High energy photon-neutrino interactions

被引：16

作者：

Abbasabadi, A ^{[1
]}

Devoto, A

Dicus, DA

Repko, WW

机构：

[1] Ferris State Univ, Dept Phys Sci, Big Rapids, MI 49307 USA

[2] Univ Cagliari, Dipartimento Fis, Cagliari, Italy

[3] Ist Nazl Fis Nucl, Sez Cagliari, Cagliari, Italy

[4] Univ Texas, Ctr Particle Phys, Austin, TX 78712 USA

[5] Univ Texas, Dept Phys, Austin, TX 78712 USA

[6] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW D | 1999年 / 59卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.59.013012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A general decomposition of the amplitudes for the 2 --> 2 processes gamma upsilon --> gamma upsilon and gamma gamma --> upsilon (upsilon) over bar is obtained using gauge invariance and Bose symmetry. The restrictions implied by this decomposition are investigated for the reaction gamma gamma --> upsilon (upsilon) over bar by computing the one-loop helicity amplitudes in the standard model. In the center of mass, when root s = 2 omega, the cross section grows roughly as omega(6) up to the threshold for W-boson production, root s = 2m(W). Astrophysical implications of very high energy photon-neutrino interactions are discussed.

引用

页数：6

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