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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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Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions

Vardan Khachatryan, +2189 more
- 14 Aug 2014 - 
TL;DR: A search for neutral Higgs bosons in the minimal supersymmetric extension of the standard model (MSSM) decaying to tau-lepton pairs in pp collisions is performed, using events recorded by the CMS experiment at the LHC.
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Search for supersymmetry in hadronic final states with missing transverse energy using the variables αT and b-quark multiplicity in pp collisions at √s = 8 TeV

S. Chatrchyan, +3883 more
- 12 Mar 2013 - 
TL;DR: In this paper, an inclusive search for supersymmetric processes that produce final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of 8 TeV.
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Search for the associated production of the Higgs boson with a top-quark pair

Vardan Khachatryan, +2197 more
- 16 Sep 2014 - 
TL;DR: In this article, a search for the standard model Higgs boson produced in association with a top-quark pair (ttH) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb^(−1) and 19.7 fb+1, collected in pp collisions at center of mass energies of 7 TeV and 8 TeV respectively.
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Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA

Halina Abramowicz, +489 more
- 20 Feb 2013 - 
TL;DR: In this article, the effect of different heavy flavour schemes on the parton distribution functions was investigated. And the running mass of the charm quark was determined using the fixed flavour number scheme.
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Measurement of D ± and D 0 production in deep inelastic scattering using a lifetime tag at HERA

Sergei Chekanov, +325 more
- 11 Aug 2009 - 
TL;DR: In this article, the production of D-+/-- and D-0-mesons has been measured with the ZEUS detector at HERA using an integrated luminosity of 133.6 pb(-1).