scispace - formally typeset
A

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.

Papers
More filters
Journal ArticleDOI

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at $ \sqrt{s} $ = 13 TeV

Albert M. Sirunyan, +2357 more
- 01 Jun 2020 - 
TL;DR: In this article, the anomalous chromoelectric (d t) and chromomagnetic (μ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV.
Journal ArticleDOI

Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at sqrt[s_{NN}]=5.02  TeV.

Albert M. Sirunyan, +2232 more
- 19 Jan 2022 - 
TL;DR: The first evidence for X(3872) production in relativistic heavy ion collisions is reported in this article , where the decay chain X( 3872)→J/ψππ+π^{+}π^{-}→μπ+}μ^{-})π++π+})+π''π''-1.
Journal ArticleDOI

Search for a low-mass τ−τ+ resonance in association with a bottom quark in proton-proton collisions at s√ = 13 TeV

Albert M. Sirunyan, +2336 more
- 25 Mar 2019 - 
TL;DR: In this paper, a general search is presented for a low-mass τ−τ+ resonance produced in association with a bottom quark, based on proton-proton collision data at a center-of-mass energy of 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb−1.
Journal ArticleDOI

Comparison of the Z/γ ∗ + jets to γ + jets cross sections in pp collisions at √s= 8 TeV

Vardan Khachatryan, +2287 more
- 20 Oct 2015 - 
TL;DR: In this paper, a comparison of the differential cross sections for the processes Z/gamma* + jets and photon (gamma) + jets is presented based on data collected with the CMS detector at sqrt(s) = 8 TeV corresponding to an integrated luminosity of 19.7 inverse femtobarns.
Journal ArticleDOI

Measurement of the associated production of a Z boson with charm or bottom quark jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Albert M. Sirunyan, +2293 more
- 19 Aug 2020 - 
TL;DR: The first measurements of the cross section ratios at 13-TeV were made in this article, where a Z boson with at least one charm or bottom quark jet was measured in proton-proton collisions at s=13TeV.