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Achim Geiser

Researcher at University of Hamburg

Publications -  1474
Citations -  93498

Achim Geiser is an academic researcher from University of Hamburg. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 129, co-authored 1331 publications receiving 84136 citations. Previous affiliations of Achim Geiser include RWTH Aachen University & Technical University of Dortmund.

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Journal ArticleDOI

Springer : Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at $\sqrt{s}=13 $ TeV

Albert M. Sirunyan, +2299 more
- 05 Apr 2018 - 
Journal ArticleDOI

Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets

Vardan Khachatryan, +2123 more
- 02 Feb 2015 - 
TL;DR: Bounds on the structure of quartic vector-boson interactions are given in the framework of dimension-eight effective field theory operators, as well as limits on the production of doubly charged Higgs bosons.
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Search for pair-produced resonances decaying to jet pairs in proton–proton collisions at s=8 TeV

Vardan Khachatryan, +2131 more
- 30 Jul 2015 - 
TL;DR: In this paper, a general search for pair production of heavy resonances decaying to pairs of jets in events with at least four jets is reported, based on up to 19.4 inverse femtobarns of integrated luminosity from proton-proton collisions at a center-of-mass energy of 8 TeV.
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Measurement of the t-channel single top quark production cross section in pp collisions at √s = 7TeV

S. Chatrchyan, +2239 more
- 25 Aug 2011 - 
TL;DR: In this article, the authors measured electroweak production of the top quark in pp collisions at 7 TeV, using a dataset collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 inverse picobarns.
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Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV

Vardan Khachatryan, +2199 more
- 01 May 2011 - 
TL;DR: In this article, the spectra of hadrons were measured in proton-proton collisions, recorded by the CMS experiment at the CERN LHC, at centre-of-mass energies of 0.9 and 7 TeV.