Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector

M. Aaboud; G. Aad; B. Abbott; O. Abdinov; B Abeloos; S.H. Abidi; Ossama Sherif Alexander Abouzeid; NL Abraham; H. Abramowicz; H. Abreu; Y. Abulaiti; B.S. Acharya; Shin-ichi Adachi; L. Adamczyk; J. Adelman; M. Adersberger; T. Adye; A. A. Affolder; Y.  Afik; Milena Bajic; Geert-Jan Besjes; Mogens Dam; Alejandro Alonso Diaz; Flavia de Almeida Dias; Jørn Dines Hansen; Jørgen Beck Hansen; Peter Henrik Hansen; Gorm Aske Gram Krohn Galster; James William Monk; Troels Christian Petersen; Fabian Alexander Jürgen Thiele; Simon Holm Stark; Graig Wiglesworth; Stefania Xella

doi:10.1103/PhysRevD.98.032008

Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, O. Abdinov, B Abeloos, S.H. Abidi, Ossama Sherif Alexander Abouzeid, NL Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B.S. Acharya, Shin-ichi Adachi, L. Adamczyk, J. Adelman, M. Adersberger, T. Adye, A. A. Affolder, Y. Afik, Milena BajicGeert-Jan Besjes, Mogens Dam, Alejandro Alonso Diaz, Flavia de Almeida Dias, Jørn Dines Hansen, Jørgen Beck Hansen, Peter Henrik Hansen, Gorm Aske Gram Krohn Galster, James William Monk, Troels Christian Petersen, Fabian Alexander Jürgen Thiele, Simon Holm Stark, Graig Wiglesworth, Stefania Xella

Experimental Particle Physics

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Abstract

A search for direct pair production of top squarks in final states with two tau leptons, b-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data at s=13 TeV corresponding to an integrated luminosity of 36.1 fb-1 recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. Two exclusive channels with either two hadronically decaying tau leptons or one hadronically and one leptonically decaying tau lepton are considered. No significant deviation from the Standard Model predictions is observed in the data. The analysis results are interpreted in terms of model-independent limits and used to derive exclusion limits on the masses of the top squark t1 and the tau slepton τ1 in a simplified model of supersymmetry with a nearly massless gravitino. In this model, masses up to m(t1)=1.16 TeV and m(τ1)=1.00 TeV are excluded at 95% confidence level.

Original language	English
Article number	032008
Journal	Physical Review D
Volume	98
Issue number	3
Number of pages	33
ISSN	2470-0010
DOIs	https://doi.org/10.1103/PhysRevD.98.032008
Publication status	Published - 1 Aug 2018

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Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., Afik, Y., ... Xella, S. (2018). Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector. Physical Review D, 98(3), [032008]. https://doi.org/10.1103/PhysRevD.98.032008

Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, Abouzeid, OSA, Abraham, NL, Abramowicz, H, Abreu, H, Abulaiti, Y, Acharya, BS, Adachi, S, Adamczyk, L, Adelman, J, Adersberger, M, Adye, T, Affolder, AA, Afik, Y, Bajic, M, Besjes, G-J, Dam, M, Alonso Diaz, A, de Almeida Dias, F, Hansen, JD , Hansen, JB , Hansen, PH, Galster, GAGK, Monk, JW, Petersen, TC, Thiele, FAJ, Stark, SH, Wiglesworth, G & Xella, S 2018, 'Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector', Physical Review D, vol. 98, no. 3, 032008. https://doi.org/10.1103/PhysRevD.98.032008

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title = "Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector",

abstract = "A search for direct pair production of top squarks in final states with two tau leptons, b-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data at s=13 TeV corresponding to an integrated luminosity of 36.1 fb-1 recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. Two exclusive channels with either two hadronically decaying tau leptons or one hadronically and one leptonically decaying tau lepton are considered. No significant deviation from the Standard Model predictions is observed in the data. The analysis results are interpreted in terms of model-independent limits and used to derive exclusion limits on the masses of the top squark t1 and the tau slepton τ1 in a simplified model of supersymmetry with a nearly massless gravitino. In this model, masses up to m(t1)=1.16 TeV and m(τ1)=1.00 TeV are excluded at 95% confidence level.",

author = "M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B Abeloos and S.H. Abidi and Abouzeid, {Ossama Sherif Alexander} and NL Abraham and H. Abramowicz and H. Abreu and Y. Abulaiti and B.S. Acharya and Shin-ichi Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and Affolder, {A. A.} and Y. Afik and Milena Bajic and Geert-Jan Besjes and Mogens Dam and {Alonso Diaz}, Alejandro and {de Almeida Dias}, Flavia and Hansen, {J{\o}rn Dines} and Hansen, {J{\o}rgen Beck} and Hansen, {Peter Henrik} and Galster, {Gorm Aske Gram Krohn} and Monk, {James William} and Petersen, {Troels Christian} and Thiele, {Fabian Alexander J{\"u}rgen} and Stark, {Simon Holm} and Graig Wiglesworth and Stefania Xella",

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T1 - Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdinov, O.

AU - Abeloos, B

AU - Abidi, S.H.

AU - Abouzeid, Ossama Sherif Alexander

AU - Abraham, NL

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B.S.

AU - Adachi, Shin-ichi

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Bajic, Milena

AU - Besjes, Geert-Jan

AU - Dam, Mogens

AU - Alonso Diaz, Alejandro

AU - de Almeida Dias, Flavia

AU - Hansen, Jørn Dines

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Galster, Gorm Aske Gram Krohn

AU - Monk, James William

AU - Petersen, Troels Christian

AU - Thiele, Fabian Alexander Jürgen

AU - Stark, Simon Holm

AU - Wiglesworth, Graig

AU - Xella, Stefania

PY - 2018/8/1

Y1 - 2018/8/1

N2 - A search for direct pair production of top squarks in final states with two tau leptons, b-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data at s=13 TeV corresponding to an integrated luminosity of 36.1 fb-1 recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. Two exclusive channels with either two hadronically decaying tau leptons or one hadronically and one leptonically decaying tau lepton are considered. No significant deviation from the Standard Model predictions is observed in the data. The analysis results are interpreted in terms of model-independent limits and used to derive exclusion limits on the masses of the top squark t1 and the tau slepton τ1 in a simplified model of supersymmetry with a nearly massless gravitino. In this model, masses up to m(t1)=1.16 TeV and m(τ1)=1.00 TeV are excluded at 95% confidence level.

AB - A search for direct pair production of top squarks in final states with two tau leptons, b-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data at s=13 TeV corresponding to an integrated luminosity of 36.1 fb-1 recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. Two exclusive channels with either two hadronically decaying tau leptons or one hadronically and one leptonically decaying tau lepton are considered. No significant deviation from the Standard Model predictions is observed in the data. The analysis results are interpreted in terms of model-independent limits and used to derive exclusion limits on the masses of the top squark t1 and the tau slepton τ1 in a simplified model of supersymmetry with a nearly massless gravitino. In this model, masses up to m(t1)=1.16 TeV and m(τ1)=1.00 TeV are excluded at 95% confidence level.

U2 - 10.1103/PhysRevD.98.032008

DO - 10.1103/PhysRevD.98.032008

M3 - Journal article

SN - 2470-0010

VL - 98

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 032008

ER -

Search for top squarks decaying to tau sleptons in pp collisions at root s=13 TeV with the ATLAS detector

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