Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV

S. Chatrchyan; V. Khachatryan; A. M. Sirunyan; A. Tumasyan; W. Adam; T. Bergauer; M. Dragicevic; J. Erö; C. Fabjan; M. Friedl; R. Frühwirth; V. M. Ghete; C. Hartl; N. Hörmann; J. Hrubec; M. Jeitler; W. Kiesenhofer; V. Knünz; M. Krammer; I. Krätschmer; D. Liko; I. Mikulec; D. Rabady; B. Rahbaran; H. Rohringer; R. Schöfbeck; J. Strauss; A. Taurok; W. Treberer-Treberspurg; W. Waltenberger; C. E. Wulz; V. Mossolov; N. Shumeiko; J. Suarez Gonzalez; S. Alderweireldt; M. Bansal; S. Bansal; T. Cornelis; E. A. Dewolf; X. Janssen; A. Knutsson; S. Luyckx; S. Ochesanu; R. Rougny; M. Van De Klundert; H. Van Haevermaet; P. Van Mechelen; N. Van Remortel; A. Van Spilbeeck; A. Radi; The CMS Collaboration

doi:10.1007/JHEP05(2014)108

Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV

S. Chatrchyan^*, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl, R. Frühwirth, V. M. Ghete, C. Hartl, N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, M. Krammer, I. KrätschmerD. Liko, I. Mikulec, D. Rabady, B. Rahbaran, H. Rohringer, R. Schöfbeck, J. Strauss, A. Taurok, W. Treberer-Treberspurg, W. Waltenberger, C. E. Wulz, V. Mossolov, N. Shumeiko, J. Suarez Gonzalez, S. Alderweireldt, M. Bansal, S. Bansal, T. Cornelis, E. A. Dewolf, X. Janssen, A. Knutsson, S. Luyckx, S. Ochesanu, R. Rougny, M. Van De Klundert, H. Van Haevermaet, P. Van Mechelen, N. Van Remortel, A. Van Spilbeeck, A. Radi, The CMS Collaboration

^*Corresponding author for this work

Physics

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Abstract

Results are presented from a search for the production of a heavy gauge boson W′ decaying into a top and a bottom quark, using a data set collected by the CMS experiment at √s = 8TeV and corresponding to an integrated luminosity of 19.5 fb⁻¹. Various models of W′-boson production are studied by allowing for an arbitrary combination of left-and right-handed couplings. The analysis is based on the detection of events with a lepton (e, μ), jets, and missing transverse energy in the final state. No evidence for W′-boson production is found and 95% confidence level upper limits on the production cross section times branching fraction are obtained. For W′ bosons with purely right-handed couplings, and for those with left-handed couplings assuming no interference effects, the observed 95% confidence level limit is M(W′) > 2.05TeV. For W′ bosons with purely left handed couplings, including interference effects, the observed 95% confidence level limit is M(W′) > 1.84TeV. The results presented in this paper are the most stringent limits published to date.

Original language	English
Article number	108
Journal	Journal of High Energy Physics
Volume	2014
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2014)108
Publication status	Published - 2014

Keywords

Exotics
Hadron-Hadron Scattering

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP05(2014)108

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Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knünz, V., Krammer, M., ... The CMS Collaboration (2014). Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV. Journal of High Energy Physics, 2014(5), Article 108. https://doi.org/10.1007/JHEP05(2014)108

Chatrchyan, S, Khachatryan, V, Sirunyan, AM, Tumasyan, A, Adam, W, Bergauer, T, Dragicevic, M, Erö, J, Fabjan, C, Friedl, M, Frühwirth, R, Ghete, VM, Hartl, C, Hörmann, N, Hrubec, J, Jeitler, M, Kiesenhofer, W, Knünz, V, Krammer, M, Krätschmer, I, Liko, D, Mikulec, I, Rabady, D, Rahbaran, B, Rohringer, H, Schöfbeck, R, Strauss, J, Taurok, A, Treberer-Treberspurg, W, Waltenberger, W, Wulz, CE, Mossolov, V, Shumeiko, N, Suarez Gonzalez, J, Alderweireldt, S, Bansal, M, Bansal, S, Cornelis, T, Dewolf, EA, Janssen, X, Knutsson, A, Luyckx, S, Ochesanu, S, Rougny, R, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Van Spilbeeck, A, Radi, A & The CMS Collaboration 2014, 'Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV', Journal of High Energy Physics, vol. 2014, no. 5, 108. https://doi.org/10.1007/JHEP05(2014)108

