Search for B-L R -parity-violating top squarks in s√ =13 TeV pp collisions with the ATLAS experiment

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; A. A. Affolder; Y.  Afik; T. Agatonovic-Jovin; C. Agheorghiesei; J. A. Aguilar-Saavedra; S. P. Ahlen; F. Ahmadov; G. Aielli; Alejandro Alonso Diaz; Milena Bajic; Geert-Jan Besjes; Mogens Dam; Gorm Aske Gram Krohn Galster; Jørgen Beck Hansen; James William Monk; Peter Henrik Hansen; Jørn Dines Hansen; Flavia de Almeida Dias; Troels Christian Petersen; hqz214 hqz214; Simon Holm Stark; Graig Wiglesworth; Stefania Xella

doi:10.1103/PhysRevD.97.032003

Search for B-L R -parity-violating top squarks in s√ =13 TeV pp collisions with the ATLAS experiment

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, A. A. Affolder, Y. AfikT. Agatonovic-Jovin, C. Agheorghiesei, J. A. Aguilar-Saavedra, S. P. Ahlen, F. Ahmadov, G. Aielli, Alejandro Alonso Diaz, Milena Bajic, Geert-Jan Besjes, Mogens Dam, Gorm Aske Gram Krohn Galster, Jørgen Beck Hansen, James William Monk, Peter Henrik Hansen, Jørn Dines Hansen, Flavia de Almeida Dias, Troels Christian Petersen, hqz214 hqz214, Simon Holm Stark, Graig Wiglesworth, Stefania Xella

Experimental Particle Physics

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Abstract

A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb^-1 of proton-proton collisions at a center-of-mass energy of √s= 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

Original language	English
Article number	032003
Journal	Physical Review D
Volume	97
Issue number	3
Number of pages	28
ISSN	2470-0010
DOIs	https://doi.org/10.1103/PhysRevD.97.032003
Publication status	Published - 1 Feb 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., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., ... Xella, S. (2018). Search for B-L R -parity-violating top squarks in s√ =13 TeV pp collisions with the ATLAS experiment. Physical Review D, 97(3), [032003]. https://doi.org/10.1103/PhysRevD.97.032003

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, Affolder, AA, Afik, Y, Agatonovic-Jovin, T, Agheorghiesei, C, Aguilar-Saavedra, JA, Ahlen, SP, Ahmadov, F, Aielli, G, Alonso Diaz, A, Bajic, M, Besjes, G-J, Dam, M, Galster, GAGK, Hansen, JB, Monk, JW, Hansen, PH , Hansen, JD, de Almeida Dias, F, Petersen, TC, hqz214, H, Stark, SH, Wiglesworth, G & Xella, S 2018, 'Search for B-L R -parity-violating top squarks in s√ =13 TeV pp collisions with the ATLAS experiment', Physical Review D, vol. 97, no. 3, 032003. https://doi.org/10.1103/PhysRevD.97.032003

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title = "Search for B-L R -parity-violating top squarks in s√ =13 TeV pp collisions with the ATLAS experiment",

abstract = "A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb-1 of proton-proton collisions at a center-of-mass energy of √s= 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.",

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 Affolder, {A. A.} and Y. Afik and T. Agatonovic-Jovin and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and {Alonso Diaz}, Alejandro and Milena Bajic and Geert-Jan Besjes and Mogens Dam and Galster, {Gorm Aske Gram Krohn} and Hansen, {J{\o}rgen Beck} and Monk, {James William} and Hansen, {Peter Henrik} and Hansen, {J{\o}rn Dines} and {de Almeida Dias}, Flavia and Petersen, {Troels Christian} and hqz214 hqz214 and Stark, {Simon Holm} and Graig Wiglesworth and Stefania Xella",

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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 - Affolder, A. A.

AU - Afik, Y.

AU - Agatonovic-Jovin, T.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Alonso Diaz, Alejandro

AU - Bajic, Milena

AU - Besjes, Geert-Jan

AU - Dam, Mogens

AU - Galster, Gorm Aske Gram Krohn

AU - Hansen, Jørgen Beck

AU - Monk, James William

AU - Hansen, Peter Henrik

AU - Hansen, Jørn Dines

AU - de Almeida Dias, Flavia

AU - Petersen, Troels Christian

AU - hqz214, hqz214

AU - Stark, Simon Holm

AU - Wiglesworth, Graig

AU - Xella, Stefania

PY - 2018/2/1

Y1 - 2018/2/1

N2 - A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb-1 of proton-proton collisions at a center-of-mass energy of √s= 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

AB - A search is presented for the direct pair production of the stop, the supersymmetric partner of the top quark, that decays through an R-parity-violating coupling to a final state with two leptons and two jets, at least one of which is identified as a b-jet. The data set corresponds to an integrated luminosity of 36.1 fb-1 of proton-proton collisions at a center-of-mass energy of √s= 13 TeV, collected in 2015 and 2016 by the ATLAS detector at the LHC. No significant excess is observed over the Standard Model background, and exclusion limits are set on stop pair production at a 95% confidence level. Lower limits on the stop mass are set between 600 GeV and 1.5 TeV for branching ratios above 10% for decays to an electron or muon and a b-quark.

U2 - 10.1103/PhysRevD.97.032003

DO - 10.1103/PhysRevD.97.032003

M3 - Journal article

SN - 2470-0010

VL - 97

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 032003

ER -

Search for B-L R -parity-violating top squarks in s√ =13 TeV pp collisions with the ATLAS experiment

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