Searches for Invisible Decays of the Higgs Boson in pp Collisions at √s = 7, 8, and 13 TeV

Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 fb⁻¹ at centre-of-mass energies of 7, 8, and 13 TeV, respectively. The search channels target Higgs boson production via glu...

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Bibliographic Details
Main Authors: CMS Collaboration, Abercrombie, Daniel Robert, Allen, Brandon Leigh, Apyan, Aram, Barbieri, Richard Alexander, Baty, Austin Alan, Bi, Ran, Bierwagen, Katharina, Brandt, Stephanie Akemi, Busza, Wit, Cali, Ivan Amos, Demiragli, Zeynep, Di Matteo, Leonardo, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Hsu, Dylan George, Iiyama, Yutaro, Innocenti, Gian Michele, Klute, Markus, Kovalskyi, Dmytro, Krajczar, Krisztian F., Lai, Yue Shi, Lee, Yen-Jie, Levin, Amy Elizabeth, Luckey Jr, P David, Maier, Benedikt, Marini, Andrea Carlo, McGinn, Christopher Francis, Mironov, Camelia Maria, Narayanan, Siddharth Madhavan, Niu, Xinmei, Paus, Christoph M. E., Roland, Christof E, Roland, Gunther M, Salfeld-Nebgen, Jakob Maxillian Henry, Stephans, George S. F., Sumorok, Konstanty C, Tatar, Kaya, Varma, Mukund Madhav, Velicanu, Dragos Alexandru, Veverka, Jan, Wang, Jing, Wang, Ta-Wei, Wyslouch, Boleslaw, Yang, Ming, Wyslouch, Victoria
Other Authors: Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Format: Article
Published: Springer Nature 2018
Online Access:http://hdl.handle.net/1721.1/118604
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Description
Summary:Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 fb⁻¹ at centre-of-mass energies of 7, 8, and 13 TeV, respectively. The search channels target Higgs boson production via gluon fusion, vector boson fusion, and in association with a vector boson. Upper limits are placed on the branching fraction of the Higgs boson decay to invisible particles, as a function of the assumed production cross sections. The combination of all channels, assuming standard model production, yields an observed (expected) upper limit on the invisible branching fraction of 0.24 (0.23) at the 95% confidence level. The results are also interpreted in the context of Higgs-portal dark matter models.