Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector

Associated organisational units

Text available via DOI:

https://doi.org/10.1016/j.physletb.2017.11.049
Final published version

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Published

Standard

Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector. / The ATLAS collaboration.
In: Physics Letters B, Vol. 776, 10.01.2018, p. 318-337.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{1d8900d51e2546fdb0942e150f2e6a10,

title = "Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector",

abstract = "A search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a leptonically decaying Z boson in proton–proton collisions at √s=13 TeV is presented. This search uses 36.1 fb−1 of data collected by the ATLAS experiment at the Large Hadron Collider. No significant deviation from the expectation of the Standard Model backgrounds is observed. Assuming the Standard Model ZH production cross-section, an observed (expected) upper limit of 67% (39%) at the 95% confidence level is set on the branching ratio of invisible decays of the Higgs boson with mass mH=125 GeV. The corresponding limits on the production cross-section of the ZH process with the invisible Higgs boson decays are also presented. Furthermore, exclusion limits on the dark matter candidate and mediator masses are reported in the framework of simplified dark matter models.",

author = "Barton, {Adam Edward} and Michael Beattie and Bertram, {Iain Alexander} and Guennadi Borissov and Bouhova-Thacker, {Evelina Vassileva} and Harald Fox and Grimm, {Kathryn Ann Tschann} and Henderson, {Robert Charles William} and Jones, {Roger William Lewis} and Vakhtang Kartvelishvili and Long, {Robin Eamonn} and Love, {Peter Allan} and Muenstermann, {Daniel Matthias Alfred} and Parker, {Adam Jackson} and Malcolm Skinner and Maria Smizanska and Walder, {James William} and Andy Wharton and Ben Whitmore and {The ATLAS collaboration}",

note = "Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license",

year = "2018",

month = jan,

day = "10",

doi = "10.1016/j.physletb.2017.11.049",

language = "English",

volume = "776",

pages = "318--337",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

}

RIS

TY - JOUR

T1 - Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at √s=13 TeV with the ATLAS detector

AU - Barton, Adam Edward

AU - Beattie, Michael

AU - Bertram, Iain Alexander

AU - Borissov, Guennadi

AU - Bouhova-Thacker, Evelina Vassileva

AU - Fox, Harald

AU - Grimm, Kathryn Ann Tschann

AU - Henderson, Robert Charles William

AU - Jones, Roger William Lewis

AU - Kartvelishvili, Vakhtang

AU - Long, Robin Eamonn

AU - Love, Peter Allan

AU - Muenstermann, Daniel Matthias Alfred

AU - Parker, Adam Jackson

AU - Skinner, Malcolm

AU - Smizanska, Maria

AU - Walder, James William

AU - Wharton, Andy

AU - Whitmore, Ben

AU - The ATLAS collaboration

N1 - Open Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics Under a Creative Commons license

PY - 2018/1/10

Y1 - 2018/1/10

N2 - A search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a leptonically decaying Z boson in proton–proton collisions at √s=13 TeV is presented. This search uses 36.1 fb−1 of data collected by the ATLAS experiment at the Large Hadron Collider. No significant deviation from the expectation of the Standard Model backgrounds is observed. Assuming the Standard Model ZH production cross-section, an observed (expected) upper limit of 67% (39%) at the 95% confidence level is set on the branching ratio of invisible decays of the Higgs boson with mass mH=125 GeV. The corresponding limits on the production cross-section of the ZH process with the invisible Higgs boson decays are also presented. Furthermore, exclusion limits on the dark matter candidate and mediator masses are reported in the framework of simplified dark matter models.

AB - A search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a leptonically decaying Z boson in proton–proton collisions at √s=13 TeV is presented. This search uses 36.1 fb−1 of data collected by the ATLAS experiment at the Large Hadron Collider. No significant deviation from the expectation of the Standard Model backgrounds is observed. Assuming the Standard Model ZH production cross-section, an observed (expected) upper limit of 67% (39%) at the 95% confidence level is set on the branching ratio of invisible decays of the Higgs boson with mass mH=125 GeV. The corresponding limits on the production cross-section of the ZH process with the invisible Higgs boson decays are also presented. Furthermore, exclusion limits on the dark matter candidate and mediator masses are reported in the framework of simplified dark matter models.

U2 - 10.1016/j.physletb.2017.11.049

DO - 10.1016/j.physletb.2017.11.049

M3 - Journal article

VL - 776

SP - 318

EP - 337

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

Research

Associated organisational units

Links

Text available via DOI: