Z'-explorer 2.0: Reconnoitering the dark matter landscape*,**

被引：3

作者：

Lozano, Victor Martin ^{[1
]}

Seoane, Rosa Maria Sanda ^{[2
]}

Zurita, Jose ^{[3
]}

机构：

[1] DESY, Notkestr 85, D-22607 Hamburg, Germany

[2] UNSAM, Int Ctr Adv Studies ICAS, Campus Miguelete,25 Mayo & Francia, RA-1650 Buenos Aires, Argentina

[3] Univ Valencia, Inst Fis Corpuscular, CSIC, E-46980 Valencia, Spain

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2023年 / 288卷

关键词：

LHC; New physics; Exclusion limits; Dark matter; ROOT-S=13 TEV; LHC; PHYSICS; MODEL; PP; ASSOCIATION; COLLISIONS; SEARCH;

D O I：

10.1016/j.cpc.2023.108729

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We introduce version 2.0 of Z'-explorer, a software tool that provides a simple, fast, and user-friendly test of models with an extra U (1) gauge boson (Z') against experimental LHC results. The main novelty of the second version is the inclusion of missing energy searches, as the first version only included final states into SM particles. Hence Z'-explorer 2.0 is able to test dark matter models where the Z' acts as an s-channel mediator between the Standard Model and the dark sector, a widespread benchmark employed by the ATLAS and CMS experimental collaborations. To this end, we perform here the first public reinterpretation of the most recent ATLAS mono-jet search with 139 fb-1. In addition, the corresponding searches in the visible final states have also been updated. We illustrate the power of our code by re -obtaining public plots and also showing novel results. In particular, we study the cases where the Z' couples strongly to top quarks (top-philic), where dark matter couples with a mixture of vector and axial-vector couplings, and also perform a scan in the parameter space of a string inspired Stuckelberg model. Z'-explorer 2.0 is publicly available on GitHub. Program summary Program Title: Z'-explorer 2.0 CPC Library link to program files: https://doi .org /10 .17632 /k7tdp8kwgf .2 Developer's repository link: https://github .com /ro -sanda /Z--explorer-2 .0 Licensing provisions: GPLv3 Programming language: C++ and bash Nature of problem: New SM neutral gauge bosons, Z', are ubiquitously present in models of New Physics. In order to confront these models versus a large and ever-growing library of LHC searches, Z'-explorer 1.0 had already included all final states including Standard Model particles. Notably, the previous version of this tool lacked the so-called invisible final states manifested as a momentum imbalance in the transverse plane ("missing energy"). These searches help to probe mediators into a dark sector, where a dark matter candidate resides. Solution method: Z'-explorer encodes the production cross sections for Z' bosons at the LHC as a function of their mass, allowing for a fast evaluation of the exclusion limits. This version of Z'-explorer includes a careful validation of the latest search with one energetic jet (mono-jet) performed by the ATLAS collaboration. Hence one can now test if a given point in parameter space is excluded by both visible and invisible searches. The modular structure of the code has been kept, which allows for potential additions (low-energy constraints, flavor, extrapolation to future colliders). (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND

引用

页数：14

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