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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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Searches for long-lived charged particles in pp collisions at sqrt(s) = 7 and 8 TeV

S. Chatrchyan, +2270 more
- 19 Jul 2013 - 
TL;DR: In this article, results of searches for heavy stable charged particles produced in pp collisions at 7 and 8 TeV are presented corresponding to an integrated luminosity of 5.0 and 18.8 inverse femtobarns, respectively.
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Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at √s = 8 TeV

Vardan Khachatryan, +2207 more
- 09 Feb 2015 - 
TL;DR: In this paper, the performance of the Cern LHC detector for photon reconstruction and identification in proton-proton collisions at a centre-of-mass energy of 8 TeV at the CERN LHC is described.
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Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at s =8TeV

Vardan Khachatryan, +2130 more
- 17 Jan 2015 - 
TL;DR: In this article, a search for resonances and quantum black holes is performed using the dijet mass spectra measured in proton-proton collisions at s√=8 TeV with the CMS detector at the LHC.
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Jet momentum dependence of jet quenching in PbPb collisions at sNN=2.76 TeV

S. Chatrchyan, +2176 more
TL;DR: In this article, the dijet momentum balance and angular correlations are studied as a function of collision centrality and leading jet transverse momentum for PbPb collisions at a nucleon-nucleon center-of-mass energy of 276 TeV.
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Suppression of non-prompt J/ψ, prompt J/ψ, and Y(1S) in PbPb collisions at √s NN = 2.76 TeV

S. Chatrchyan, +2296 more
- 14 May 2012 - 
TL;DR: In this paper, the yields of both prompt and non-prompt J/psi, as well as Y(1S) mesons, are measured by the CMS experiment via their dimuon decays in PbPb and pp collisions at sqrt(sNN) = 2.76 TeV.