extra dimensions need to be imposed. Nevertheless, the supernova core evolution is significantly modified. We discuss the consequences on the delayed explosion mechanism and the compatibility with the SN 1987A signal. Then, for the cases of both nu(mu,tau) and nu(e) mixing with bulk fermions, we analyze the distinctive features of the signal on Earth.

引用

页数：8

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