# CERN Accelerating science

The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.

# Preprints

2016-10-20
15:52
 The Phase1 CMS Pixel detector upgrade / Tavolaro, Vittorio Raoul (Zurich, ETH) /CMS Collaboration The pixel detector of the CMS experiment will be replaced in an extended end-of-year shutdown during winter 2016/2017 with an upgraded one able to cope with peak instantaneous luminosities beyond the nominal LHC instantaneous luminosity of $1 \times 10^{34}$ cm$^{-2}$ s$^{-1}$. Under the conditions expected in the coming years, which will see an increase of a factor two in instantaneous luminosity, the present system would experience a dynamic inefficiency caused mainly by data losses due to buffer overflows. [...] CMS-CR-2016-249.- Geneva : CERN, 2016 - 9 p. Fulltext: PDF; In : International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2016), Sestri Levante, Italy, 5 - 9 Sep 2016

2016-10-20
15:49
 Measurements of Higgs boson production and properties in the WW decay channel using the CMS detector / Massironi, Andrea (Northeastern U.) /CMS Collaboration A summary of the CMS results in the study of the Higgs boson decaying to W boson pairs is presented.. CMS-CR-2016-259.- Geneva : CERN, 2016 - 6 p. Fulltext: PDF; In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016

2016-10-20
15:49
 Diphoton searches (CMS) / Quittnat, Milena Eleonore (Zurich, ETH) /CMS Collaboration Many physics scenarios beyond the standard model predict the existence of heavy resonances decaying to diphotons. This talk presents searches for BSM physics in the diphoton final state at CMS, focusing on the recent results.. CMS-CR-2016-251.- Geneva : CERN, 2016 - 13 p. Fulltext: PDF; In : 5th International Conference on New Frontiers in Physics, Kolymbari, Greece, 6 - 14 Jul 2016

2016-10-20
15:47
 Higgs boson parameters and decays into fermions / Bluj, Michal Jacek (NCBJ, Swierk) /ATLAS and CMS Collaborations In 2012 the discovery of a new boson with a mass of about 125 GeV and properties in agreement with those expected for the Higgs boson in the standard model was announced. In this note we review the results of searches for the fermionic decays the Higgs boson and the study of its properties performed with the proton-proton collision data recorded by the ATLAS and CMS detectors at the LHC in 2011 and 2012, corresponding to an integrated luminosity of approximately 5~fb$^{-1}$ and approximately 20~fb$^{-1}$ per experiment at $\sqrt{s}=7$~TeV and $\sqrt{s}=8$~TeV, respectively. [...] CMS-CR-2016-246.- Geneva : CERN, 2016 - 9 p. Fulltext: PDF; In : 28th Rencontres de Blois Particle Physics and Cosmology, Blois, France, 29 May - 3 Jun 2016

2016-10-20
15:47
 Forward energy measurement with CMS / Kheyn, Lev (Moscow State U.) /CMS Collaboration Energy flow is measured in the forward region of CMS at pseudorapidities up to 6.6 in pp interactions at 13 TeV with forward (HF) and very forward (CASTOR) calorimeters. The results are compared to model predictions. [...] CMS-CR-2016-234.- Geneva : CERN, 2016 - 5 p. Fulltext: PDF; In : 19th International Symposium on Very High Energy Cosmic Ray Interactions , Moscow, Russian Federation, 22 - 27 Aug 2016

2016-10-20
11:45
 Observation of the decay $B^0_s\to \phi\pi^+\pi^-$ and evidence for $B^0\to \phi\pi^+\pi^-$ The first observation of the rare decay $B^0_s\to\phi\pi^+\pi^-$ and evidence for $B^0\to\phi\pi^+\pi^-$ are reported, using $pp$ collision data recorded by the LHCb detector at centre-of-mass energies $\sqrt{s} = 7$ and 8 TeV, corresponding to an integrated luminosity of $3 {\rm fb}^{-1}$. [...] CERN-EP-2016-213 ; LHCB-PAPER-2016-028. - 2016. Fulltext - Previous draft version - Related data file(s)

2016-10-20
09:28
 New algorithms for identifying the flavour of $B^0$ mesons using pions and protons Two new algorithms for use in the analysis of $pp$ collision are developed to identify the flavour of $B^0$ mesons at production using pions and protons from the hadronization process [...] CERN-EP-2016-251 ; LHCB-PAPER-2016-039. - 2016. Fulltext - Previous draft version - Related data file(s)

2016-10-20
08:43
 Near Threshold Effects on Recombination and Vibrational Relaxation in Efimov Systems / Shu, D ; Simbotin, I ; Côté, R We investigate the energy dependence of inelastic processes in systems which possess Efimov states. [...] arXiv:1610.06153. - 2016. Preprint

2016-10-20
08:43
 Neural Networks for Modeling and Control of Particle Accelerators / Edelen, A L (Colorado State U.) ; Biedron, S G (Colorado State U. and Ljubljana U.) ; Chase, B E (Fermilab) ; Edstrom, D (Fermilab) ; Milton, S V (Colorado State U.) ; Stabile, P (Geneva, ADAM) We describe some of the challenges of particle accelerator control, highlight recent advances in neural network techniques, discuss some promising avenues for incorporating neural networks into particle accelerator control systems, and describe a neural network-based control system that is being developed for resonance control of an RF electron gun at the Fermilab Accelerator Science and Technology (FAST) facility, including initial experimental results from a benchmark controller.. arXiv:1610.06151 ; FERMILAB-PUB-16-121-AD. - 2016. Preprint

2016-10-20
08:43
 Momentum Transport and Stable Modes in Kelvin-Helmholtz Turbulence / Fraser, A E ; Terry, P W ; Zweibel, E G The Kelvin-Helmholtz (KH) instability, which arises in astrophysical and fusion systems where turbulent momentum transport is important, has an unstable and a stable mode at the same scales. [...] arXiv:1610.06142. - 2016. - 7 p. Preprint

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