Search for dark mesons decaying to top and bottom quarks in proton-proton collisions at s = 13 TeV with the ATLAS detector

Physics

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Experimental Particle Physics

Text available via DOI:

https://doi.org/10.1007/jhep09(2024)005
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Available under license: CC BY: Creative Commons Attribution 4.0 International License

Keywords

Dark Matter, Hadron-Hadron Scattering, Exotics, Beyond Standard Model

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

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Search for dark mesons decaying to top and bottom quarks in proton-proton collisions at s = 13 TeV with the ATLAS detector. / The ATLAS collaboration ; Sampson, Elliot.
In: Journal of High Energy Physics, Vol. 2024, No. 9, 5, 02.09.2024.

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

Bibtex

@article{bd9db22285534859bd6a8403a54a0539,

title = "Search for dark mesons decaying to top and bottom quarks in proton-proton collisions at s = 13 TeV with the ATLAS detector",

abstract = "A search for dark mesons originating from strongly-coupled, SU(2) dark flavor symmetry conserving models and decaying gaugephobically to pure Standard Model final states containing top and bottom quarks is presented. The search targets fully hadronic final states and final states with exactly one electron or muon and multiple jets. The analyzed data sample corresponds to an integrated luminosity of 140 fb{\^a}ˆ{\textquoteright}1 of proton-proton collisions collected at s = 13 TeV with the ATLAS detector at the Large Hadron Collider. No significant excess over the Standard Model background expectation is observed and the results are used to set the first direct constraints on this type of model. The two-dimensional signal space of dark pion masses m{\"I}€D and dark rho-meson masses m{\"I}�D is scanned. For m{\"I}€D/m{\"I}�D = 0.45, dark pions with masses m{\"I}€D< 940 GeV are excluded at the 95% CL, while for m{\"I}€D/m{\"I}�D = 0.25 masses m{\"I}€D< 740 GeV are excluded.",

keywords = "Dark Matter, Hadron-Hadron Scattering, Exotics, Beyond Standard Model",

author = "{The ATLAS collaboration} and Zainab Alsolami and A.E. Barton and G. Borissov and E.V. Bouhova-Thacker and Ruby Ferguson and James Ferrando and H. Fox and Alina Hagan and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and P.A. Love and E.J. Marshall and L. Meng and D. Muenstermann and Elliot Sampson and M. Smizanska and A.M. Wharton",

year = "2024",

month = sep,

day = "2",

doi = "10.1007/jhep09(2024)005",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag",

number = "9",

}

RIS

TY - JOUR

T1 - Search for dark mesons decaying to top and bottom quarks in proton-proton collisions at s = 13 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Alsolami, Zainab

AU - Barton, A.E.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Ferguson, Ruby

AU - Ferrando, James

AU - Fox, H.

AU - Hagan, Alina

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Love, P.A.

AU - Marshall, E.J.

AU - Meng, L.

AU - Muenstermann, D.

AU - Sampson, Elliot

AU - Smizanska, M.

AU - Wharton, A.M.

PY - 2024/9/2

Y1 - 2024/9/2

N2 - A search for dark mesons originating from strongly-coupled, SU(2) dark flavor symmetry conserving models and decaying gaugephobically to pure Standard Model final states containing top and bottom quarks is presented. The search targets fully hadronic final states and final states with exactly one electron or muon and multiple jets. The analyzed data sample corresponds to an integrated luminosity of 140 fbâˆ’1 of proton-proton collisions collected at s = 13 TeV with the ATLAS detector at the Large Hadron Collider. No significant excess over the Standard Model background expectation is observed and the results are used to set the first direct constraints on this type of model. The two-dimensional signal space of dark pion masses mÏ€D and dark rho-meson masses mÏ�D is scanned. For mÏ€D/mÏ�D = 0.45, dark pions with masses mÏ€D< 940 GeV are excluded at the 95% CL, while for mÏ€D/mÏ�D = 0.25 masses mÏ€D< 740 GeV are excluded.

AB - A search for dark mesons originating from strongly-coupled, SU(2) dark flavor symmetry conserving models and decaying gaugephobically to pure Standard Model final states containing top and bottom quarks is presented. The search targets fully hadronic final states and final states with exactly one electron or muon and multiple jets. The analyzed data sample corresponds to an integrated luminosity of 140 fbâˆ’1 of proton-proton collisions collected at s = 13 TeV with the ATLAS detector at the Large Hadron Collider. No significant excess over the Standard Model background expectation is observed and the results are used to set the first direct constraints on this type of model. The two-dimensional signal space of dark pion masses mÏ€D and dark rho-meson masses mÏ�D is scanned. For mÏ€D/mÏ�D = 0.45, dark pions with masses mÏ€D< 940 GeV are excluded at the 95% CL, while for mÏ€D/mÏ�D = 0.25 masses mÏ€D< 740 GeV are excluded.

KW - Dark Matter

KW - Hadron-Hadron Scattering

KW - Exotics

KW - Beyond Standard Model

U2 - 10.1007/jhep09(2024)005

DO - 10.1007/jhep09(2024)005

M3 - Journal article

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 9

M1 - 5

ER -

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