Search for the direct production of charginos and neutralinos in final states with tau leptons in root s=13 TeV pp collisions 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; Shin-ichi Adachi; L. Adamczyk; J. Adelman; M. Adersberger; T. Adye; T. Adye; A. A. Affolder; Y.  Afik; T. Agatonovic-Jovin; C. Agheorghiesei; S. P. Ahlen; Alejandro Alonso Diaz; Milena Bajic; Peter Henrik Hansen; James William Monk; Mogens Dam; Fabian Alexander Jürgen Thiele; Troels Christian Petersen; Jørn Dines Hansen; Geert-Jan Besjes; Simon Holm Stark; Gorm Aske Gram Krohn Galster; Graig Wiglesworth; Flavia de Almeida Dias; Stefania Xella; Jørgen Beck Hansen

doi:10.1140/epjc/s10052-018-5583-9

Search for the direct production of charginos and neutralinos in final states with tau leptons in root s=13 TeV pp collisions 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, Shin-ichi Adachi, L. Adamczyk, J. Adelman, M. Adersberger, T. Adye, T. Adye, A. A. AffolderY. Afik, T. Agatonovic-Jovin, C. Agheorghiesei, S. P. Ahlen, Alejandro Alonso Diaz, Milena Bajic, Peter Henrik Hansen, James William Monk, Mogens Dam, Fabian Alexander Jürgen Thiele, Troels Christian Petersen, Jørn Dines Hansen, Geert-Jan Besjes, Simon Holm Stark, Gorm Aske Gram Krohn Galster, Graig Wiglesworth, Flavia de Almeida Dias, Stefania Xella, Jørgen Beck Hansen

Experimental Particle Physics

42 Citations (Scopus)

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Abstract

A search for the direct production of charginos and neutralinos in final states with at least two hadronically decaying tau leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 36.1 fb^{- 1}, recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. No significant deviation from the expected Standard Model background is observed. Limits are derived in scenarios of [InlineMediaObject not available: see fulltext.] pair production and of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] production in simplified models where the neutralinos and charginos decay solely via intermediate left-handed staus and tau sneutrinos, and the mass of the τ~ _L state is set to be halfway between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.]. Chargino masses up to 630 GeV are excluded at 95% confidence level in the scenario of direct production of [InlineMediaObject not available: see fulltext.] for a massless [InlineMediaObject not available: see fulltext.]. Common [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] masses up to 760 GeV are excluded in the case of production of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] assuming a massless [InlineMediaObject not available: see fulltext.]. Exclusion limits for additional benchmark scenarios with large and small mass-splitting between the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.] are also studied by varying the τ~ _L mass between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.].

Original language	English
Article number	154
Journal	European Physical Journal C
Volume	78
Issue number	2
Number of pages	33
ISSN	1434-6044
DOIs	https://doi.org/10.1140/epjc/s10052-018-5583-9
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., Adye, T., ... Hansen, J. B. (2018). Search for the direct production of charginos and neutralinos in final states with tau leptons in root s=13 TeV pp collisions with the ATLAS detector. European Physical Journal C, 78(2), Article 154. https://doi.org/10.1140/epjc/s10052-018-5583-9

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, Adye, T, Affolder, AA, Afik, Y, Agatonovic-Jovin, T, Agheorghiesei, C, Ahlen, SP, Alonso Diaz, A, Bajic, M, Hansen, PH, Monk, JW, Dam, M, Thiele, FAJ, Petersen, TC , Hansen, JD, Besjes, G-J, Stark, SH, Galster, GAGK, Wiglesworth, G, de Almeida Dias, F, Xella, S & Hansen, JB 2018, 'Search for the direct production of charginos and neutralinos in final states with tau leptons in root s=13 TeV pp collisions with the ATLAS detector', European Physical Journal C, vol. 78, no. 2, 154. https://doi.org/10.1140/epjc/s10052-018-5583-9

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abstract = "A search for the direct production of charginos and neutralinos in final states with at least two hadronically decaying tau leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 36.1 fb- 1, recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. No significant deviation from the expected Standard Model background is observed. Limits are derived in scenarios of [InlineMediaObject not available: see fulltext.] pair production and of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] production in simplified models where the neutralinos and charginos decay solely via intermediate left-handed staus and tau sneutrinos, and the mass of the τ~ L state is set to be halfway between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.]. Chargino masses up to 630 GeV are excluded at 95% confidence level in the scenario of direct production of [InlineMediaObject not available: see fulltext.] for a massless [InlineMediaObject not available: see fulltext.]. Common [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] masses up to 760 GeV are excluded in the case of production of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] assuming a massless [InlineMediaObject not available: see fulltext.]. Exclusion limits for additional benchmark scenarios with large and small mass-splitting between the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.] are also studied by varying the τ~ L mass between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.].",

