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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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Nuclear effects on the transverse momentum spectra of charged particles in pPb collisions at √sNN = 5.02 TeV

Vardan Khachatryan, +2110 more
TL;DR: In this paper, the transverse momentum spectra of charged particles are measured by the CMS experiment at the CERN LHC in pPb collisions at 5.02 TeV, in the range 0.4 20 GeV compared to expectations from the pp reference.
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A precise measurement of the muon neutrino-nucleon inclusive charged current cross section off an isoscalar target in the energy range 2.5 < Eν < 40 GeV by NOMAD

Q. Wu, +173 more
- 14 Feb 2008 - 
TL;DR: In this paper, the muon neutrino-nucleon inclusive charged current cross section was measured off an isoscalar target, in the neutrinos energy range 2.5⩽ E ν ⩽ 40 GeV.
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Measurement of the differential dijet production cross section in proton-proton collisions at √s=7 TeV

S. Chatrchyan, +2157 more
- 13 Jun 2011 - 
TL;DR: In this paper, a measurement of the double-differential inclusive dijet production cross section in proton-proton collisions at squarert(s)=7 TeV is presented as a function of the dijet invariant mass and jet rapidity.
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Search for Pair Production of Third-Generation Leptoquarks and Top Squarks in pp Collisions at √s=7 TeV

S. Chatrchyan, +2184 more
TL;DR: In this paper, a search for the pair production of third-generation scalar and vector leptoquarks, as well as for top squarks in R-parity-violating supersymmetric models is presented.
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Measurements of jet multiplicity and differential production cross sections of Z+jets events in proton-proton collisions at s =7TeV

Vardan Khachatryan, +2128 more
- 11 Mar 2015 - 
TL;DR: In this paper, the authors present measurements of differential cross sections for the production of a Z boson and at least one hadronic jet in proton-proton collisions at √s=7 TeV, recorded by the CMS detector, using a data sample corresponding to an integrated luminosity of 4.9