Search for resonant t t ¯ production in proton-proton collisions at √s=13 TeV

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Search for resonant t t ¯ production in proton-proton collisions at √s=13 TeV. / The CMS collaboration ; Блинов, Владимир Евгеньевич ; Сковпень, Юрий Иванович.

In: Journal of High Energy Physics, Vol. 2019, No. 4, 31, 01.04.2019.

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

BibTeX

@article{27e3a7d1a32f468b92ff131d35b880e7,

title = "Search for resonant t t ¯ production in proton-proton collisions at √s=13 TeV",

abstract = " A search for a heavy resonance decaying into a top quark and antiquark (t t ¯) pair is performed using proton-proton collisions at s=13 TeV. The search uses the data set collected with the CMS detector in 2016, which corresponds to an integrated luminosity of 35.9 fb −1 . The analysis considers three exclusive final states and uses reconstruction techniques that are optimized for top quarks with high Lorentz boosts, which requires the use of nonisolated leptons and jet substructure techniques. No significant excess of events relative to the expected yield from standard model processes is observed. Upper limits on the production cross section of heavy resonances decaying to a t t ¯ pair are calculated. Limits are derived for a leptophobic topcolor Z ′ resonance with widths of 1, 10, and 30%, relative to the mass of the resonance, and exclude masses up to 3.80, 5.25, and 6.65 TeV, respectively. Kaluza-Klein excitations of the gluon in the Randall-Sundrum model are excluded up to 4.55 TeV. To date, these are the most stringent limits on t t ¯ resonances. ",

keywords = "Beyond Standard Model, Hadron-Hadron scattering (experiments), TOP-PAIR, DECAY, TOPCOLOR, HIERARCHY, PLUS",

author = "{The CMS collaboration} and Sirunyan, {A. M.} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and M. Dragicevic and J. Er{\"o} and {Escalante Del Valle}, A. and M. Flechl and R. Fr{\"u}hwirth and Ghete, {V. M.} and J. Hrubec and M. Jeitler and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, {C. E.} and M. Zarucki and V. Chekhovsky and V. Mossolov and {Suarez Gonzalez}, J. and {De Wolf}, {E. A.} and {Di Croce}, D. and X. Janssen and J. Lauwers and M. Pieters and {Van Haevermaet}, H. and {Van Mechelen}, P. and {Van Remortel}, N. and {Abu Zeid}, S. and F. Blekman and J. D{\textquoteright}Hondt and {De Bruyn}, I. and {De Clercq}, J. and A. Barnyakov and T. Dimova and L. Kardapoltsev and Блинов, {Владимир Евгеньевич} and Сковпень, {Юрий Иванович}",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = apr,

day = "1",

doi = "10.1007/JHEP04(2019)031",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer US",

number = "4",

}

RIS

TY - JOUR

T1 - Search for resonant t t ¯ production in proton-proton collisions at √s=13 TeV

AU - The CMS collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - Pieters, M.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Abu Zeid, S.

AU - Blekman, F.

AU - D’Hondt, J.

AU - De Bruyn, I.

AU - De Clercq, J.

AU - Barnyakov, A.

AU - Dimova, T.

AU - Kardapoltsev, L.

AU - Блинов, Владимир Евгеньевич

AU - Сковпень, Юрий Иванович

PY - 2019/4/1

Y1 - 2019/4/1

N2 - A search for a heavy resonance decaying into a top quark and antiquark (t t ¯) pair is performed using proton-proton collisions at s=13 TeV. The search uses the data set collected with the CMS detector in 2016, which corresponds to an integrated luminosity of 35.9 fb −1 . The analysis considers three exclusive final states and uses reconstruction techniques that are optimized for top quarks with high Lorentz boosts, which requires the use of nonisolated leptons and jet substructure techniques. No significant excess of events relative to the expected yield from standard model processes is observed. Upper limits on the production cross section of heavy resonances decaying to a t t ¯ pair are calculated. Limits are derived for a leptophobic topcolor Z ′ resonance with widths of 1, 10, and 30%, relative to the mass of the resonance, and exclude masses up to 3.80, 5.25, and 6.65 TeV, respectively. Kaluza-Klein excitations of the gluon in the Randall-Sundrum model are excluded up to 4.55 TeV. To date, these are the most stringent limits on t t ¯ resonances.

AB - A search for a heavy resonance decaying into a top quark and antiquark (t t ¯) pair is performed using proton-proton collisions at s=13 TeV. The search uses the data set collected with the CMS detector in 2016, which corresponds to an integrated luminosity of 35.9 fb −1 . The analysis considers three exclusive final states and uses reconstruction techniques that are optimized for top quarks with high Lorentz boosts, which requires the use of nonisolated leptons and jet substructure techniques. No significant excess of events relative to the expected yield from standard model processes is observed. Upper limits on the production cross section of heavy resonances decaying to a t t ¯ pair are calculated. Limits are derived for a leptophobic topcolor Z ′ resonance with widths of 1, 10, and 30%, relative to the mass of the resonance, and exclude masses up to 3.80, 5.25, and 6.65 TeV, respectively. Kaluza-Klein excitations of the gluon in the Randall-Sundrum model are excluded up to 4.55 TeV. To date, these are the most stringent limits on t t ¯ resonances.

KW - Beyond Standard Model

KW - Hadron-Hadron scattering (experiments)

KW - TOP-PAIR

KW - DECAY

KW - TOPCOLOR

KW - HIERARCHY

KW - PLUS

UR - http://www.scopus.com/inward/record.url?scp=85063983099&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2019)031

DO - 10.1007/JHEP04(2019)031

M3 - Article

AN - SCOPUS:85063983099

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 4

M1 - 31

ER -

ID: 19317032