Details

Autor(en) / Beteiligte

• Aaboud, M
• Aad, G
• Abbott, B
• Abdinov, O
• Abeloos, B
• Abidi, SH
• Abouzeid, OS
• Abraham, NL
• Abramowicz, H
• Abreu, H
• Abulaiti, Y
• Acharya, BS
• Adachi, S
• Adamczyk, L
• Adelman, J
• Adersberger, M
• Adye, T
• Affolder, AA
• Afik, Y
• Agheorghiesei, C
• Aguilar-Saavedra, JA
• Ahlen, SP
• Ahmadov, F
• Aielli, G
• Akatsuka, S
• Åkesson, TPA
• Akilli, E
• Akimov, AV
• Alberghi, GL
• Albert, J
• Albicocco, P
• Alconada Verzini, MJ
• Alderweireldt, SC
• Aleksa, M
• Aleksandrov, IN
• Alexa, C
• Alexander, G
• Alexopoulos, T
• Alhroob, M
• Ali, B
• Aliev, M
• Alimonti, G
• Alison, J
• Alkire, SP
• Allaire, C
• Allbrooke, BMM
• Allen, BW
• Allport, PP
• Aloisio, A
• Alonso, A
• Alonso, F
• Alpigiani, C
• Alshehri, AA
• Alstaty, MI
• Alvarez Gonzalez, B
• Álvarez Piqueras, D
• Alviggi, MG
• Amadio, BT
• Amaral Coutinho, Y
• Ambroz, L
• Amelung, C
• Amidei, D
• Amor Dos Santos, SP
• Amoroso, S
• Anastopoulos, C
• Ancu, LS
• Andari, N
• Andeen, T
• Anders, CF
• Anders, JK
• Anderson, KJ
• Andreazza, A
• Andrei, V
• Angelidakis, S
• Angelozzi, I
• Angerami, A
• Anisenkov, AV
• Annovi, A
• Antel, C
• Antonelli, M
• Antonov, A
• Antrim, DJ
• Anulli, F
• Aoki, M
• Aperio Bella, L
• Arabidze, G
• Arai, Y

Titel

Search for the standard model Higgs boson produced in association with top quarks and decaying into a b b ¯ pair in pp collisions at s=13TeV with the ATLAS detector

Ist Teil von

• Physical review. D, 2018-04, Vol.97 (7)

Ort / Verlag

United States: American Physical Society (APS)

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A search for the standard model Higgs boson produced in association with a top-quark pair, ttH, is presented. The analysis uses 36.1 fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. The search targets the H→bb decay mode. The selected events contain either one or two electrons or muons from the top-quark decays, and are then categorized according to the number of jets and how likely these are to contain b-hadrons. Multivariate techniques are used to discriminate between signal and background events, the latter being dominated by tt+jets production. For a Higgs boson mass of 125 GeV, the ratio of the measured ttH signal cross-section to the standard model expectation is found to be μ=0.84-0.61+0.64. A value of μ greater than 2.0 is excluded at 95% confidence level (C.L.) while the expected upper limit is μ<1.2 in the absence of a ttH signal.