Scalar scattering amplitude in the Gaussian wave-packet formalism

被引：5

作者：

Ishikawa, Kenzo ^{[1
,2
]}

Nishiwaki, Masaru ^{[3
]}

Oda, Kin-ya ^{[4
]}

机构：

[1] Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan

[2] Keio Univ, Res & Educ Ctr Nat Sci, Yokohama, Kanagawa 2238521, Japan

[3] Shiv Nadar Univ, Dept Phys, Gautam Buddha Nagar 201314, India

[4] Osaka Univ, Dept Phys, Osaka 5600043, Japan

来源：

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS | 2020年 / 2020卷 / 10期

关键词：

D O I：

10.1093/ptep/ptaa127

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We compute an s-channel 2 -> 2 scalar scattering phi phi -> Phi -> phi phi in the Gaussian wavepacket formalism at the tree level. We find that wave-packet effects, including shifts of the pole and the width of the propagator of Phi, persist even when we do not take into account the time boundary effect for 2 -> 2 proposed earlier. An interpretation of the result is that a heavy scalar 1 -> 2 decay Phi -> phi phi, taking into account the production of Phi, does not exhibit the in-state time boundary effect unless we further take into account in-boundary effects for the 2 -> 2 scattering. We also show various plane-wave limits.

引用

页数：28

共 12 条

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