×
近期发现有不法分子冒充我刊与作者联系,借此进行欺诈等不法行为,请广大作者加以鉴别,如遇诈骗行为,请第一时间与我刊编辑部联系确认(《中国物理C》(英文)编辑部电话:010-88235947,010-88236950),并作报警处理。
本刊再次郑重声明:
(1)本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137
(2)本刊采编系统作者中心是投稿的唯一路径,该系统为ScholarOne远程稿件采编系统,仅在本刊投稿网网址(https://mc03.manuscriptcentral.com/cpc)设有登录入口。本刊不接受其他方式的投稿,如打印稿投稿、E-mail信箱投稿等,若以此种方式接收投稿均为假冒。
(3)所有投稿均需经过严格的同行评议、编辑加工后方可发表,本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿,并收取发表费用,均为假冒。
                  
《中国物理C》(英文)编辑部
2024年10月30日

A mass reconstruction technique for a heavy resonance decaying to τ+τ-

Get Citation
Li-Gang Xia. A mass reconstruction technique for a heavy resonance decaying to τ+τ-[J]. Chinese Physics C, 2016, 40(11): 113003. doi: 10.1088/1674-1137/40/11/113003
Li-Gang Xia. A mass reconstruction technique for a heavy resonance decaying to τ+τ-[J]. Chinese Physics C, 2016, 40(11): 113003.  doi: 10.1088/1674-1137/40/11/113003 shu
Milestone
Received: 2016-04-18
Revised: 2016-07-04
Fund

    Supported by General Financial Grant from the China Postdoctoral Science Foundation (2015M581062)

Article Metric

Article Views(1709)
PDF Downloads(68)
Cited by(0)
Policy on re-use
To reuse of Open Access content published by CPC, for content published under the terms of the Creative Commons Attribution 3.0 license (“CC CY”), the users don’t need to request permission to copy, distribute and display the final published version of the article and to create derivative works, subject to appropriate attribution.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

A mass reconstruction technique for a heavy resonance decaying to τ+τ-

    Corresponding author: Li-Gang Xia,
  • 1. Department of Physics, Tsinghua University, Beijing 100084, China
Fund Project:  Supported by General Financial Grant from the China Postdoctoral Science Foundation (2015M581062)

Abstract: For a resonance decaying to τ+τ-, it is difficult to reconstruct its mass accurately because of the presence of neutrinos in the decay products of the τ leptons. If the resonance is heavy enough, we show that its mass can be well determined by the momentum component of the τ decay products perpendicular to the velocity of the τ lepton, p, and the mass of the visible/invisible decay products, mvis/inv, for τ decaying to hadrons/leptons. By sampling all kinematically allowed values of p and mvis/inv according to their joint probability distributions determined by the MC simulations, the mass of the mother resonance is assumed to lie at the position with the maximal probability. Since p and mvis/inv are invariant under the boost in the τ lepton direction, the joint probability distributions are independent upon the τ's origin. Thus this technique is able to determine the mass of an unknown resonance with no efficiency loss. It is tested using MC simulations of the physics processes m pp→Z/h(125)/h(750)+X→ ττ+X at 13 TeV. The ratio of the full width at half maximum and the peak value of the reconstructed mass distribution is found to be 20%-40% using the information of missing transverse energy.

    HTML

Reference (26)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return