Yayınlanmış 1 Ocak 2018
| Sürüm v1
Dergi makalesi
Açık
Search for t(t)over-barH production in the all-jet final state in proton-proton collisions root s=13 TeV
Yazarlar/Oluşturanlar
- 1. Yerevan Phys Inst, Yerevan, Armenia
- 2. Inst Hochenergiephys, Vienna, Austria
Açıklama
A search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet final state. Events containing seven or more jets are selected from a sample of proton-proton collisions at root s = 13 TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb(-1). To separate the t (t) over barH signal from the irreducible t (t) over bar + b (b) over bar background, the analysis assigns leading order matrix element signal and background probability densities to each event. A likelihood-ratio statistic based on these probability densities is used to extract the signal. The results are provided in terms of an observed t (t) over barH signal strength relative to the standard model production cross section mu = sigma/sigma(SM), assuming a Higgs boson mass of 125 GeV. The best fit value is (mu) over cap = 0.9 +/- 0.7(stat) +/- 1.3(syst) = 0.9 +/- 1.5 (tot), and the observed and expected upper limits are, respectively, mu < 3.8 and < 3.1 at 95% confidence levels.
Dosyalar
bib-a7b492c7-0728-4436-b5d0-22b8b5d048c6.txt
Dosyalar
(422 Bytes)
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md5:d55d15689ad86a1032450ff9e88ee859
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