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 Shin-ichi Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and T. Adye and Affolder, {A. A.} and Y. Afik and T. Agatonovic-Jovin and C. Agheorghiesei and Ahlen, {S. P.} and {Alonso Diaz}, Alejandro and Milena Bajic and Hansen, {Peter Henrik} and Monk, {James William} and Mogens Dam and Thiele, {Fabian Alexander J{\"u}rgen} and Petersen, {Troels Christian} and Hansen, {J{\o}rn Dines} and Geert-Jan Besjes and Stark, {Simon Holm} and Galster, {Gorm Aske Gram Krohn} and Graig Wiglesworth and {de Almeida Dias}, Flavia and Stefania Xella and Hansen, {J{\o}rgen Beck}",

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doi = "10.1140/epjc/s10052-018-5583-9",

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volume = "78",

journal = "European Physical Journal C",

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T1 - Search for the direct production of charginos and neutralinos in final states with tau leptons in root s=13 TeV pp collisions 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, Shin-ichi

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 - Ahlen, S. P.

AU - Alonso Diaz, Alejandro

AU - Bajic, Milena

AU - Hansen, Peter Henrik

AU - Monk, James William

AU - Dam, Mogens

AU - Thiele, Fabian Alexander Jürgen

AU - Petersen, Troels Christian

AU - Hansen, Jørn Dines

AU - Besjes, Geert-Jan

AU - Stark, Simon Holm

AU - Galster, Gorm Aske Gram Krohn

AU - Wiglesworth, Graig

AU - de Almeida Dias, Flavia

AU - Xella, Stefania

AU - Hansen, Jørgen Beck

PY - 2018/2/1

Y1 - 2018/2/1

N2 - A search for the direct production of charginos and neutralinos in final states with at least two hadronically decaying tau leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 36.1 fb- 1, recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. No significant deviation from the expected Standard Model background is observed. Limits are derived in scenarios of [InlineMediaObject not available: see fulltext.] pair production and of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] production in simplified models where the neutralinos and charginos decay solely via intermediate left-handed staus and tau sneutrinos, and the mass of the τ~ L state is set to be halfway between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.]. Chargino masses up to 630 GeV are excluded at 95% confidence level in the scenario of direct production of [InlineMediaObject not available: see fulltext.] for a massless [InlineMediaObject not available: see fulltext.]. Common [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] masses up to 760 GeV are excluded in the case of production of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] assuming a massless [InlineMediaObject not available: see fulltext.]. Exclusion limits for additional benchmark scenarios with large and small mass-splitting between the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.] are also studied by varying the τ~ L mass between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.].

AB - A search for the direct production of charginos and neutralinos in final states with at least two hadronically decaying tau leptons is presented. The analysis uses a dataset of pp collisions corresponding to an integrated luminosity of 36.1 fb- 1, recorded with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. No significant deviation from the expected Standard Model background is observed. Limits are derived in scenarios of [InlineMediaObject not available: see fulltext.] pair production and of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] production in simplified models where the neutralinos and charginos decay solely via intermediate left-handed staus and tau sneutrinos, and the mass of the τ~ L state is set to be halfway between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.]. Chargino masses up to 630 GeV are excluded at 95% confidence level in the scenario of direct production of [InlineMediaObject not available: see fulltext.] for a massless [InlineMediaObject not available: see fulltext.]. Common [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] masses up to 760 GeV are excluded in the case of production of [InlineMediaObject not available: see fulltext.] and [InlineMediaObject not available: see fulltext.] assuming a massless [InlineMediaObject not available: see fulltext.]. Exclusion limits for additional benchmark scenarios with large and small mass-splitting between the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.] are also studied by varying the τ~ L mass between the masses of the [InlineMediaObject not available: see fulltext.] and the [InlineMediaObject not available: see fulltext.].

U2 - 10.1140/epjc/s10052-018-5583-9

DO - 10.1140/epjc/s10052-018-5583-9

M3 - Journal article

C2 - 31264997

SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

IS - 2

M1 - 154

ER -

Search for the direct production of charginos and neutralinos in final states with tau leptons in root s=13 TeV pp collisions with the ATLAS detector

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