Search for supersymmetry in events with b-tagged jets and missing transverse momentum 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; R. Abreu; Y. Abulaiti; B.S. Acharya; Sosuke Adachi; L. Adamczyk; J Adelman; M. Adersberger; T. Adye; Milena Bajic; Geert-Jan Besjes; James William Monk; Troels Christian Petersen; Mogens Dam; Jørgen Beck Hansen; Simon Holm Stark; Graig Wiglesworth; Flavia de Almeida Dias; Jørn Dines Hansen; Alejandro Alonso Diaz; Gorm Aske Gram Krohn Galster; Fabian Alexander Jürgen Thiele; Peter Henrik Hansen; Stefania Xella

doi:10.1007/JHEP11(2017)195

Search for supersymmetry in events with b-tagged jets and missing transverse momentum 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 , R. Abreu, Y. Abulaiti, B.S. Acharya, Sosuke Adachi, L. Adamczyk, J Adelman, M. Adersberger, T. Adye, Milena Bajic, Geert-Jan BesjesJames William Monk, Troels Christian Petersen, Mogens Dam, Jørgen Beck Hansen, Simon Holm Stark, Graig Wiglesworth, Flavia de Almeida Dias, Jørn Dines Hansen, Alejandro Alonso Diaz, Gorm Aske Gram Krohn Galster, Fabian Alexander Jürgen Thiele, Peter Henrik Hansen, Stefania Xella

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Abstract

A search for the supersymmetric partners of the Standard Model bottom and top quarks is presented. The search uses 36.1 fb⁻¹ of pp collision data at s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Direct production of pairs of bottom and top squarks (b¯ ₁ and t¯ ₁) is searched for in final states with b-tagged jets and missing transverse momentum. Distinctive selections are defined with either no charged leptons (electrons or muons) in the final state, or one charged lepton. The zero-lepton selection targets models in which the b¯ ₁ is the lightest squark and decays via b¯1→bχ¯10, where χ¯10 is the lightest neutralino. The one-lepton final state targets models where bottom or top squarks are produced and can decay into multiple channels, b¯1→bχ¯10 and b¯1→t or t¯1→tχ¯10 and t¯1→b where χ¯1± is the lightest chargino and the mass difference mχ¯1±−mχ¯10 is set to 1 GeV. No excess above the expected Standard Model background is observed. Exclusion limits at 95% confidence level on the mass of third-generation squarks are derived in various supersymmetry-inspired simplified models.

Originalsprog	Engelsk
Artikelnummer	195
Tidsskrift	Journal of High Energy Physics
Vol/bind	2017
Udgave nummer	11
Antal sider	50
ISSN	1126-6708
DOI	https://doi.org/10.1007/JHEP11(2017)195
Status	Udgivet - 1 nov. 2017

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10.1007/JHEP11(2017)195Licens: CC BY

Aaboud2017_Article_SearchForSupersymmetryInEventsForlagets udgivne version, 1,01 MBLicens: CC BY

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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., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Bajic, M., ... Xella, S. (2017). Search for supersymmetry in events with b-tagged jets and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector. Journal of High Energy Physics, 2017(11), Artikel 195. https://doi.org/10.1007/JHEP11(2017)195

Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, Abouzeid, OSA, Abraham, NL, Abramowicz, H, Abreu , H, Abreu, R, Abulaiti, Y, Acharya, BS, Adachi, S, Adamczyk, L, Adelman, J, Adersberger, M, Adye, T, Bajic, M, Besjes, G-J, Monk, JW, Petersen, TC , Dam, M , Hansen, JB, Stark, SH, Wiglesworth, G, de Almeida Dias, F, Hansen, JD, Alonso Diaz, A, Galster, GAGK, Thiele, FAJ, Hansen, PH & Xella, S 2017, 'Search for supersymmetry in events with b-tagged jets and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector', Journal of High Energy Physics, bind 2017, nr. 11, 195. https://doi.org/10.1007/JHEP11(2017)195

