Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H→invisible decays where H is produced according to the standard model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1  fb^-1 of pp collisions at a center-of-mass energy of sqrt[s]=13  TeV at the LHC. In combination with the results at sqrt[s]=7 and 8 TeV, an exclusion limit on the H→invisible branching ratio of 0.26(0.17_-0.05^+0.07) at 95% confidence level is observed (expected).

Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment / Aloisio, A., Alberto Pppp, A., Mariagrazia Pppp, C., Vincenzo Pppp Della, P., Massimo Pppp, M., Leonardo Pppp, C., Francesco Pppp, R., Elvira Pppp, C., Giampaolo Pppp De, A., Riccardo Pppp, L., Salvatore Pppp Di, D., Camilla Pppp, D., Alessandra Pppp, I., Paolo Pppp, I., Vincenzo Pppp, P., Sabrina Pppp, S., Givi Pppp, C., Francesco Pppp, L., Marco Pppp, G., Antonio Pppp, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 122:23(2019), p. 231801. [10.1103/PhysRevLett.122.231801]

Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment

Aloisio;
2019

Abstract

Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H→invisible decays where H is produced according to the standard model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1  fb^-1 of pp collisions at a center-of-mass energy of sqrt[s]=13  TeV at the LHC. In combination with the results at sqrt[s]=7 and 8 TeV, an exclusion limit on the H→invisible branching ratio of 0.26(0.17_-0.05^+0.07) at 95% confidence level is observed (expected).
2019
Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment / Aloisio, A., Alberto Pppp, A., Mariagrazia Pppp, C., Vincenzo Pppp Della, P., Massimo Pppp, M., Leonardo Pppp, C., Francesco Pppp, R., Elvira Pppp, C., Giampaolo Pppp De, A., Riccardo Pppp, L., Salvatore Pppp Di, D., Camilla Pppp, D., Alessandra Pppp, I., Paolo Pppp, I., Vincenzo Pppp, P., Sabrina Pppp, S., Givi Pppp, C., Francesco Pppp, L., Marco Pppp, G., Antonio Pppp, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 122:23(2019), p. 231801. [10.1103/PhysRevLett.122.231801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/775793
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