Physics beyond the Standard Model with NA62

IF 1.3 4区工程技术 Q3 INSTRUMENTS & INSTRUMENTATION

Journal of Instrumentation Pub Date : 2023-12-01 DOI:10.1088/1748-0221/18/12/C12018

G. Tinti

引用次数: 0

Abstract

The NA62 experiment at CERN took data in 2016–2018 with the main goal of measuring the K + → νν̅ decay. The NA62 dataset is also exploited to search for light feebly interacting particles produced in kaon decays. Searches for K + → e + N and K + → μ + N decays, where N is a massive invisible particle, are performed. The N particle is assumed to be a heavy neutral lepton, and the results are expressed as upper limits of 𝒪(10-8) the neutrino mixing parameter |U14|2, where l = e,μ. Dedicated trigger lines were employed to collect di-lepton final states, which allowed stringent upper limits to be established for the rates lepton flavor and lepton number violating kaon decays. Upper limits on the rates of several K + decays violating lepton flavour and lepton number conservation, obtained by analysing this dataset, are presented here.

查看原文本刊更多论文

超越标准模型的物理学与 NA62

欧洲核子研究中心的NA62实验在2016-2018年期间采集了数据，主要目标是测量K+→νν̅衰变。此外，还利用 NA62 数据集搜索在 kaon 衰变中产生的轻微弱相互作用粒子。对 K + → e + N 和 K + → μ + N 衰变进行了搜索，其中 N 是一个大质量隐形粒子。N粒子被假定为重中性轻子，结果以中微子混合参数|U14|2的𝒪(10-8)上限表示，其中l = e,μ。专用的触发线被用来收集二轻子最终态，从而为轻子味道和轻子数目违反高昂子衰变的速率确定了严格的上限。本文介绍了通过分析该数据集获得的几种违反轻子味道和轻子数目守恒的 K + 衰变的速率上限。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Instrumentation 工程技术-仪器仪表

CiteScore

2.40

自引率

15.40%

发文量

827

审稿时长

7.5 months

期刊介绍： Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include. -Accelerators: concepts, modelling, simulations and sources- Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons- Detector physics: concepts, processes, methods, modelling and simulations- Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics- Instrumentation and methods for plasma research- Methods and apparatus for astronomy and astrophysics- Detectors, methods and apparatus for biomedical applications, life sciences and material research- Instrumentation and techniques for medical imaging, diagnostics and therapy- Instrumentation and techniques for dosimetry, monitoring and radiation damage- Detectors, instrumentation and methods for non-destructive tests (NDT)- Detector readout concepts, electronics and data acquisition methods- Algorithms, software and data reduction methods- Materials and associated technologies, etc.- Engineering and technical issues. JINST also includes a section dedicated to technical reports and instrumentation theses.