CERN Preprints

2016-07-29
17:26
 Measurement of the ZZ production cross section and $\mathrm{ Z } \to {\ell^+\ell^-\ell^{\prime+}\ell^{\prime-}}$ branching fraction in pp collisions at $\sqrt{s} =$ 13 TeV Four-lepton production in proton-proton collisions, ${\mathrm{ p }\mathrm{ p }} \to \left(\mathrm{Z} / \gamma^*\right)\left(\mathrm{Z}/ \gamma^*\right) \to {\ell^+\ell^-\ell^{\prime+}\ell^{\prime-}}$, where $\ell, \ell' = \mathrm{ e }$ or $\mu$, is studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. [...] CERN-EP-2016-174 ; CMS-SMP-16-001-003. - 2016. Additional information for the analysis - CMS AuthorList - Fulltext

2016-07-29
14:25
 A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 $pp$-collision data with the ATLAS detector A measurement of the calorimeter response to isolated charged hadrons in the ATLAS detector at the LHC is presented. [...] CERN-EP-2016-149. - 2016. Fulltext - Previous draft version

2016-07-28
11:26
 Measurement of the $b\overline{b}$ dijet cross section in $pp$ collisions at $\sqrt{s} = 7$ TeV with the ATLAS detector. / ATLAS Collaboration The dijet production cross section for jets containing a $b$-hadron ($b$-jets) has been measured in proton--proton collisions with a centre-of-mass energy of $\sqrt{s} = 7$ TeV, using the ATLAS detector at the LHC. [...] CERN-EP-2016-091 ; arXiv:1607.08430. - 2016. - 19 p. Previous draft version - Full text - Full text

2016-07-28
07:34
 Moduli Backreaction on Inflationary Attractors / Roest, Diederik (U. Groningen, VSI ; CERN) ; Scalisi, Marco (U. Groningen, VSI ; DESY) ; Werkman, Pelle (U. Groningen, VSI) We investigate the interplay between moduli dynamics and inflation, focusing on the KKLT-scenario and cosmological $\alpha$-attractors. [...] arXiv:1607.08231 ; CERN-TH-2016-168 ; DESY 16-143. - 2016. - 23 p. Preprint - Full text

2016-07-27
13:31
 Search for new phenomena in different-flavour high-mass dilepton final states in \boldmath{$pp$} collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration A search is performed for a heavy particle decaying into different flavour dilepton pairs ($e\mu$, $e\tau$ or $\mu\tau$), using 3.2 $fb^{-1}$ of proton--proton collision data at $\sqrt{s}=13$ TeV collected in 2015 by the ATLAS detector at the Large Hadron Collider. [...] CERN-EP-2016-168 ; arXiv:1607.08079. - 2016. - 25 p. Previous draft version - Full text - Full text

2016-07-27
08:47
 The Linac4 Project / Lombardi, Alessandra (CERN) Linac4 is a normal conducting, 160 MeV H- ion accelerator that is being constructed within the scope of the LHC injectors upgrade project. [...] CERN-ACC-2016-0104. - 2016. - 7 p. Full text

2016-07-27
08:13
 Measurement of the ratio of branching fractions $\mathcal{B}(B_{c}^{+} \to J/\psi K^{+})/\mathcal{B}(B_{c}^{+} \to J/\psi\pi^{+})$ / LHCb collaboration The ratio of branching fractions $R_{K/\pi} \equiv \mathcal{B}(B_{c}^{+} \to J/\psi K^{+})/\mathcal{B}(B_{c}^{+} \to J/\psi\pi^{+})$ is measured with $pp$ collision data collected by the LHCb experiment at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3${\mbox{fb}^{-1}}$. [...] arXiv:1607.06823 ; LHCB-PAPER-2016-020 ; CERN-EP-2016-173. - 2016. - 16 p. Preprint - Full text

2016-07-27
06:00
 Fundamental Physics with Antihydrogen / Hangst, Jeffrey S (Aarhus U. ; CERN) Antihydrogen—the antimatter equivalent of the hydrogen atom—is of fundamental interest as a test bed for universal symmetries—such as CPT and the Weak Equivalence Principle for gravitation. [...] 2014. - 19 p.

2016-07-26
08:15
 Analysis of the Influence of Fibre Diameter on Wirescanner Beam Profile Measurements / King, Quentin (CERN) It is often important to be able to measure beam profiles in regions where the beam size is very small. [...] CERN-SPS-ABM-Note-88-02. - 1988. - 8 p. Fulltext

2016-07-25
11:23
 LHC Run 2: Results and Challenges / Bruce, Roderik (CERN) ; Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Iadarola, Giovanni (CERN) ; Jowett, John (CERN) ; Li, Kevin Shing Bruce (CERN) ; Lamont, Mike (CERN) ; Lechner, Anton (CERN) et al. The first proton run of the LHC was very successful and resulted in important physics discoveries. [...] CERN-ACC-2016-0103. - 2016. - 8 p. Full text