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title = "Search for supersymmetry in events with b-tagged jets and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector",

abstract = "A search for the supersymmetric partners of the Standard Model bottom and top quarks is presented. The search uses 36.1 fb−1 of pp collision data at s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Direct production of pairs of bottom and top squarks (b¯ 1 and t¯ 1) is searched for in final states with b-tagged jets and missing transverse momentum. Distinctive selections are defined with either no charged leptons (electrons or muons) in the final state, or one charged lepton. The zero-lepton selection targets models in which the b¯ 1 is the lightest squark and decays via b¯1→bχ¯10, where χ¯10 is the lightest neutralino. The one-lepton final state targets models where bottom or top squarks are produced and can decay into multiple channels, b¯1→bχ¯10 and b¯1→t or t¯1→tχ¯10 and t¯1→b where χ¯1± is the lightest chargino and the mass difference mχ¯1±−mχ¯10 is set to 1 GeV. No excess above the expected Standard Model background is observed. Exclusion limits at 95% confidence level on the mass of third-generation squarks are derived in various supersymmetry-inspired simplified models.",

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 R. Abreu and Y. Abulaiti and B.S. Acharya and Sosuke Adachi and L. Adamczyk and J Adelman and M. Adersberger and T. Adye and Milena Bajic and Geert-Jan Besjes and Monk, {James William} and Petersen, {Troels Christian} and Mogens Dam and Hansen, {J{\o}rgen Beck} and Stark, {Simon Holm} and Graig Wiglesworth and {de Almeida Dias}, Flavia and Hansen, {J{\o}rn Dines} and {Alonso Diaz}, Alejandro and Galster, {Gorm Aske Gram Krohn} and Thiele, {Fabian Alexander J{\"u}rgen} and Hansen, {Peter Henrik} and Stefania Xella",

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T1 - Search for supersymmetry in events with b-tagged jets and missing transverse momentum 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 - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B.S.

AU - Adachi, Sosuke

AU - Adamczyk, L.

AU - Adelman, J

AU - Adersberger, M.

AU - Adye, T.

AU - Bajic, Milena

AU - Besjes, Geert-Jan

AU - Monk, James William

AU - Petersen, Troels Christian

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - Stark, Simon Holm

AU - Wiglesworth, Graig

AU - de Almeida Dias, Flavia

AU - Hansen, Jørn Dines

AU - Alonso Diaz, Alejandro

AU - Galster, Gorm Aske Gram Krohn

AU - Thiele, Fabian Alexander Jürgen

AU - Hansen, Peter Henrik

AU - Xella, Stefania

PY - 2017/11/1

Y1 - 2017/11/1

N2 - A search for the supersymmetric partners of the Standard Model bottom and top quarks is presented. The search uses 36.1 fb−1 of pp collision data at s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Direct production of pairs of bottom and top squarks (b¯ 1 and t¯ 1) is searched for in final states with b-tagged jets and missing transverse momentum. Distinctive selections are defined with either no charged leptons (electrons or muons) in the final state, or one charged lepton. The zero-lepton selection targets models in which the b¯ 1 is the lightest squark and decays via b¯1→bχ¯10, where χ¯10 is the lightest neutralino. The one-lepton final state targets models where bottom or top squarks are produced and can decay into multiple channels, b¯1→bχ¯10 and b¯1→t or t¯1→tχ¯10 and t¯1→b where χ¯1± is the lightest chargino and the mass difference mχ¯1±−mχ¯10 is set to 1 GeV. No excess above the expected Standard Model background is observed. Exclusion limits at 95% confidence level on the mass of third-generation squarks are derived in various supersymmetry-inspired simplified models.

AB - A search for the supersymmetric partners of the Standard Model bottom and top quarks is presented. The search uses 36.1 fb−1 of pp collision data at s=13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Direct production of pairs of bottom and top squarks (b¯ 1 and t¯ 1) is searched for in final states with b-tagged jets and missing transverse momentum. Distinctive selections are defined with either no charged leptons (electrons or muons) in the final state, or one charged lepton. The zero-lepton selection targets models in which the b¯ 1 is the lightest squark and decays via b¯1→bχ¯10, where χ¯10 is the lightest neutralino. The one-lepton final state targets models where bottom or top squarks are produced and can decay into multiple channels, b¯1→bχ¯10 and b¯1→t or t¯1→tχ¯10 and t¯1→b where χ¯1± is the lightest chargino and the mass difference mχ¯1±−mχ¯10 is set to 1 GeV. No excess above the expected Standard Model background is observed. Exclusion limits at 95% confidence level on the mass of third-generation squarks are derived in various supersymmetry-inspired simplified models.

U2 - 10.1007/JHEP11(2017)195

DO - 10.1007/JHEP11(2017)195

M3 - Journal article

SN - 1126-6708

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 195

ER -

Search for supersymmetry in events with b-tagged jets and missing transverse momentum in pp collisions at root s=13 TeV with the ATLAS detector

Abstract

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