# CERN Preprints

Последно добавени:
2020-07-14
12:16
 Observation of enhanced double parton scattering in proton-lead collisions at $\sqrt{s_\mathrm{NN}}=8.16$ TeV A study of prompt charm-hadron pair production in proton-lead collisions at $\sqrt{s_\mathrm{NN}}= 8.16$ TeV is performed using data corresponding to an integrated luminosity of about 30 nb${}^{-1}$, collected with the LHCb experiment. [...] CERN-EP-2020-119 ; LHCB-PAPER-2020-010. - 2020. Fulltext - Related data file(s) - Supplementary information

2020-07-14
12:00
 Technical Note N°92 : Calculation of Eddy curent effects in the vacuum chambers of the BOOSTER Synchrotron quadrupole and bending magnets / Asner, A MPS-INT-MA-67-11 ; CERN-MPS-INT-MA-67-11. - 1967. - 17 p. Full text

2020-07-14
04:06
 Unifying dark matter, dark energy and inflation with a fuzzy dark fluid / Arbey, A. ; Coupechoux, J.-F. Scalar fields appear in many cosmological models, in particular in order to provide explanations for dark energy and inflation, but also to emulate dark matter. [...] arXiv:2007.05376 ; CERN-TH-2020-117. - 23 p. Fulltext

2020-07-14
04:06
 Integrating LHCb workflows on HPC resources: status and strategies / Stagni, Federico (CERN) ; Valassi, Andrea (CERN) ; Romanovskiy, Vladimir (NRC Kurchatov Institute) High Performance Computing (HPC) supercomputers are expected to play an increasingly important role in HEP computing in the coming years. [...] arXiv:2006.13603. - 9 p. Fulltext

2020-07-14
04:06
 Exothermic Dark Matter for XENON1T Excess / Lee, Hyun Min (Chung-Ang U. ; CERN) Motivated by the recent excess in the electron recoil from XENON1T experiment, we consider the possibility of exothermic dark matter, which is composed of two states with mass splitting. [...] arXiv:2006.13183. - 16 p.

2020-07-14
04:06
 Temperature dependence of $\eta/s$ of strongly interacting matter: effects of the equation of state and the parametric form of $(\eta/s)(T)$ / Auvinen, Jussi (Belgrade, Inst. Phys.) ; Eskola, Kari J. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Huovinen, Pasi (Belgrade, Inst. Phys. ; Wroclaw U.) ; Niemi, Harri (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Paatelainen, Risto (CERN) ; Petreczky, Peter (Brookhaven) We investigate the temperature dependence of the shear viscosity to entropy density ratio $\eta/s$ using a piecewise linear parametrization. [...] arXiv:2006.12499. - 17 p.

2020-07-14
04:05
 Mathematical and Numerical Methods for Non-linear Beam Dynamics / Herr, Werner (CERN) One of the most severe limitations in particle accelerators and beam transport are non-linear effects. [...] arXiv:2006.09052. - 39 p. Fulltext

2020-07-14
04:05
 Direct Vlasov solvers / Mounet, Nicolas (CERN) In these proceedings we will describe the theory and practical steps required to build Vlasov solvers such as those commonly used to compute coherent instabilities in synchrotrons. [...] arXiv:2006.09080. - 25 p. Fulltext

2020-07-14
04:05
 Investigations into X-band dielectric disk accelerating structures for future linear accelerators / Wei, Yelong (CERN) ; Grudiev, Alexej (CERN) Dielectric disk accelerating (DDA) structures are being studied as an alternative to conventional disk-loaded copper structures. [...] arXiv:2006.07276. - 13 p. Fulltext

2020-07-14
04:05
 Outgassing properties of vacuum materials for particle accelerators / Chiggiato, Paolo (CERN) Gas load and pumping determine the quality of vacuum systems. [...] arXiv:2006.07124. - 47 p. Fulltext