Bounds on the coupling of the Majoron to light neutrinos from supernova cooling

被引：127

作者：

Farzan, Y

机构：

[1] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA

[2] Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.67.073015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore the role of Majoron (J) emission in the supernova cooling process, as a source of the upper bound on neutrino-Majoron coupling. We show that the strongest upper bound on the coupling to nu(e) comes from the nu(e)nu(e)-->J process in the core of a supernova. We also find bounds on diagonal couplings of the Majoron to nu(mu(tau))nu(mu(tau)) and on off-diagonal nu(e)nu(mu(tau)) couplings in various regions of the parameter space. We discuss the evaluation of the cross section for four-particle interactions (nunu-->JJ and nuJ-->nuJ). We show that these are typically dominated by three-particle subprocesses and do not give new independent constraints.

引用

页数：15

共 70 条

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