Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 TeV

The CMS collaboration

doi:10.1007/JHEP08(2017)073

Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 TeV

The CMS collaboration

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A search for the production of heavy partners of the top quark with charge 5/3 (X_5/3) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb⁻¹, collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X_5/3 quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X_5/3 mass to date.[Figure not available: see fulltext.].

Original language	English (US)
Article number	73
Journal	Journal of High Energy Physics
Volume	2017
Issue number	8
DOIs	https://doi.org/10.1007/JHEP08(2017)073
State	Published - Aug 1 2017

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Keywords

Beyond Standard Model
Exotics
Hadron-Hadron scattering (experiments)
Top physics

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10.1007/JHEP08(2017)073

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@article{d4a1f7718fe1473fb1a987d3ac6441dc,

title = "Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 TeV",

abstract = "A search for the production of heavy partners of the top quark with charge 5/3 (X5/3) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb−1, collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X5/3 quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X5/3 mass to date.[Figure not available: see fulltext.].",

keywords = "Beyond Standard Model, Exotics, Hadron-Hadron scattering (experiments), Top physics",

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 V. Chekhovsky and V. Mossolov and {Suarez Gonzalez}, J. 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 {De Bruyn}, I. and Marlow, {Daniel Robert} and Olsen, {James D.} and Tully, {Christopher George}",

note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",

year = "2017",

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doi = "10.1007/JHEP08(2017)073",

language = "English (US)",

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T1 - Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 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 - Chekhovsky, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

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 - De Bruyn, I.

AU - Marlow, Daniel Robert

AU - Olsen, James D.

AU - Tully, Christopher George

PY - 2017/8/1

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N2 - A search for the production of heavy partners of the top quark with charge 5/3 (X5/3) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb−1, collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X5/3 quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X5/3 mass to date.[Figure not available: see fulltext.].

AB - A search for the production of heavy partners of the top quark with charge 5/3 (X5/3) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb−1, collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X5/3 quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X5/3 mass to date.[Figure not available: see fulltext.].

KW - Beyond Standard Model

KW - Exotics

KW - Hadron-Hadron scattering (experiments)

KW - Top physics

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DO - 10.1007/JHEP08(2017)073

M3 - Article

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SN - 1126-6708

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 8

M1 - 73

ER -

Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 TeV

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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