標題: 雙光子散射與單光子衰變造成高磁化星體能量流失率之比較
The stellar energy loss by the scattering γγ→νν compared to the plasmon decay
作者: 鍾志偉
Chi-Wai Chung
林貴林
Guey-Lin Lin
物理研究所
關鍵字: 粒子物理;微中子;能量流失率;Particle Physics;Neutrino;Emissivity
公開日期: 1999
摘要: 能量流失現象對於超新星的爆炸與中子星的產生是很重要的。在標準模型理論中,星體流失能量的主要機制是 plasmon 衰變 γ→νν。在另一方面,引進一個 scalar-scalar four-fermion interaction 在散射γγ→νν中,則會比它在標準模型理論中有更大的散射面積。 在本文中,我們會討論由於上面的γγ→νν作用,星體的能量流失率,然後將其與標準模型理論中的單光子衰變做比較。
Energy loss is an important phenomenon for the explosion of supernovae and the creation of neutron stars. The plasmon decay γ→νν is known to be the dominant stellar energy-loss mechanism in the standard model. On the other hand, the scattering γγ→νν, induced by the scalar-scalar four-fermion interaction has a much larger cross section than its counterpart in the standard model. In this document, we study the energy emission rate by the γγ→νν process in the model mentioned above, and compare this rate with that of the plasmon decay in the standard model.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT880198001
http://hdl.handle.net/11536/65331
顯示於類別:畢業論文