- Main
Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the ℓℓbb and ℓℓWW final states in pp collisions at √s=13 TeV with the ATLAS detector
- Author(s): Aad, G;
- Abbott, B;
- Abbott, DC;
- Abed Abud, A;
- Abeling, K;
- Abhayasinghe, DK;
- Abidi, SH;
- AbouZeid, OS;
- Abraham, NL;
- Abramowicz, H;
- Abreu, H;
- Abulaiti, Y;
- Acharya, BS;
- Achkar, B;
- Adam, L;
- Adam Bourdarios, C;
- Adamczyk, L;
- Adamek, L;
- Adelman, J;
- Adiguzel, A;
- Adorni, S;
- Adye, T;
- Affolder, AA;
- Afik, Y;
- Agapopoulou, C;
- Agaras, MN;
- Aggarwal, A;
- Agheorghiesei, C;
- Aguilar-Saavedra, JA;
- Ahmad, A;
- Ahmadov, F;
- Ahmed, WS;
- Ai, X;
- Aielli, G;
- Akatsuka, S;
- Akbiyik, M;
- Åkesson, TPA;
- Akilli, E;
- Akimov, AV;
- Khoury, KA;
- Alberghi, GL;
- Albert, J;
- Alconada Verzini, MJ;
- Alderweireldt, S;
- Aleksa, M;
- Aleksandrov, IN;
- Alexa, C;
- Alexopoulos, T;
- Alfonsi, A;
- Alfonsi, F;
- Alhroob, M;
- Ali, B;
- Ali, S;
- Aliev, M;
- Alimonti, G;
- Allaire, C;
- Allbrooke, BMM;
- Allen, BW;
- Allport, PP;
- Aloisio, A;
- Alonso, F;
- Alpigiani, C;
- Alunno Camelia, E;
- Alvarez Estevez, M;
- Alviggi, MG;
- Amaral Coutinho, Y;
- Ambler, A;
- Ambroz, L;
- Amelung, C;
- Amidei, D;
- Amor Dos Santos, SP;
- Amoroso, S;
- Amrouche, CS;
- An, F;
- Anastopoulos, C;
- Andari, N;
- Andeen, T;
- Anders, JK;
- Andrean, SY;
- Andreazza, A;
- Andrei, V;
- Anelli, CR;
- Angelidakis, S;
- Angerami, A;
- Anisenkov, AV;
- Annovi, A;
- Antel, C;
- Anthony, MT;
- Antipov, E;
- Antonelli, M;
- Antrim, DJA;
- Anulli, F;
- Aoki, M;
- Aparisi Pozo, JA;
- Aparo, MA;
- Aperio Bella, L;
- Aranzabal, N;
- Araujo Ferraz, V;
- Araujo Pereira, R;
- Arcangeletti, C
- et al.
Published Web Location
https://doi.org/10.1140/epjc/s10052-021-09117-5Abstract
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 139 fb- 1 from proton–proton collisions at s=13 TeV recorded by the ATLAS detector at the LHC. The search considers the Z boson decaying into electrons or muons and the H boson into a pair of b-quarks or W bosons. The mass range considered is 230–800 GeV for the A boson and 130–700 GeV for the H boson. The data are in good agreement with the background predicted by the Standard Model, and therefore 95% confidence-level upper limits for σ×B(A→ZH)×B(H→bborH→WW) are set. The upper limits are in the range 0.0062–0.380 pb for the H→ bb channel and in the range 0.023–8.9 pb for the H→ WW channel. An interpretation of the results in the context of two-Higgs-doublet models is also given.
Main Content
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