Search for the Higgs boson decays $H \to ee$ and $H \to eμ$ in $pp$ collisions 
at $\sqrt{s} = 13$ TeV with the ATLAS detector

ATLAS Collaboration,

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Search for the Higgs boson decays $H \to ee$ and $H \to eμ$ in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector

MPS-Authors

ATLAS Collaboration,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

ATLAS Collaboration (2020). Search for the Higgs boson decays $H \to ee$ and $H \to eμ$ in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. Physics Letters B, 801, 135148. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2019-194.

Cite as: https://hdl.handle.net/21.11116/0000-0008-1AAB-B

Abstract

Searches for the Higgs boson decays $H \to ee$ and $H \to e \mu$ are performed using data corresponding to an integrated luminosity of 139 fb$^{-1}$ collected with the ATLAS detector in $pp$ collisions at $\sqrt{s} = 13$ 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 $\mathcal{B}(H \to ee)$ is $3.6 \times 10^{-4}$ ($3.5 \times 10^{-4} $) and on $\mathcal{B}(H \to e \mu)$ is $6.1\times 10^{-5} $ ($5.8\times 10^{-5}$). These results represent improvements by factors of about five and six on the previous best limits on $\mathcal{B}(H \to ee)$ and $\mathcal{B}(H \to e \mu)$ respectively.