Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7148

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  • Article
    Citation - WoS: 136
    Citation - Scopus: 210
    Performance of missing transverse momentum reconstruction in proton-proton collisions at √s = 13 TeV using the CMS detector
    (Institute of Physics Publishing, 2019) CMS Collaboration; Karapınar, Güler
    The performance of missing transverse momentum ( ® pmiss T ) reconstruction algorithms for the CMS experiment is presented, using proton-proton collisions at a center-of-mass energy of 13 TeV, collected at the CERN LHC in 2016. The data sample corresponds to an integrated luminosity of 35.9 fb1. The results include measurements of the scale and resolution of ® pmiss T, and detailed studies of events identified with anomalous ® pmiss T . The performance is presented of a ® pmiss T reconstruction algorithm that mitigates the effects of multiple proton-proton interactions, using the "pileup per particle identification" method. The performance is shown of an algorithm used to estimate the compatibility of the reconstructed ® pmiss T with the hypothesis that it originates from resolution effects. © 2019 CERN for the benefit of the CMS collaboration.
  • Article
    Citation - WoS: 16
    Citation - Scopus: 15
    On Scattering From the One-Dimensional Multiple Dirac Delta Potentials
    (Institute of Physics Publishing, 2018) Erman, Fatih; Gadella, Manuel; Uncu, Haydar
    In this paper, we propose a pedagogical presentation of the Lippmann-Schwinger equation as a powerful tool, so as to obtain important scattering information. In particular, we consider a one-dimensional system with a Schrödinger-type free Hamiltonian decorated with a sequence of N attractive Dirac delta interactions. We first write the Lippmann-Schwinger equation for the system and then solve it explicitly in terms of an N × N matrix. Then, we discuss the reflection and the transmission coefficients for an arbitrary number of centres and study the threshold anomaly for the N = 2 and N = 4 cases. We also study further features like the quantum metastable states and resonances, including their corresponding Gamow functions and virtual or antibound states. The use of the Lippmann-Schwinger equation simplifies our analysis enormously and gives exact results for an arbitrary number of Dirac delta potentials.