[PDF] Top 20 Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at $ \sqrt{s}=8 $ TeV

... UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science ... See full document

... from the choice of the functional form of the background estimate are performed with alternative fit functions, with or without signal ...injection. The shapes obtained from background- only ... See full document

... on the sensitivity. In Figs. 1 and 2 the data and the extinction model are compared after any differences in the normalization have been ...resolved. In these ... See full document

... recently, the validity of the standard model (SM) of particle physics has been confirmed by the discovery of a Higgs boson with mass near 125 GeV by the ATLAS and ... See full document

... ED, the fundamental Planck scale can be comparable to the electroweak scale, which can make black hole production possible at the LHC ...than the Planck scale and decay into multijets ... See full document

... of the background events come from Drell–Yan (DY) production in association with ...points in estimating the background that require special ...taken in estimating the yield of Z ... See full document

... Proton-proton collisions producing large missing transverse momentum and a high transverse momentum photon have been investigated to search for new phenomena, using a data set cor- responding ... See full document

... being the product of all-hadronic top quark decays, rather than of other sources such as ISR or ...FSR. The BDT uses the invariant dijet and trijet masses, b tagging information, and the ... See full document

... A search has been performed in proton-proton collisions at √ s = 8 TeV for new particles de- caying via WZ to fully leptonic final states with electrons, ... See full document

... of the standard model (SM) predict new massive charged gauge bosons ...[1–3]. The W 0 boson, for example, is a heavy partner of the SM W gauge boson that could manifest itself in ... See full document

... distribution in the average mass of selected dijet pairs has been investigated for localized dis- agreements between the data and the background ...on the dijet pair. No signifi- ... See full document

... bH. The search is carried out in final states with one, two, and more than two charged leptons, as well as in fully hadronic final ...of the channels in the exclusive ... See full document

... appear in theories beyond the standard model (SM), such as grand unifica- tion [1–3], technicolor [4], and compositeness [5, 6] ...of the SM to include all renormalizable gauge ... See full document

... of the b-tagging algo- rithm have been measured in data and simulated events for jets [47] and subjets with a spatial separation between them of ΔR > .... The corresponding uncertainty is ... See full document

... by the Compact Muon Solenoid (CMS) experiment ...of the SM, for example those given in Refs. [6–8]. At the LHC, both the CMS and ATLAS collaborations have performed SUSY ... See full document

... colleagues in the CERN accelerator departments for the excellent perfor- mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS ... See full document

... taken at √ s = 8 TeV, we search for direct top squark pair production in both single-lepton and dilepton final ...states. In both searches the ... See full document

... determine the fraction of jets passing the electromagnetic trigger criteria that are misreconstructed as ...suppress the contribution from Z decays, events in this sample are required to have ... See full document

... GeV. The prior probability is chosen to be uniform and positive in the cross-section for the Z ′ limit calculation and 1/Λ 2 or 1/Λ 4 for the CI limit ...For the CI limit ... See full document

... of the SM that posits for each SM particle a new particle, called a superpartner, with a spin that differs from that of its SM counterpart by a half ...to the gauge hierarchy problem [25] that can help to ... See full document