@article{a230eb24f03d4371969043a23fd7c057,

title = "Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV",

abstract = "Results are presented from a search for the production of a heavy gauge boson W′ decaying into a top and a bottom quark, using a data set collected by the CMS experiment at √s = 8TeV and corresponding to an integrated luminosity of 19.5 fb−1. Various models of W′-boson production are studied by allowing for an arbitrary combination of left-and right-handed couplings. The analysis is based on the detection of events with a lepton (e, μ), jets, and missing transverse energy in the final state. No evidence for W′-boson production is found and 95% confidence level upper limits on the production cross section times branching fraction are obtained. For W′ bosons with purely right-handed couplings, and for those with left-handed couplings assuming no interference effects, the observed 95% confidence level limit is M(W′) > 2.05TeV. For W′ bosons with purely left handed couplings, including interference effects, the observed 95% confidence level limit is M(W′) > 1.84TeV. The results presented in this paper are the most stringent limits published to date.",

keywords = "Exotics, Hadron-Hadron Scattering",

author = "S. Chatrchyan and V. Khachatryan and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan 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 W. Kiesenhofer and V. Kn{\"u}nz and M. Krammer and I. Kr{\"a}tschmer and D. Liko and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and W. Treberer-Treberspurg and W. Waltenberger and Wulz, {C. E.} and V. Mossolov and N. Shumeiko and {Suarez Gonzalez}, J. and S. Alderweireldt and M. Bansal and S. Bansal and T. Cornelis and Dewolf, {E. A.} and X. Janssen and A. Knutsson and S. Luyckx and S. Ochesanu and R. Rougny and {Van De Klundert}, M. and {Van Haevermaet}, H. and {Van Mechelen}, P. and {Van Remortel}, N. and {Van Spilbeeck}, A. and A. Radi and {The CMS Collaboration}",

note = "Publisher Copyright: {\textcopyright} The Authors.",

year = "2014",

doi = "10.1007/JHEP05(2014)108",

language = "English",

volume = "2014",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - Dewolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Rougny, R.

AU - Van De Klundert, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Radi, A.

AU - The CMS Collaboration

PY - 2014

Y1 - 2014

N2 - Results are presented from a search for the production of a heavy gauge boson W′ decaying into a top and a bottom quark, using a data set collected by the CMS experiment at √s = 8TeV and corresponding to an integrated luminosity of 19.5 fb−1. Various models of W′-boson production are studied by allowing for an arbitrary combination of left-and right-handed couplings. The analysis is based on the detection of events with a lepton (e, μ), jets, and missing transverse energy in the final state. No evidence for W′-boson production is found and 95% confidence level upper limits on the production cross section times branching fraction are obtained. For W′ bosons with purely right-handed couplings, and for those with left-handed couplings assuming no interference effects, the observed 95% confidence level limit is M(W′) > 2.05TeV. For W′ bosons with purely left handed couplings, including interference effects, the observed 95% confidence level limit is M(W′) > 1.84TeV. The results presented in this paper are the most stringent limits published to date.

AB - Results are presented from a search for the production of a heavy gauge boson W′ decaying into a top and a bottom quark, using a data set collected by the CMS experiment at √s = 8TeV and corresponding to an integrated luminosity of 19.5 fb−1. Various models of W′-boson production are studied by allowing for an arbitrary combination of left-and right-handed couplings. The analysis is based on the detection of events with a lepton (e, μ), jets, and missing transverse energy in the final state. No evidence for W′-boson production is found and 95% confidence level upper limits on the production cross section times branching fraction are obtained. For W′ bosons with purely right-handed couplings, and for those with left-handed couplings assuming no interference effects, the observed 95% confidence level limit is M(W′) > 2.05TeV. For W′ bosons with purely left handed couplings, including interference effects, the observed 95% confidence level limit is M(W′) > 1.84TeV. The results presented in this paper are the most stringent limits published to date.

KW - Exotics

KW - Hadron-Hadron Scattering

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U2 - 10.1007/JHEP05(2014)108

DO - 10.1007/JHEP05(2014)108

M3 - Article

AN - SCOPUS:84930575196

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VL - 2014

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 108

ER -

Search for W′→tb decays in the lepton + jets final state in pp collisions at √s = 8TeV

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