Geometry optimization for long-lived particle detectors

被引：0

作者：

Gorordo, Thomas ^{[1
]}

Knapen, Simon ^{[1
,2
]}

Nachman, Benjamin ^{[1
]}

Robinson, Dean J. ^{[1
,2
]}

Suresh, Adi ^{[1
]}

机构：

[1] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Dept Phys, Berkeley, CA 94720 USA

来源：

JOURNAL OF INSTRUMENTATION | 2023年 / 18卷 / 09期

关键词：

Large detector systems for particle and astroparticle physics; Particle tracking detectors;

D O I：

10.1088/1748-0221/18/09/P09012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The proposed designs of many auxiliary long-lived particle (LLP) detectors at the LHC call for the instrumentation of a large surface area inside the detector volume, in order to reliably reconstruct tracks and LLP decay vertices. Taking the CODEX-b detector as an example, we provide a proof-of-concept optimization analysis that demonstrates the required instrumented surface area can be substantially reduced for many LLP models, while only marginally affecting the LLP signal efficiency. This optimization permits a significant reduction in cost and installation time, and may also inform the installation order for modular detector elements. We derive a branch-and-bound based optimization algorithm that permits highly computationally efficient determination of optimal detector configurations, subject to any specified LLP vertex and track reconstruction requirements. We outline the features of a newly-developed generalized simulation framework, for the computation of LLP signal efficiencies across a range of LLP models and detector geometries.

引用

页数：34