Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton–proton collisions at s=8 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106944

Title:	Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton–proton collisions at s=8 TeV
Authors:	余欣珊;Sirunyan, A.M.;Alderweireldt, S.;Van Onsem, G.P.;Zenoni, F.;Pagano, D.;De Jesus Damiao, D.;Chen, H.S.;Plestina, R.;Sanabria, J.C.;Kovac, M.;Fedi, G.;Lassila-Perini, K.;Besancon, M.;Fabbro, B.;Sirois, Y.;Conte, E.;Sordini, V.;Cherepanov, V.;Melzer-Pellmann, I.-A.;Wissing, C.;Erfle, J.;Anagnostou, G.;Szillasi, Z.;Raics, P.;Bhatnagar, V.;Kalsi, A.K.;Kumar, R.;Rezaei Hosseinabadi, F.;Maggi, G.;Benvenuti, A.C.;Guiducci, L.;Marcellini, S.;Montanari, A.;Tricomi, A.;Fabbri, F.;Piccolo, D.;Gennai, S.;Lucchini, M.T.;Ronchese, P.;Gabusi, M.;Ratti, S.P.;Venturi, A.;Micheli, F.;Traczyk, P.;Arcidiacono, R.;Biino, C.;Casasso, S.;Maselli, S.;Monaco, V.;Musich, M.;Gyun, D.;Choi, Y.;Rodrigues Antunes, J.;Varela, J.;Shulha, S.;Bitioukov, S.;Pérez-Calero Yzquierdo, A.;Gomez, G.;Scodellaro, L.;Dobson, M.;Quittnat, M.;Akin, I.V.;Isildak, B.;Kreczko, L.;Lucas, C.;Harper, S.;Olaiya, E.;Cripps, N.;Fulcher, J.;Futyan, D.;Rogerson, S.;Fantasia, C.;Conway, J.;Lander, R.;Ignatenko, M.;Ivova Rikova, M.;Bradmiller-Feld, J.;Golf, F.;To, W.;Paulini, M.;Vogel, H.;Ford, W.T.;Wagner, S.R.;Nicolas Kaufman, G.;Salvati, E.;Yang, F.;Furic, I.K.;Cavanaugh, R.;Ivanov, A.;Saini, L.K.;Oliveros, S.;Gonzalez Suarez, R.;Hahn, K.A.;Pearson, T.;Winer, B.L.;Tully, C.;Park, M.;Harr, R.;Hervé, A.;Smith, W.H.
Contributors:	理學院物理學系
Keywords:	CMS;Contact interactions;Electroweak corrections;Extra dimensions;Physics;PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;QCD
Date:	2015-06-30
Issue Date:	2026-04-23 13:50:03 (UTC+8)
Publisher:	Netherlands: Elsevier B.V
Abstract:	摘要： A search is presented for quark contact interactions and extra spatial dimensions in proton–proton collisions at s=8 TeV using dijet angular distributions. The search is based on a data set corresponding to an integrated luminosity of 19.7 fb−1 collected by the CMS detector at the CERN LHC. Dijet angular distributions are found to be in agreement with the perturbative QCD predictions that include electroweak corrections. Limits on the contact interaction scale from a variety of models at next-to-leading order in QCD corrections are obtained. A benchmark model in which only left-handed quarks participate is excluded up to a scale of 9.0 (11.7) TeV for destructive (constructive) interference at 95% confidence level. Lower limits between 5.9 and 8.4 TeV on the scale of virtual graviton exchange are extracted for the Arkani-Hamed–Dimopoulos–Dvali model of extra spatial dimensions. 出版者： Netherlands: Elsevier B.V 出版日期： 2015-06-30 出處： Physics letters. B, 2015-06, Vol.746 (C), p.79-99 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2015 CERN for the benefit of the CMS Collaboration 識別號： ISSN: 0370-2693 識別號： EISSN: 1873-2445 識別號： DOI: 10.1016/j.physletb.2015.04.042
Appears in Collections:	[Department of Physics] journal & Dissertation

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