Reconstruction of the Higgs mass in H → ττ Events by Dynamical Likelihood techniques

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Bianchini, Lorenzo^1 ; Conway, John^2 ; Friis, Evan Klose^3 ; Veelken, Christian^4

Institute for Particle Physics, ETH Zurich, Zurich

8093, Switzerland^1

Department of Physics, University of California, Davis

CA

95616-8677, United States^2

Department of Physics, University of Wisconsin, Madison

WI

53706-1390, United States^3

Laboratoire Leprince-Ringuet, École Polytechnique, Palaiseau

91128, France^4

关键词: Decay channels;    Decay products;    Dynamical likelihood;    Likelihood functions;    The standard model;    Transverse energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/2/022035/pdf
DOI  :  10.1088/1742-6596/513/2/022035

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

An algorithm for reconstruction of the Higgs mass in H → ττ decays is presented. The algorithm computes for each event a likelihood function P(Mττ) which quantifies the level of compatibility of a Higgs mass hypothesis Mττwith measured momenta of the visible tau decay products plus the missing transverse energy reconstructed in the event. The algorithm is used in the CMS H → ττ analysis, where it is found to improve the sensitivity to discover the Standard Model Higgs boson in this decay channel by about 30%.