Research output: Contribution to journal › Article › peer-review
Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at √s = 13 TeV. / The CMS collaboration.
In: Journal of High Energy Physics, Vol. 2021, No. 11, 153, 11.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at √s = 13 TeV
AU - The CMS collaboration
AU - Tumasyan, A.
AU - Adam, W.
AU - Andrejkovic, J. W.
AU - Bergauer, T.
AU - Chatterjee, S.
AU - Dragicevic, M.
AU - Escalante Del Valle, A.
AU - Frühwirth, R.
AU - Jeitler, M.
AU - Krammer, N.
AU - Lechner, L.
AU - Liko, D.
AU - Mikulec, I.
AU - Paulitsch, P.
AU - Pitters, F. M.
AU - Schieck, J.
AU - Schöfbeck, R.
AU - Schwarz, D.
AU - Templ, S.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Chekhovsky, V.
AU - Litomin, A.
AU - Makarenko, V.
AU - Darwish, M. R.
AU - De Wolf, E. A.
AU - Janssen, T.
AU - Kello, T.
AU - Lelek, A.
AU - Rejeb Sfar, H.
AU - Van Mechelen, P.
AU - Van Putte, S.
AU - Van Remortel, N.
AU - Blekman, F.
AU - Bols, E. S.
AU - D’Hondt, J.
AU - Delcourt, M.
AU - El Faham, H.
AU - Lowette, S.
AU - Moortgat, S.
AU - Morton, A.
AU - Müller, D.
AU - Sahasransu, A. R.
AU - Tavernier, S.
AU - Blinov, V.
AU - Dimova, T.
AU - Kardapoltsev, L.
AU - Kozyrev, A.
AU - Ovtin, I.
AU - Skovpen, Y.
N1 - Funding Information: This research was supported by the Director, Office of Energy Research, Office of Basic Sciences, U. S. Department of Energy, under Contract No. DE-AC03-76SF00098. Publisher Copyright: © 2021, The Author(s).
PY - 2021/11
Y1 - 2021/11
N2 - A search is presented for new particles produced at the LHC in proton-proton collisions at s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb−1, collected in 2017–2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb−1, collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.
AB - A search is presented for new particles produced at the LHC in proton-proton collisions at s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb−1, collected in 2017–2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb−1, collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.
KW - Beyond Standard Model
KW - Dark matter
KW - Hadron-Hadron scattering (experiments)
KW - Higgs physics
UR - http://www.scopus.com/inward/record.url?scp=85119894636&partnerID=8YFLogxK
U2 - 10.1007/JHEP11(2021)153
DO - 10.1007/JHEP11(2021)153
M3 - Article
AN - SCOPUS:85119894636
VL - 2021
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 11
M1 - 153
ER -
ID: 34866729