Investigating Tau Lepton Pair Production with the Atlas Experiment: A Probe for New Physics in the Standard Model Flavour Sector
暫譯: 利用 Atlas 實驗探究 Tau 輕子對產生：探索標準模型味區中的新物理

Name: Investigating Tau Lepton Pair Production with the Atlas Experiment: A Probe for New Physics in the Standard Model Flavour Sector
Price: 6099 TWD
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Author: Padovano, Giovanni
ISBN: 303212574X

Padovano, Giovanni

出版商: Springer
出版日期: 2026-10-22
售價: $6,420
貴賓價: 9.5 折 $6,099
語言: 英文
頁數: 271
裝訂: Hardcover - also called cloth, retail trade, or trade
ISBN: 303212574X
ISBN-13: 9783032125743
相關分類: 物理學 Physics

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商品描述

This book presents a search for leptoquark particles in final states with two tau leptons and a cross-section measurement of the tau lepton pair production, performed with the ATLAS experiment at the Large Hadron Collider. Measurements of B-hadron decays to D(*)τν have shown increased rates relative to the corresponding decays to lighter leptons, suggesting the existence of leptoquark particles more strongly coupled to third generation fermions. This makes the production of tau lepton pairs a privileged final state for their detection, as well as a relevant process to probe electroweak properties. The results presented exploit the Run 2 dataset (2015-2018) of pp collisions recorded by the ATLAS experiment at a centre of mass energy of 13 TeV. The search for leptoquark particles sets the most stringent constraints on such models in the non-resonant production mode, while the cross-section measurement of tau lepton pair production is the first one performed in high energy proton-proton collisions. One of the most compelling aspects of both analyses is the estimate of a sizable background of events with hadronic jets mis-reconstructed as fake tau leptons. This is addressed through a novel technique -- the Universal Fake Factor method -- extensively detailed in the text. This book also describes the upgrade of the Muon Trigger system of the ATLAS experiment in preparation for the High-Luminosity LHC program, with a focus on the author's involvement in the design of the Sector Logic sub-system.

商品描述(中文翻譯)

本書介紹使用 Large Hadron Collider 中的 ATLAS 實驗，尋找最終態包含兩個 tau 輕子之 leptoquark 粒子，並測量 tau 輕子對的產生截面。B 強子衰變為 D(*)τν 的測量結果顯示，相較於衰變為較輕質量輕子的相應過程，其發生率有所增加，這暗示可能存在與第三代費米子具有較強耦合的 leptoquark 粒子。因此，tau 輕子對的產生不僅是偵測這類粒子的理想最終態，也是探測電弱性質的重要過程。

本書所介紹的結果採用 ATLAS 實驗在質心能量 13 TeV 下記錄的 Run 2 質子–質子（pp）碰撞資料集（2015–2018）。leptoquark 粒子的搜尋，針對非共振產生模式，對此類模型設下目前最嚴格的限制；而 tau 輕子對產生截面的測量，則是首次在高能量質子–質子碰撞中完成的此類測量。

兩項分析中最引人注目的部分之一，是對這類事件背景的估計：其中強子噴流可能被錯誤重建為假的 tau 輕子。本書透過一項創新的技術——Universal Fake Factor method（通用假因子方法）——處理此問題，並對其進行詳細說明。

此外，本書也介紹 ATLAS 實驗 Muon Trigger 系統的升級工作，該升級是為 High-Luminosity LHC 計畫所做的準備，並著重說明作者在 Sector Logic 子系統設計工作中的參與。

作者簡介

Giovanni Padovano is an experimental particle physicist working in the ATLAS Collaboration at the CERN Large Hadron Collider. His research focuses on physics analyses with tau lepton final states. He received his Ph.D. in Particle Physics from Sapienza University of Rome, where he also obtained his M.Sc. and B.Sc. in Physics. During his Ph.D., he studied the production of tau lepton pairs in proton-proton collisions (pp→ ��), performing a cross-section measurement of this process with several implications on new physics constraints. He subsequently searched for the production of Higgs boson pairs, in the final state involving two bottom quarks and two tau leptons (HH → bb��). He spent several periods of research at CERN and moved to the CNRS Laboratoire d'Annecy de Physique des Particules to continue his research within ATLAS.

作者簡介(中文翻譯)

Giovanni Padovano 是任職於 CERN 大型強子對撞機（Large Hadron Collider）ATLAS Collaboration 的實驗粒子物理學家。他的研究重點是以 tau lepton（τ 輕子）末態進行物理分析。他取得 Sapienza University of Rome 的粒子物理學博士學位，並於該校取得物理學碩士與學士學位。在博士研究期間，他研究質子—質子碰撞（pp → ττ）中 tau lepton 對的產生，對此過程進行截面測量，並探討其對新物理約束的多項影響。之後，他搜尋 Higgs boson 對的產生，研究涉及兩個 bottom quark 與兩個 tau lepton 的末態（HH → bbττ）。他曾數度在 CERN 從事研究，之後轉至 CNRS Laboratoire d'Annecy de Physique des Particules，繼續在 ATLAS Collaboration 中進行研究。