Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √s=8 TeV

The CMS collaboration

doi:10.1007/JHEP03(2018)167

Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √s=8 TeV

The CMS collaboration

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Austrian Academy of Sciences
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Vrije Universiteit Brussel
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University of Split
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Charles University
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University of Helsinki
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German Electron Synchrotron
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Karlsruhe Institute of Technology
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
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University of Ioannina
Eötvös Loránd University
Wigner Research Centre for Physics
Institute for Nuclear Research
University of Debrecen
Indian Institute of Science Bangalore
National Institute of Science Education and Research
Indian Institute of Technology Bhubaneswar
Visva-Bharati University
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Panjab University
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Saha Institute of Nuclear Physics
Indian Institute of Technology Madras
Homi Bhabha National Institute
Tata Institute of Fundamental Research
University of Ruhuna
Indian Institute of Science Education and Research Pune
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Isfahan University of Technology
Yazd University
Islamic Azad University
University College Dublin
National Institute for Nuclear Physics
University of Bari
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University of Bologna
University of Catania
University of Florence
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Korea University
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University of Seoul
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The University of Auckland
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University of Warsaw
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University of Florida
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Resumen

Results are presented from a search for natural gauge-mediated supersymmetry (SUSY) in a scenario in which the top squark is the lightest squark, the next-to-lightest SUSY particle is a bino-like neutralino, and the lightest SUSY particle is the gravitino. The strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. The search is performed using a sample of pp collision data accumulated by the CMS experiment at s=8 TeV, corresponding to an integrated luminosity of 19.7 fb⁻¹. The final state consists of a lepton (electron or muon), jets, and one or two photons. The imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. No excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated SUSY breaking that leads to exclusion of top squark masses below 650–730 GeV.[Figure not available: see fulltext.].

Idioma original	Inglés
Número de artículo	167
Publicación	Journal of High Energy Physics
Volumen	2018
N.º	3
DOI	https://doi.org/10.1007/JHEP03(2018)167
Estado	Publicada - 1 mar 2018

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title = "Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √s=8 TeV",

abstract = "Results are presented from a search for natural gauge-mediated supersymmetry (SUSY) in a scenario in which the top squark is the lightest squark, the next-to-lightest SUSY particle is a bino-like neutralino, and the lightest SUSY particle is the gravitino. The strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. The search is performed using a sample of pp collision data accumulated by the CMS experiment at s=8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The final state consists of a lepton (electron or muon), jets, and one or two photons. The imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. No excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated SUSY breaking that leads to exclusion of top squark masses below 650–730 GeV.[Figure not available: see fulltext.].",

keywords = "Hadron-Hadron scattering (experiments), Supersymmetry",

author = "\{The CMS collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and I. Kr{\"a}tschmer and D. Liko and T. Matsushita and I. Mikulec and D. Rabady and N. Rad and B. Rahbaran and H. Rohringer and J. Schieck and J. Strauss and W. Waltenberger and Wulz, \{C. E.\} and O. Dvornikov and V. Makarenko and V. Mossolov and \{Suarez Gonzalez\}, J. and V. Zykunov and N. Shumeiko and S. Alderweireldt and \{De Wolf\}, \{E. A.\} and X. Janssen and J. Lauwers and \{Van De Klundert\}, M. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Van Spilbeeck\}, A. and \{Abu Zeid\}, S. and F. Blekman and J. D{\textquoteright}Hondt and N. Daci and \{Carrera Jarrin\}, E.",

note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",

year = "2018",

month = mar,

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doi = "10.1007/JHEP03(2018)167",

language = "Ingl{\'e}s",

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T1 - Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √s=8 TeV

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krätschmer, I.

AU - Liko, D.

AU - Matsushita, T.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rad, N.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schieck, J.

AU - Strauss, J.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Dvornikov, O.

AU - Makarenko, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - Zykunov, V.

AU - Shumeiko, N.

AU - Alderweireldt, S.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Lauwers, J.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Abu Zeid, S.

AU - Blekman, F.

AU - D’Hondt, J.

AU - Daci, N.

AU - Carrera Jarrin, E.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Results are presented from a search for natural gauge-mediated supersymmetry (SUSY) in a scenario in which the top squark is the lightest squark, the next-to-lightest SUSY particle is a bino-like neutralino, and the lightest SUSY particle is the gravitino. The strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. The search is performed using a sample of pp collision data accumulated by the CMS experiment at s=8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The final state consists of a lepton (electron or muon), jets, and one or two photons. The imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. No excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated SUSY breaking that leads to exclusion of top squark masses below 650–730 GeV.[Figure not available: see fulltext.].

AB - Results are presented from a search for natural gauge-mediated supersymmetry (SUSY) in a scenario in which the top squark is the lightest squark, the next-to-lightest SUSY particle is a bino-like neutralino, and the lightest SUSY particle is the gravitino. The strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. The search is performed using a sample of pp collision data accumulated by the CMS experiment at s=8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The final state consists of a lepton (electron or muon), jets, and one or two photons. The imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. No excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated SUSY breaking that leads to exclusion of top squark masses below 650–730 GeV.[Figure not available: see fulltext.].

KW - Hadron-Hadron scattering (experiments)

KW - Supersymmetry

UR - https://www.scopus.com/pages/publications/85049801810

U2 - 10.1007/JHEP03(2018)167

DO - 10.1007/JHEP03(2018)167

M3 - Artículo

AN - SCOPUS:85049801810

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

M1 - 167

ER -

Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at √s=8 TeV

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