Search for new physics with the M T2 variable in all-jets final states produced in pp collisions at √s=13 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106760

Title:	Search for new physics with the M T2 variable in all-jets final states produced in pp collisions at √s=13 TeV
Authors:	林宗泰;Cornelis, T.;De Wolf, E. A.;Poyraz, D.;Zaganidis, N.;Magitteri, A.;Piotrzkowski, K.;Romeo, F.;Razis, P. A.;Finger, M.;Salama, E.;Pekkanen, J.;Tuominiemi, J.;Merlin, J. A.;Fay, J.;Khvedelidze, A.;Güth, A.;Padeken, K.;Costanza, F.;Lohmann, W.;Meyer, A. B.;Dreyer, T.;Williamson, S.;Anagnostou, G.;Agapitos, A.;Szillasi, Z.;Chawla, R.;Behera, P. K.;Kumar, V.;Pant, L. M.;Topkar, A.;Mahakud, B.;Sur, N.;Sutar, B.;Chauhan, S.;Abbrescia, M.;Tuve, C.;Barbagli, G.;De Nardo, G.;Pozzobon, N.;Ronchese, P.;Saha, A.;Margaroli, F.;Amapane, N.;Casimiro Linares, E.;Hassan, Q.;Bialkowska, H.;Faccioli, P.;Perelygin, V.;Snigirev, A.;Troshin, S.;Soares, M. S.;Scodellaro, L.;Bocci, A.;Botta, C.;Di Marco, E.;Dorney, B.;Meschi, E.;Ruan, M.;Schäfer, C.;Kaestli, H. C.;Musella, P.;Chiochia, V.;Chen, K. F.;Reid, I. D.;Laird, E.;Mao, Z.;Calderon De La Barca Sanchez, M.;Pilot, J.;Sani, M.;Geffert, P.;Zhu, R. Y.;Jensen, F.;Alexander, J.;Joshi, U.;Carver, M.;Diamond, B.;Hagopian, V.;Colafranceschi, S.;Dilsiz, K.;Feng, L.;Sarica, U.;Kropivnitskaya, A.;Tapia Takaki, J. D.;Saini, L. K.;Skuja, A.;Gomez Ceballos, G.;Gulhan, D.;Bloom, K.;Stieger, B.;Alyari, M.;Chasco, M.;Orimoto, T.;Kellams, N.;Liu, B.;Luo, J.;Garcia-Bellido, A.;Akchurin, N.;Ni, H.;Levine, A.;Ruggles, T.
Contributors:	理學院物理學系
Keywords:	Classical and Quantum Gravitation;Elementary Particles;Physics;Physics and Astronomy;Quantum Field Theories;Quantum Field Theory;Quantum Physics;Regular Article - Experimental Physics;Relativity Theory;String Theory
Date:	2016-10-01
Issue Date:	2026-04-23 13:41:33 (UTC+8)
Publisher:	Berlin/Heidelberg: Springer Berlin Heidelberg
Abstract:	摘要： A bstract A search for new physics is performed using events that contain one or more jets, no isolated leptons, and a large transverse momentum imbalance, as measured through the M T2 variable, which is an extension of the transverse mass in events with two invisible particles. The results are based on a sample of proton-proton collisions collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, and that corresponds to an integrated luminosity of 2.3 fb −1 . The observed event yields in the data are consistent with predictions for the standard model backgrounds. The results are interpreted using simplified models of supersymmetry and are expressed in terms of limits on the masses of potential new colored particles. Assuming that the lightest neutralino is stable and has a mass less than about 500 GeV, gluino masses up to 1550-1750 GeV are excluded at 95% confidence level, depending on the gluino decay mechanism. For the scenario of direct production of squark-antisquark pairs, top squarks with masses up to 800 GeV are excluded, assuming a 100% branching fraction for the decay to a top quark and neutralino. Similarly, bottom squark masses are excluded up to 880 GeV, and masses of light-flavor squarks are excluded up to 600-1260 GeV, depending on the degree of degeneracy of the squark masses. 其他題名： J. High Energ. Phys 出版者： Berlin/Heidelberg: Springer Berlin Heidelberg 出版日期： 2016-10-03 出處： The journal of high energy physics, 2016-10, Vol.2016 (10) 資源來源： Publicly Available Content Database (ProQuest) 版權： The Author(s) 2016 識別號： EISSN: 1029-8479 識別號： DOI: 10.1007/JHEP10(2016)006
Appears in Collections:	[Department of Physics] journal & Dissertation

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