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Search for the Higgs boson decays H → ee and H → eμ in pp collisions at s=13TeV 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
  • 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
  • Alexopoulos, T
  • Alfonsi, A
  • Alfonsi, F
  • Alhroob, M
  • Ali, B
  • Aliev, M
  • Alimonti, G
  • 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
  • Antipov, E
  • Antonelli, M
  • Antrim, DJA
  • Anulli, F
  • Aoki, M
  • Aparisi Pozo, JA
  • Aperio Bella, L
  • Araque, JP
  • Araujo Ferraz, V
  • Araujo Pereira, R
  • et al.
Abstract

© 2019 The Author Searches for the Higgs boson decays H→ee and H→eμ are performed using data corresponding to an integrated luminosity of 139fb−1 collected with the ATLAS detector in pp collisions at s=13 TeV at the LHC. No significant signals are observed, in agreement with the Standard Model expectation. For a Higgs boson mass of 125 GeV, the observed (expected) upper limit at the 95% confidence level on the branching fraction B(H→ee) is 3.6×10−4 (3.5×10−4) and on B(H→eμ) is 6.2×10−5 (5.9×10−5). These results represent improvements by factors of about five and six on the previous best limits on B(H→ee) and B(H→eμ) respectively.

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