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 |