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Josef Hammer

Researcher at CERN

Publications -  637
Citations -  64338

Josef Hammer is an academic researcher from CERN. The author has contributed to research in topics: Large Hadron Collider & Standard Model. The author has an hindex of 120, co-authored 631 publications receiving 60840 citations. Previous affiliations of Josef Hammer include École Polytechnique & Austrian Academy of Sciences.

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Measurement of the tt¯ production cross section in the τ+jets channel in pp collisions at s√=7 TeV

S. Chatrchyan, +3917 more
- 01 Apr 2013 - 
TL;DR: In this article, the top-quark pair production cross section in 7 TeV center-of-mass energy proton-proton collisions is measured using data collected by the CMS detector at the LHC.
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Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV

Vardan Khachatryan, +2138 more
- 18 May 2015 - 
TL;DR: In this paper, five mutually exclusive searches for supersymmetry are presented based on events in which b jets and four W bosons are produced in proton-proton collisions at sqrt(s) = 8 TeV.
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Search forBs0→μ+μ−andB0→μ+μ−Decays inppCollisions ats=7TeV

S. Chatrchyan, +2233 more
- 01 Nov 2011 - 
TL;DR: In this article, a search for the rare decays was performed in collisions at the LHC with a data sample corresponding to an integrated luminosity of $1.14, and the resulting upper limits on the branching fractions were shown to be l1.9 and l4.6 at 95% confidence level.
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Cloud, Fog or Edge: Where to Compute?

Dragi Kimovski, +5 more
- 25 Jan 2021 - 
TL;DR: In this article, the authors provide a detailed performance and carbon footprint analysis of a selection of use case applications with complementary resource requirements across the computing continuum over a real-life evaluation testbed.
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Measurement of the ZZ production cross section and Z → ℓ+ℓ−ℓ′+ℓ′− branching fraction in pp collisions at s=13 TeV

Vardan Khachatryan, +2292 more
- 29 Jul 2016 - 
TL;DR: In this article, four-lepton production in proton-proton collisions was studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC.