Nucleon spin fluctuations and the supernova emission of neutrinos and axions

被引：145

作者：

Janka, HT

Keil, W

Raffelt, G

Seckel, D

机构：

[1] MAX PLANCK INST ASTROPHYS, D-85740 GARCHING, GERMANY

[2] MAX PLANCK INST PHYS & ASTROPHYS, D-80805 MUNICH, GERMANY

[3] UNIV DELAWARE, BARTOL RES INST, NEWARK, DE 19716 USA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.76.2621

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the hot and dense medium of a supernova (SN) core, the nucleon spins fluctuate so fast that the axial-vector neutrino opacity and the axion emissivity are expected to be significantly modified. Axions with m(a) less than or similar to 10(-2) eV are not excluded by SN 1987A. A substantial transfer of energy in neutrino-nucleon (nu N) collisions is enabled which may alter the spectra of SN neutrinos relative to calculations where energy-conserving nu N collisions had been assumed near the neutrinosphere.

引用

页码：2621 / 2624

页数：4

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