Applied nonrelativistic conformal field theory: Scattering-length and effective-range corrections to rate of production of three neutrons at low relative momenta

被引：3

作者：

Chowdhury, Subham Dutta ^{[1
]}

Mishra, Ruchira ^{[1
]}

Son, Dam Thanh ^{[1
]}

机构：

[1] Univ Chicago, Kadanoff Ctr Theoret Phys, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW D | 2024年 / 109卷 / 01期

关键词：

INVARIANCE;

D O I：

10.1103/PhysRevD.109.016001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Due to an accidentally large s-wave scattering length, in a relatively wide range of energy, neutrons are approximately described by the nonrelativistic conformal field theory of unitarity fermions, perturbed by one relevant and an infinite number of irrelevant operators. We develop a formalism which provides a nonperturbative definition of local operators in that nonrelativistic conformal field theory. We compute the scattering-length and effective-range corrections to the two-point functions of primary charge-three operators using the technique of conformal perturbation theory. These calculations allow us to find the first corrections to the scale-invariant behavior of the rate of nuclear reactions with three neutrons in the final state in the regime when the neutrons have small relative momenta.

引用

页数：26

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