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

[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%.

[发布机构] 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

[效力级别] 计算机科学 [学科分类] 计算机科学（综合）

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