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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 pair production of second-generation leptoquarks at √s = 13 TeV

Albert M. Sirunyan, +2291 more
- 01 Feb 2019 - 
TL;DR: In this paper, a search for pair production of second-generation leptoquarks is performed using proton-proton collision data collected at the CERN LHC, corresponding to an integrated luminosity of 35.9
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Measurement of the CP-violating weak phase phi(s) and the decay width difference Delta Gamma(s) using the B-s(0) -> J/psi phi (1020) decay channel in pp collisions at root s=8 TeV

Vardan Khachatryan, +2365 more
- 10 Jun 2016 - 
TL;DR: In this paper, the CP-violating weak phase ϕ_s of the B^0_s meson and the decay width difference ΔΓ_s were measured with the CMS detector at the LHC using a data sample of B^ 0_s → J/ψφ(1020) → µ+µ^-K^+K^- decays.
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Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos, and b quarks

Vardan Khachatryan, +2298 more
- 10 May 2017 - 
TL;DR: The authors of as mentioned in this paper acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MOST, and NSFC (China); COLCIEN-CIAS (Colombia); MSES and CSF (Croatia); RPF (
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Search for associated production of a Z boson with a single top quark and for tZ flavour-changing interactions in pp collisions at s√=8 TeV

Albert M. Sirunyan, +2326 more
- 03 Jul 2017 - 
TL;DR: In this article, a search for the production of a single top quark in association with a Z boson is presented, both to identify the expected standard model process and to search for flavour-changing neutral current interactions.
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Measurement of isolated photon production in deep inelastic ep scattering

Sergei Chekanov, +322 more
- 05 Apr 2010 - 
TL;DR: Isolated photon production in deep inelastic ep scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 320 pb(-1) as discussed by the authors.