Search for exotic higgs boson decays &lt;em&gt;H → AA → 4γ&lt;/em&gt; with events containing two merged diphotons in proton-proton collisions at √&lt;em&gt;s&lt;/em&gt;=13  TeV

Tumasyan, A.; Adam, W.; Andrejkovic, J.W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Hussain, P.S.; Jeitler, M.; Caminada, L.; Ebrahimi, A.; Erdmann, W.; Horisberger, R.; Ingram, Q.; Kaestli, H.C.; Kotlinski, D.; Lange, C.; Missiroli, M.; Noehte, L.; Rohe, T.; Zhokin, A.

doi:10.1103/PhysRevLett.131.101801

Search for exotic higgs boson decays H → AA → 4γ with events containing two merged diphotons in proton-proton collisions at √s=13 TeV

Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Escalante Del Valle A, Hussain PS, Jeitler M, Caminada L, Ebrahimi A, Erdmann W, Horisberger R, Ingram Q, Kaestli HC, Kotlinski D, Lange C, Missiroli M, Noehte L, Rohe T, Zhokin A, et al.

Citation

Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Damanakis, K., … Zhokin, A. (2023). Search for exotic higgs boson decays H → AA → 4γ with events containing two merged diphotons in proton-proton collisions at √s=13 TeV. Physical Review Letters, 131(10), 101801 (32 pp.). https://doi.org/10.1103/PhysRevLett.131.101801

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:55006

We present the first direct search for exotic Higgs boson decays H → AA, A → γγ in events with two photonlike objects. The hypothetical particle A is a low-mass spin-0 particle decaying promptly to a merged diphoton reconstructed as a single photonlike object. We analyze the data collected by the CMS experiment at √s = 13 TeV corresponding to an integrated luminosity of 136 fb^-1. No excess above the estimated background is found. We set upper limits on the branching fraction B(H → AA → 4γ) of (0.9-3.3) × 10^-3 at 95% confidence level for masses of A in the range 0.1-1.2 GeV.

Details

Publication Type

Journal Article

Title

Search for exotic higgs boson decays H → AA → 4γ with events containing two merged diphotons in proton-proton collisions at √s=13 TeV

Author(s)

Tumasyan, A.

Adam, W.

Andrejkovic, J.W.

Bergauer, T.

Chatterjee, S.

Damanakis, K.