- Main
Search for non-resonant Higgs boson pair production in the bbℓνℓν final state with the ATLAS detector in pp collisions at s=13 TeV
- 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;
- Adachi, S;
- Adam, L;
- Adam Bourdarios, C;
- Adamczyk, L;
- Adamek, L;
- Adelman, J;
- Adersberger, M;
- Adiguzel, A;
- Adorni, S;
- Adye, T;
- Affolder, AA;
- Afik, Y;
- Agapopoulou, C;
- Agaras, MN;
- Aggarwal, A;
- Agheorghiesei, C;
- Aguilar-Saavedra, JA;
- Ahmadov, F;
- Ahmed, WS;
- Ai, X;
- Aielli, G;
- Akatsuka, S;
- Åkesson, TPA;
- Akilli, E;
- Akimov, AV;
- Al Khoury, K;
- Alberghi, GL;
- Albert, J;
- Alconada Verzini, MJ;
- Alderweireldt, S;
- Aleksa, M;
- Aleksandrov, IN;
- Alexa, C;
- Alexandre, D;
- Alexopoulos, T;
- Alfonsi, A;
- Alfonsi, F;
- Alhroob, M;
- Ali, B;
- Alimonti, G;
- Alison, J;
- Alkire, SP;
- Allaire, C;
- Allbrooke, BMM;
- Allen, BW;
- Allport, PP;
- Aloisio, A;
- Alonso, A;
- Alonso, F;
- Alpigiani, C;
- Alshehri, AA;
- Alvarez Estevez, M;
- Álvarez Piqueras, D;
- 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, CF;
- Anders, JK;
- Andreazza, A;
- Andrei, V;
- Anelli, CR;
- Angelidakis, S;
- Angerami, A;
- Anisenkov, AV;
- Annovi, A;
- Antel, C;
- Anthony, MT;
- Antonelli, M;
- Antrim, DJA;
- Anulli, F;
- Aoki, M;
- Aparisi Pozo, JA;
- Aperio Bella, L;
- Arabidze, G;
- Araque, JP;
- Araujo Ferraz, V
- et al.
Published Web Location
https://doi.org/10.1016/j.physletb.2019.135145Abstract
A search for non-resonant Higgs boson pair production, as predicted by the Standard Model, is presented, where one of the Higgs bosons decays via the H→bb channel and the other via one of the H→WW⁎/ZZ⁎/ττ channels. The analysis selection requires events to have at least two b-tagged jets and exactly two leptons (electrons or muons) with opposite electric charge in the final state. Candidate events consistent with Higgs boson pair production are selected using a multi-class neural network discriminant. The analysis uses 139 fb−1 of pp collision data recorded at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. An observed (expected) upper limit of 1.2 (0.9−0.3+0.4) pb is set on the non-resonant Higgs boson pair production cross-section at 95% confidence level, which is equivalent to 40 (29−9+14) times the value predicted in the Standard Model.
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