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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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Search for jet extinction in the inclusive jet-p(T) spectrum from proton-proton collisions at root s=8 TeV

Vardan Khachatryan, +2119 more
- 18 Aug 2014 - 
TL;DR: In this paper, the first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7 fb−1 of proton-proton collisions at a center of mass energy of 8 TeV.
Journal ArticleDOI

Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at root s=7 and 8 TeV

Khachatryan, +2289 more
- 08 Sep 2016 - 
TL;DR: In this article, the normalized differential cross sections for top quark pair production with respect to four kinematic event variables: the missing transverse energy, the scalar sum of the jet transverse momentum (pT), the scalars sum of all objects in the event, and the pT of leptonically decaying W bosons from top-quark decays are reported.
Journal ArticleDOI

Measurement of jet multiplicity distributions in t(t)over-bar production in pp collisions at root s = 7 TeV (vol 74, 3014, 2014)

S. Chatrchyan, +2214 more
- 01 Aug 2014 - 
TL;DR: In this paper, the normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7676 $$\,\text {TeV} $$ at the LHC with the CMS detector.

Angular analysis of the decay B⁰ → K*⁰ μ⁺ μ⁻ from pp collisions at √s = 8 TeV

Vardan Khachatryan, +2290 more
TL;DR: Doser et al. as discussed by the authors presented a survey of the state of the art in the field of cyber-physical cyber-warrior networks and proposed a method to solve the problem.

Evidence for exclusive $\gamma\gamma \to W^{+} W^{-}$ production and constraints on anomalous quartic gauge couplings at $\sqrt{s} =$ 7 and 8 TeV

Vardan Khachatryan, +2278 more