{"title":"高能对撞机上以单光子 ISR 为特征的矢量 DM 状态的共振产生","authors":"G. Gil da Silveira, M. S. Mateus Jr.","doi":"10.1007/s13538-024-01545-4","DOIUrl":null,"url":null,"abstract":"<div><p>Dark matter research, aimed at unraveling astrophysical enigmas, faces the challenge of lacking concrete evidence connecting dark matter with the observable universe in both experimental and theoretical particle physics. Our study investigates a simplified extension to the Standard Model (SM) where SM fermion interacts with a hypothetical vector dark matter (DM) particle in high-energy collisions, mediated by a proposed massive spin-1 particle, <span>\\(Z^{\\prime }\\)</span>. We specifically explore vector DM pair production through fermion annihilation in this mediator, focusing on a near-resonance condition (<span>\\(m_{\\chi }\\sim M_{Z^{\\prime }}/2\\)</span>). This includes examining monophoton production, a SM signal, as a result of initial-state radiation. We also calibrate the coupling constants between DM and SM particles relative to Planck satellite thermal relic density data, particularly near a resonance where traditional models anticipate more relic density suppression. Our findings, consistent with expected relic density at resonance regimes, suggest mass ranges and coupling constants for these DM particles that align with collider and astrophysical limits, to be validated in CLIC and LHC settings.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Resonant Production of Vector DM States Characterized by Monophoton ISR at High-Energy Colliders\",\"authors\":\"G. Gil da Silveira, M. S. Mateus Jr.\",\"doi\":\"10.1007/s13538-024-01545-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Dark matter research, aimed at unraveling astrophysical enigmas, faces the challenge of lacking concrete evidence connecting dark matter with the observable universe in both experimental and theoretical particle physics. Our study investigates a simplified extension to the Standard Model (SM) where SM fermion interacts with a hypothetical vector dark matter (DM) particle in high-energy collisions, mediated by a proposed massive spin-1 particle, <span>\\\\(Z^{\\\\prime }\\\\)</span>. We specifically explore vector DM pair production through fermion annihilation in this mediator, focusing on a near-resonance condition (<span>\\\\(m_{\\\\chi }\\\\sim M_{Z^{\\\\prime }}/2\\\\)</span>). This includes examining monophoton production, a SM signal, as a result of initial-state radiation. We also calibrate the coupling constants between DM and SM particles relative to Planck satellite thermal relic density data, particularly near a resonance where traditional models anticipate more relic density suppression. Our findings, consistent with expected relic density at resonance regimes, suggest mass ranges and coupling constants for these DM particles that align with collider and astrophysical limits, to be validated in CLIC and LHC settings.</p></div>\",\"PeriodicalId\":499,\"journal\":{\"name\":\"Brazilian Journal of Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brazilian Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13538-024-01545-4\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s13538-024-01545-4","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
暗物质研究旨在揭开天体物理之谜,但它面临的挑战是,实验和理论粒子物理学都缺乏将暗物质与可观测宇宙联系起来的具体证据。我们的研究调查了标准模型(SM)的简化扩展,即SM费米子在高能对撞中与假想的矢量暗物质(DM)粒子相互作用,而这一相互作用是由一个拟议的大质量自旋-1粒子(Z^{\prime }\ )介导的。我们特别探索了在这种介质中通过费米子湮灭产生的矢量暗物质对,重点是近共振条件((m_{\chi }\sim M_{Z^{\prime }}/2\ ))。这包括研究作为初始态辐射结果的 SM 信号--单光子的产生。我们还根据普朗克卫星热遗迹密度数据校准了DM和SM粒子之间的耦合常数,特别是在共振附近,因为传统模型预计那里会有更多的遗迹密度抑制。我们的发现与共振区的预期遗迹密度一致,表明这些DM粒子的质量范围和耦合常数符合对撞机和天体物理学的限制,有待在CLIC和大型强子对撞机环境中验证。
Resonant Production of Vector DM States Characterized by Monophoton ISR at High-Energy Colliders
Dark matter research, aimed at unraveling astrophysical enigmas, faces the challenge of lacking concrete evidence connecting dark matter with the observable universe in both experimental and theoretical particle physics. Our study investigates a simplified extension to the Standard Model (SM) where SM fermion interacts with a hypothetical vector dark matter (DM) particle in high-energy collisions, mediated by a proposed massive spin-1 particle, \(Z^{\prime }\). We specifically explore vector DM pair production through fermion annihilation in this mediator, focusing on a near-resonance condition (\(m_{\chi }\sim M_{Z^{\prime }}/2\)). This includes examining monophoton production, a SM signal, as a result of initial-state radiation. We also calibrate the coupling constants between DM and SM particles relative to Planck satellite thermal relic density data, particularly near a resonance where traditional models anticipate more relic density suppression. Our findings, consistent with expected relic density at resonance regimes, suggest mass ranges and coupling constants for these DM particles that align with collider and astrophysical limits, to be validated in CLIC and LHC settings.
期刊介绍:
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.