Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the ℓℓbb final state in pp collisions at s=13 TeV with the ATLAS detector
- Author(s): 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
- Ahmadov, F
- Aielli, G
- Akatsuka, S
- Åkesson, TPA
- Akilli, E
- Akimov, AV
- Alberghi, GL
- Albert, J
- Albicocco, P
- Alconada Verzini, MJ
- Alderweireldt, S
- 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
- Amrouche, CS
- 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
- Anthony, MT
- Antonelli, M
- Antrim, DJA
- Anulli, F
- Aoki, M
- Aperio Bella, L
- Arabidze, G
- Arai, Y
- et al.
Published Web Location
http://doi.org/10.1016/j.physletb.2018.07.006Abstract
© 2018 A search for a heavy neutral Higgs boson, A, decaying into a Z boson and another heavy Higgs boson, H, is performed using a data sample corresponding to an integrated luminosity of 36.1 fb−1from proton–proton collisions at s=13 TeV recorded in 2015 and 2016 by the ATLAS detector at the Large Hadron Collider. The search considers the Z boson decaying to electrons or muons and the H boson into a pair of b-quarks. No evidence for the production of an A boson is found. Considering each production process separately, the 95% confidence-level upper limits on the pp→A→ZH production cross-section times the branching ratio H→bb are in the range of 14–830 fb for the gluon–gluon fusion process and 26–570 fb for the b-associated process for the mass ranges 130–700 GeV of the H boson and 230–800 GeV of the A boson. The results are interpreted in the context of two-Higgs-doublet models.
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