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Title: Measurement of KS0 and ? production in tt¯ dileptonic events in pp collisions at ?s= 7 TeV with the ATLAS detector
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Collisions
proton–proton collisions
Issue Date: Dec-2019
Publisher: Springer
Source: ATLAS collaboration. (2019). Measurement of KS0 and ? production in tt¯ dileptonic events in pp collisions at ?s= 7 TeV with the ATLAS detector. European Physical Journal C, 79(12).
Abstract: Measurements of K0 S and 0 production in tt ¯ final states have been performed. They are based on a data sample with integrated luminosity of 4.6 fb−1 from proton– proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the ATLAS detector at the Large Hadron Collider. Neutral strange particles are separated into three classes, depending on whether they are contained in a jet, with or without a b-tag, or not associated with a selected jet. The aim is to look for differences in their main kinematic distributions. A comparison of data with several Monte Carlo simulations using different hadronisation and fragmentation schemes, colour reconnection models and different tunes for the underlying event has been made. The production of neutral strange particles in tt ¯ dileptonic events is found to be well described by current Monte Carlo models for K0 S and 0 production within jets, but not for those produced outside jets.
ISSN: 14346044
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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