Elektrik - Elektronik Mühendisliği Bölümü Koleksiyonu
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short-survey.listelement.badge Production of Electron-Positron Pairs by Nuclear Dissociation in Peripheral Heavy Ion Collisions(Elsevier, 2007) Güçlü, Mehmet Cem; Şengül, Metin; Şengül, Metin Y.The STAR Collaboration at the Relativistic Heavy Ion Collider present data on electron-positron pair production accompanied by nuclear breakup at small impact parameters where the simultaneous excitation of the two ions mainly the giant dipole resonance GDR can occur. We calculate the electron-positron pair production cross section relevant for the STAR experimental setup and compare our results with the other calculations. © 2007 Elsevier B.V. All rights reserved.Review Relativistic Antihydrogen Production by Pair Production With Positron Capture(Elsevier Science Bv, 2012) Şengül, Metin Y.; Şengül, Metin; Guclu, Mehmet C.Antihydrogen atoms may rarely be produced by the collision of antiprotons with ions. At relativistic velocities the antiproton may pass around the Coulomb field of the nucleus and the electron-positron pairs can be produced electromagnetically. After this pair production not so often positron can be captured by the antiproton and as a result antihydrogen atoms may be produced. In this work we have calculated the antihydrogen production cross section in the framework of perturbation theory by applying Monte-Carlo integration techniques. In order to compute the lowest-order Feynman diagrams amplitudes we used Darwin wave functions for the bound states of the positrons and Sommerfeld-Maue wave functions for the continuum states of the electrons. (C) 2012 Elsevier B.V. All rights reserved.Editorial Special Issue on Broadband Mobile Communications at Very High Speeds(Springer International Publishing Ag, 2012) Fan, Pingzhi; Panayırcı, Erdal; Panayırcı, Erdal; Poor, H. Vincent; Mathiopoulos, P. Takis[Abstract Not Available]Editorial Synchronization in Wireless Communications(Hindawi Publishing Corporation, 2009) Steendam, Heidi; Panayırcı, Erdal; Ghogho, Mounir; Luise, Marco; Panayırcı, Erdal; Serpedin, Erchin[Abstract Not Available]