Measurement of the underlying event activity using charged-particle jets in proton-proton collisions at √s=2.76 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105378

Title:	Measurement of the underlying event activity using charged-particle jets in proton-proton collisions at √s=2.76 TeV
Authors:	林宗泰;Alderweireldt, S.;Van De Klundert, M.;Moreels, L.;Caillol, C.;Clerbaux, B.;Perniè, L.;Reis, T.;Benucci, L.;Gul, M.;De Jesus Damiao, D.;Mundim, L.;Aleksandrov, A.;Ahmad, M.;Ganjour, S.;Titov, M.;Zghiche, A.;Strebler, T.;Conte, E.;Beranek, S.;Ostapchuk, A.;Endres, M.;Esch, T.;Fischer, R.;Hempel, M.;Mankel, R.;Ntomari, E.;Centis Vignali, M.;Schmidt, A.;Tholen, H.;Colombo, F.;Descroix, A.;Markou, A.;Topsis-Giotis, I.;Kokkas, P.;Hidas, P.;Malhotra, S.;Dey, S.;Chatterjee, R. M.;Gurtu, A.;Khakzad, M.;Zeinali, M.;Felcini, M.;Grunewald, M.;Benvenuti, A. C.;Braibant-Giacomelli, S.;Guiducci, L.;Rossi, A. M.;Tabarelli de Fatis, T.;Meneguzzo, A. T.;Jorda, C.;Micheli, F.;Lokhtin, I.;Myagkov, I.;Bitioukov, S.;Ryutin, R.;Uzunian, A.;Benitez, J. F.;Morovic, S.;Sakulin, H.;Silva, P.;Horisberger, R.;Buchmann, M. A.;Kasieczka, G.;Marionneau, M.;Wallny, R.;De Cosa, A.;Cerci, S.;Topakli, H.;Albayrak, E. A.;Clement, E.;Heath, G. P.;Nikitenko, A.;Leslie, D.;Richardson, C.;Lander, R.;Cousins, R.;Ignatenko, M.;Clare, R.;Wasserbaech, S.;Richman, J.;Apresyan, A.;Spiropulu, M.;Mason, D.;Sexton-Kennedy, E.;Sperka, D.;Zakaria, M.;Dilsiz, K.;Mestvirishvili, A.;Feng, L.;Baron, O.;Velicanu, D.;Alverson, G.;Mucia, N.;Brinkerhoff, A.;Planer, M.;Palmer, C.;Demortier, L.;Delannoy, A. G.;Perry, T.;Woods, N.
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:	2015-09-29
Issue Date:	2026-04-23 12:21:34 (UTC+8)
Publisher:	Berlin/Heidelberg: Springer Berlin Heidelberg
Abstract:	摘要： A bstract A measurement of the underlying event (UE) activity in proton-proton collisions is performed using events with charged-particle jets produced in the central pseudorapidity region (\| η jet \| < 2) and with transverse momentum 1 ≤ p T jet < 100 GeV. The analysis uses a data sample collected at a centre-of-mass energy of 2.76 TeV with the CMS experiment at the LHC. The UE activity is measured as a function of p T jet in terms of the average multiplicity and scalar sum of transverse momenta ( p T ) of charged particles, with \| η \| < 2 and p T > 0.5 GeV, in the azimuthal region transverse to the highest p T jet direction. By further dividing the transverse region into two regions of smaller and larger activity, various components of the UE activity are separated. The measurements are compared to previous results at 0.9 and 7 TeV, and to predictions of several Monte Carlo event generators, providing constraints on the modelling of the UE dynamics. 其他題名： J. High Energ. Phys 出版者： Berlin/Heidelberg: Springer Berlin Heidelberg 出版日期： 2015-09-21 出處： The journal of high energy physics, 2015-09, Vol.2015 (9) 資源來源： Publicly Available Content Database 版權： The Author(s) 2015 識別號： EISSN: 1029-8479 識別號： DOI: 10.1007/JHEP09(2015)137
Appears in Collections:	[Department of Physics] journal & Dissertation

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