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(-)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 s=13 TeV at the LHC. In combination with the results at 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 / Aaboud, M., Aad, G., Abbott, B., Abbott, D.C., Abdinov, O., Abed Abud, A., Abhayasinghe, D.K., Abidi, S.H., Abouzeid, O.S., Abraham, N.L., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.S., Adachi, S., Adam, L., Adam Bourdarios, C., Adamczyk, L., Adamek, L., Adelman, J., 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

Follega F. M.;Iuppa R.;Ricci E.;
2019-01-01

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(-)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 s=13 TeV at the LHC. In combination with the results at 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
23
Aaboud, M.; Aad, G.; Abbott, B.; Abbott, D. C.; Abdinov, O.; Abed Abud, A.; Abhayasinghe, D. K.; Abidi, S. H.; Abouzeid, O. S.; Abraham, N. L.; Abramo...espandi
Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment / Aaboud, M., Aad, G., Abbott, B., Abbott, D.C., Abdinov, O., Abed Abud, A., Abhayasinghe, D.K., Abidi, S.H., Abouzeid, O.S., Abraham, N.L., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B.S., Adachi, S., Adam, L., Adam Bourdarios, C., Adamczyk, L., Adamek, L., Adelman, J., 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/11572/318407
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