Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Search for black holes and sphalerons in high-multiplicity final states in proton-proton collisions at √s=13 TeV. / The CMS collaboration.
в: Journal of High Energy Physics, Том 2018, № 11, 42, 01.11.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Search for black holes and sphalerons in high-multiplicity final states 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 De Klundert, M.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Remortel, N.
AU - Abu Zeid, S.
AU - Blekman, F.
AU - Blinov, V.
AU - Dimova, T.
AU - Kardapoltsev, L.
AU - Shtol, D.
AU - Skovpen, Y.
N1 - Publisher Copyright: © 2018, The Author(s).
PY - 2018/11/1
Y1 - 2018/11/1
N2 - A search in energetic, high-multiplicity final states for evidence of physics beyond the standard model, such as black holes, string balls, and electroweak sphalerons, is presented. The data sample corresponds to an integrated luminosity of 35.9 fb−1 collected with the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV in 2016. Standard model backgrounds, dominated by multijet production, are determined from control regions in data without any reliance on simulation. No evidence for excesses above the predicted background is observed. Model-independent 95% confidence level upper limits on the cross section of beyond the standard model signals in these final states are set and further interpreted in terms of limits on semiclassical black hole, string ball, and sphaleron production. In the context of models with large extra dimensions, semiclassical black holes with minimum masses as high as 10.1 TeV and string balls with masses as high as 9.5 TeV are excluded by this search. Results of the first dedicated search for electroweak sphalerons are presented. An upper limit of 0.021 is set at 95% confidence level on the fraction of all quark-quark interactions above the nominal threshold energy of 9 TeV resulting in the sphaleron transition.
AB - A search in energetic, high-multiplicity final states for evidence of physics beyond the standard model, such as black holes, string balls, and electroweak sphalerons, is presented. The data sample corresponds to an integrated luminosity of 35.9 fb−1 collected with the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV in 2016. Standard model backgrounds, dominated by multijet production, are determined from control regions in data without any reliance on simulation. No evidence for excesses above the predicted background is observed. Model-independent 95% confidence level upper limits on the cross section of beyond the standard model signals in these final states are set and further interpreted in terms of limits on semiclassical black hole, string ball, and sphaleron production. In the context of models with large extra dimensions, semiclassical black holes with minimum masses as high as 10.1 TeV and string balls with masses as high as 9.5 TeV are excluded by this search. Results of the first dedicated search for electroweak sphalerons are presented. An upper limit of 0.021 is set at 95% confidence level on the fraction of all quark-quark interactions above the nominal threshold energy of 9 TeV resulting in the sphaleron transition.
KW - Beyond Standard Model
KW - Hadron-Hadron scattering (experiments)
KW - ATLAS DETECTOR
KW - DIMENSIONS
KW - LEPTONS
KW - PARTON DISTRIBUTIONS
KW - SUPERSYMMETRY
KW - SCALE GRAVITY SIGNATURES
KW - PHENOMENOLOGY
KW - MASS
KW - JETS
KW - MODEL
UR - http://www.scopus.com/inward/record.url?scp=85056647097&partnerID=8YFLogxK
U2 - 10.1007/JHEP11(2018)042
DO - 10.1007/JHEP11(2018)042
M3 - Article
AN - SCOPUS:85056647097
VL - 2018
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 11
M1 - 42
ER -
ID: 17457987