Search for tt¯Htt¯H Production in the All-jet Final State in Proton-proton Collisions at s?=13s=13 TeV

Bilki, Burak; ., ve diger

Search for tt¯Htt¯H Production in the All-jet Final State in Proton-proton Collisions at s?=13s=13 TeV

dc.authorid	249433	en_US
dc.contributor.author	Bilki, Burak
dc.contributor.author	., ve diger
dc.date.accessioned	2019-03-28T13:22:06Z
dc.date.available	2019-03-28T13:22:06Z
dc.date.issued	2018
dc.department	İstanbul Beykent Üniversitesi	en_US
dc.description.abstract	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 s?=13s=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 tt¯Htt¯H signal from the irreducible tt¯+bb¯¯¯tt¯+bb¯ 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 ttH signal strength relative to the standard model production cross section ? = ?/?SM, assuming a Higgs boson mass of 125 GeV. The best fit value is ?ˆ=0.9±0.7(stat)±1.3(syst)=0.9±1.5(tot)?^=0.9±0.7(stat)±1.3(syst)=0.9±1.5(tot), and the observed and expected upper limits are, respectively, ? < 3.8 and < 3.1 at 95% confidence levels.	en_US
dc.identifier.doi	10.1007/JHEP06(2018)101
dc.identifier.issn	1029-8479
dc.identifier.scopus	2-s2.0-85049914149	en_US
dc.identifier.scopusquality	Q2	en_US
dc.identifier.uri	https://doi.org/10.1007/JHEP06(2018)101
dc.identifier.wos	WOS:000436004000010	en_US
dc.identifier.wosquality	Q1	en_US
dc.indekslendigikaynak	Web of Science	en_US
dc.indekslendigikaynak	Scopus	en_US
dc.language.iso	en	en_US
dc.publisher	Springer Link	tr_TR
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı	en_US
dc.subject	Hadron-Hadron scattering	tr_TR
dc.subject	Higgs physics	tr_TR
dc.subject	Top physics	tr_TR
dc.title	Search for tt¯Htt¯H Production in the All-jet Final State in Proton-proton Collisions at s?=13s=13 TeV	en_US
dc.type	Article	en_US