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Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs 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;
  • Al Khoury, K;
  • 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;
  • 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;
  • 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;
  • Arce, ATH;
  • Arguin, JF
  • et al.
Abstract

A search is presented for the production of the Standard Model Higgs boson in association with a high-energy photon. With a focus on the vector-boson fusion process and the dominant Higgs boson decay into b-quark pairs, the search benefits from a large reduction of multijet background compared to more inclusive searches. Results are reported from the analysis of 132 fb−1 of pp collision data at s = 13 TeV collected with the ATLAS detector at the LHC. The measured Higgs boson signal yield in this final-state signature is 1.3 ± 1.0 times the Standard Model prediction. The observed significance of the Higgs boson signal above the background is 1.3 standard deviations, compared to an expected significance of 1.0 standard deviations. [Figure not available: see fulltext.]

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