Full simulation study of the higgs branching ratio into tau lepton pairs at the ILC with √s = 500 GeV

Shin ichi Kawada, Keisuke Fujii, Taikan Suehara, Tohru Takahashi, Tomohiko Tanabe

研究成果: 会議への寄与タイプ論文

抄録

We evaluate the expected measurement accuracy of the branching ratio of the Standard Model Higgs boson decaying into tau lepton pairs h → τ+τ at the ILC with a center-of-mass energy of √s = 500 GeV with a full simulation of the ILD detector. We assume a Higgs mass of Mh = 125 GeV, a branching ratio of BR(h → τ+τ) = 6.32 %, beam polarizations of P (e, e+) = (−0.8, +0.3), and an integrated luminosity of ∫ L dt = 500 fb−1. The Higgs-strahlung process e+e → Zh with Z → qq and the W W-fusion process e+e → ννh are expected to be the most sensitive channels at √s = 500 GeV. Using a multivariate analysis technique, we estimate the expected relative measurement accuracy of the branching ratio ∆(σ · BR)/(σ · BR) to be 4.7% and 7.4% for the qqh and ννh final states, respectively. The results are cross-checked using a cut-based analysis.

元の言語英語
出版物ステータス出版済み - 1 1 2013
イベント2013 International Workshop on Future Linear Colliders, LCWS 2013 - Tokyo, 日本
継続期間: 11 11 201311 15 2013

会議

会議2013 International Workshop on Future Linear Colliders, LCWS 2013
日本
Tokyo
期間11/11/1311/15/13

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leptons
Higgs bosons
center of mass
simulation
fusion
luminosity
detectors
polarization
estimates
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

これを引用

Kawada, S. I., Fujii, K., Suehara, T., Takahashi, T., & Tanabe, T. (2013). Full simulation study of the higgs branching ratio into tau lepton pairs at the ILC with √s = 500 GeV. 論文発表場所 2013 International Workshop on Future Linear Colliders, LCWS 2013, Tokyo, 日本.

Full simulation study of the higgs branching ratio into tau lepton pairs at the ILC with √s = 500 GeV. / Kawada, Shin ichi; Fujii, Keisuke; Suehara, Taikan; Takahashi, Tohru; Tanabe, Tomohiko.

2013. 論文発表場所 2013 International Workshop on Future Linear Colliders, LCWS 2013, Tokyo, 日本.

研究成果: 会議への寄与タイプ論文

Kawada, SI, Fujii, K, Suehara, T, Takahashi, T & Tanabe, T 2013, 'Full simulation study of the higgs branching ratio into tau lepton pairs at the ILC with √s = 500 GeV' 論文発表場所 2013 International Workshop on Future Linear Colliders, LCWS 2013, Tokyo, 日本, 11/11/13 - 11/15/13, .
Kawada SI, Fujii K, Suehara T, Takahashi T, Tanabe T. Full simulation study of the higgs branching ratio into tau lepton pairs at the ILC with √s = 500 GeV. 2013. 論文発表場所 2013 International Workshop on Future Linear Colliders, LCWS 2013, Tokyo, 日本.
Kawada, Shin ichi ; Fujii, Keisuke ; Suehara, Taikan ; Takahashi, Tohru ; Tanabe, Tomohiko. / Full simulation study of the higgs branching ratio into tau lepton pairs at the ILC with √s = 500 GeV. 論文発表場所 2013 International Workshop on Future Linear Colliders, LCWS 2013, Tokyo, 日本.
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AU - Kawada, Shin ichi

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N2 - We evaluate the expected measurement accuracy of the branching ratio of the Standard Model Higgs boson decaying into tau lepton pairs h → τ+τ− at the ILC with a center-of-mass energy of √s = 500 GeV with a full simulation of the ILD detector. We assume a Higgs mass of Mh = 125 GeV, a branching ratio of BR(h → τ+τ−) = 6.32 %, beam polarizations of P (e−, e+) = (−0.8, +0.3), and an integrated luminosity of ∫ L dt = 500 fb−1. The Higgs-strahlung process e+e− → Zh with Z → qq and the W W-fusion process e+e− → ννh are expected to be the most sensitive channels at √s = 500 GeV. Using a multivariate analysis technique, we estimate the expected relative measurement accuracy of the branching ratio ∆(σ · BR)/(σ · BR) to be 4.7% and 7.4% for the qqh and ννh final states, respectively. The results are cross-checked using a cut-based analysis.

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