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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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Measurement of high- Q 2 deep inelastic scattering cross sections with a longitudinally polarised positron beam at HERA

Sergei Chekanov, +317 more
- 15 Jun 2006 - 
TL;DR: In this article, the cross sections for charged and neutral current deep inelastic scattering in e + p collisions with a longitudinally polarised positron beam have been measured using the ZEUS detector at HERA.
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Probing the strange content of the proton with charm production in charged current at LHeC

TL;DR: In this paper, the authors examined the current PDF uncertainty and used LHeC pseudodata to estimate the potential improvement from this proposed facility, and found that the high-statistics LHEC data covering a wide kinematic range could substantially reduce the strange-quark parton distribution function.
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Pseudo-Dirac neutrinos as a potential complete solution to the neutrino oscillation puzzle

Achim Geiser
- 24 Dec 1998 - 
TL;DR: In this paper, a solution for the neutrino mass and mixing pattern is proposed which is compatible with all available experimental data on neutrinos oscillations, and the resulting constraints on ν μ − ντ and ν τ − ǫ S oscillations are also discussed.
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Measurements of tt‾ charge asymmetry using dilepton final states in pp collisions at s=8TeV

Vardan Khachatryan, +2393 more
- 10 Sep 2016 - 
TL;DR: In this paper, the authors measured the charge asymmetry in tt events using dilepton final states produced in pp collisions at the LHC at √s = 8 TeV.
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Search for resonances in the mass spectrum of muon pairs produced in association with b quark jets in proton-proton collisions at √s=8 and 13 TeV

Albert M. Sirunyan, +2362 more
TL;DR: In this article, a search for resonances in the mass range 12-70 GeV produced in association with a b quark jet and a second jet, and decaying to a muon pair, is reported.