CERN Accelerating science

CERN Published Articles

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2019-07-18
06:15
Highlights of Searches for Physics Beyond the Standard Model from the CMS Experiment at the LHC / Shmatov, S V (Dubna, JINR ; Dubna Intl. Univ.)
Searches for physics beyond the Standard Model in the Higgs sector with the CMS experiment at the Large Hadron Collider are briefly reviewed. These are based on the CMS data collected during the first and second LHC runs..
2018 - 6 p. - Published in : Phys. Part. Nucl. 49 (2018) 735-740
In : International Session-Conference Physics of Fundamental Interactions, Nalchik, Russia, 6 - 8 Jun 2017, pp.735-740

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2019-07-18
06:15
Observation of $\pi^- K^+$ and $\pi^+ K^-$ atoms / Yazkov, Valeriy (SINP, Moscow) /DIRAC
Experiment DIRAC at CERN PS detects 349 ± 62 pairs from $\pi^-K^+$ and $\pi^+K^-$ atoms and makes observation of exotic atoms consist of pion and kaon. It allows to measure a difference of S-wave pion-kaon scattering length with isospin 1/2 and 3/2: $|a{_0^{1/2}}−a{_0^{3/2}}|$. [...]
2018 - 10 p. - Published in : EPJ Web Conf. 181 (2018) 01036 Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 11 - 15 Sep 2017, pp.01036

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2019-07-18
06:15
Proposal for enhancement of antihydrogen ion production in the GBAR experiment / Cooke, D A (Zurich, ETH) ; Husson, A (CSNSM, Orsay) ; Lunney, D (CSNSM, Orsay) ; Crivelli, P (Zurich, ETH)
The production of antihydrogen ions (H̅+) in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the antiprotons(P̅) from the ELENA ring will capture a positron from a positronium(Ps) target producing antihydrogen (H̅) atoms. [...]
2018 - 6 p. - Published in : EPJ Web Conf. 181 (2018) 01002 Fulltext: PDF;
In : International Conference on Exotic Atoms and Related Topics, Vienna, Austria, 11 - 15 Sep 2017, pp.01002

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2019-07-18
06:15
A strange program for LHCb / Santos, Diego Martínez (Santiago de Compostela U., IGFAE) /LHCb
The LHCb experiment is expanding its physics program towards studies of rare decays of strange particles. In this talk, we reviewed the published results by LHCb in $K_{S}^{0} \rightarrow \mu ^{+}\mu ^{-}$ and $\sum^{+} \rightarrow p\mu ^{+}\mu ^{-}$ decays, as well as sensitivity studies and prospects for other strangeness decays..
2018 - 5 p. - Published in : EPJ Web Conf. 179 (2018) 01013 Fulltext: PDF;
In : Flavour changing and conserving processes, Anacapri, Italy, 7 - 9 Sep 2017, pp.01013

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2019-07-18
06:15
B decay anomalies at LHCb / Oyanguren, Arantza (Valencia U., IFIC) /LHCb
The LHCb collaboration has provided a plethora of precise measurements of flavour observables in the last years. In the B meson sector some of these results show consistent deviations from Standard Model predictions with a clear tendency to specific New Physics scenarios. [...]
2018 - 18 p. - Published in : EPJ Web Conf. 175 (2018) 01004 Fulltext: PDF;
In : 35th International Symposium on Lattice Field Theory, Granada, Spain, 18 - 24 Jun 2017, pp.01004

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2019-07-18
06:15
Radiative Neutrino Mass Generation: Models, Flavour and the LHC / Volkas, Raymond R (ARC, CoEPP, Melbourne)
Radiative neutrino mass models and the seesaw models are viewed from the unifying framework of standard model effective operators that explicitly violate lepton number by two units (ΔL = 2). After some comments on naturalness and leptogenesis in the minimal type 1 seesaw model, a full list of minimal renormalisable models that produce mass dimension-7, ΔL = 2 operators at low energies is presented. [...]
2018 - 8 p. - Published in : 10.1142/9789813231801_0022
In : International Conference on Cosmology, Gravitational Waves and Particles, Singapore, Singapore, 6 - 10 Feb 2017, pp.259-266

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2019-07-17
08:01
Beamline Design for Plasma-Wakefield Acceleration Experiments at MAX IV / Svensson, Jonas Björklund (Lund U.) ; Ekerfelt, Henrik (Lund U.) ; Lundh, Olle (Lund U.) ; Mansten, Erik (Lund U., MAX-lab) ; Andersson, Joel (Lund U., MAX-lab) ; Kotur, Marija (Lund U., MAX-lab) ; Lindau, Filip (Lund U., MAX-lab) ; Thorin, Sara (Lund U., MAX-lab) ; Charles, Tessa K (CERN ; Melbourne U.)
The MAX IV Laboratory is a synchrotron radiation user facility located just outside the city of Lund, Sweden. The facility is made up of two storage rings, at 3 GeV and 1.5 GeV, respectively, and a linear accelerator, serving as a full-energy injector for the rings as well as a driver for the Short-Pulse Facility (SPF) located downstream of the extraction point to the 3 GeV ring. [...]
2019 - 4 p. - Published in : 10.1109/AAC.2018.8659401
In : 18th Advanced Accelerator Concepts Workshop, Breckenridge, CO, US, 12 - 17 Aug 2018, pp.8659401

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2019-07-17
08:01
Estimating gluon saturation in dijet photoproduction in UPC / Kotko, Piotr (Penn State U.)
We study dijet production in the ultra-peripheral heavy ion collisions (UPC) at LHC within the saturation formalism. More precisely, we use an approach which is  the large-$p_T$ approximation to the Color Glass Condensate on one hand, and the small-$x$ limit of the  transverse momentum dependent (TMD) factorization on the other. [...]
2018 - 6 p. - Published in : CERN Proc. 1 (2018) 145 Fulltext: PDF;
In : Proceedings of the PHOTON-2017 Conference, pp.145

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2019-07-17
08:01
Simulating HEP Workflows on Heterogeneous Architectures / Leggett, Charles (LBL, Berkeley) ; Shapoval, Illya (LBL, Berkeley) /ATLAS
The next generation of supercomputing facilities, such as Oak Ridge's Summit and Lawrence Livermore's Sierra, show an increasing use of GPGPUs and other accelerators in order to achieve their high FLOP counts. This trend will only grow with exascale facilities. [...]
2018 - 1 p. - Published in : 10.1109/eScience.2018.00087
In : 14th eScience IEEE International Conference, Amsterdam, Netherlands, 29 Oct - 1 Nov 2018, pp.343

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2019-07-17
08:01
Charged Particle Trajectory Reconstruction Algorithms for Cathode Strip Chambers of the CMS Experiment / Palichik, Vladimir (Dubna, JINR) ; Voytishin, Nikolay (Dubna, JINR)
The Large Hadron Collider is delivering a growing luminosity and rate of interactions. This imposes strict requirements on the algorithms used for the reconstruction of charged particle trajectories. [...]
2018 - 2 p. - Published in : 10.1109/ROLCG.2018.8572020
In : 11th RO-LCG Conference on Grid, Cloud & High Performance Computing in Science, Cluj-Napoca, Romania, 17 - 19 Oct 2018, pp.8572020

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