A. Sznajder

We study various machine learning based algorithms for performing accurate jet flavor classification on field-programmable gate arrays and demonstrate how latency and resource consumption scale with the input size and choice of algorithm. These architectures provide an initial design for models that could be used for tagging at the CERN LHC during its high-luminosity phase. The high-luminosity upgrade will lead to a five-fold increase in its instantaneous luminosity for proton-proton collisions and, in turn, higher data volume and complexity, such as the availability of jet constituents. Through quantization-aware training and efficient hardware implementations, we show that O(100) ns inference of complex architectures such as deep sets and interaction networks is feasible at a low computational resource cost.

The CMS and TOTEM experiments intend to carry out a joint diffractive/forward physics program with an unprecedented rapidity coverage. The present document outlines some aspects of such a physics program, which spans from the investigation of the low-x structure of the proton to the diffractive production of a SM or MSSM Higgs boson.

We review theoretical and experimental results relevant to charm and bottom physics. In particular, we consider charmonium and open heavy-flavour production at Tevatron, LEP and HERA colliders, and in heavy-ion scattering. We study the prospect of future b-physics measurement at the LHC with the ATLAS and CMS detectors.

Abstract We investigate the possibility of using Deep Learning algorithms for jet identification in the L1 trigger at HL-LHC. We perform a survey of architectures (MLP, CNN, Graph Networks) and benchmark their performance and resource consumption on FPGAs using a QKeras for quantization aware training and HLS4ML to convert the neural network model into a FPGA firmware. We use the HLS4ML jet dataset to compare the results obtained in this study to previous literature on Fast Machine Learning applications on FPGAs.

The authors determine the effective inelastic p{bar p} cross-section into the D0 Luminosity Monitor for all run periods prior to September 2004. This number is used to relate the measured inelastic collision rate to the delivered luminosity. The key ingredients are the inelastic p{bar p} cross-section, the Luminosity Monitor efficiency, and the modeling of kinematic distributions for various inelastic processes used to determine the detector acceptance. The resulting value is {sigma}{sub p{bar p},eff} = 46 {+-} 3 mb.

We propose a Fast Matrix Element (FastME) method to determine event weights using a sample of simulated Monte Carlo events for a given process and its backgrounds, the events templates.Given a data event we search the signal and backgrounds template samples for the closest Monte Carlo events .This distance measure is defined in terms of the relevant final state particles in the event , taking into account the resolution of the measured observable quantities.The closest Monte Carlo event weight is used as an estimate for the data event weight, instead of evaluating the traditional Matrix Element method convolution integral between the process matrix element and the transfer functions.We show some preliminary results of the method performance.

The status of the fiducial cross sections of the 125GeV Higgs boson using the CMS detector are reported. New run-II results at 13TeV are presented together with the run-I measurements 7TeV and 8TeV. Differential and integrated fiducial cross sections for Higgs production in the decay channels H → ZZ → 4l , H → γγ and H → WW → 2l2ν are measured. The differential distribu- tions are measured as a function of the kinematic properties of the final state of the given decay channel. Measurements are found to agree, within experimental uncertainties, with theoretical calculations based on the standard model.

An exploratory study has been performed in order to assess the possibility of probing the symmetry breaking mechanism through the $VV$ fusion process using the CMS detector. A model independent analysis was carried out with no assumption on the mechanism restoring the unitarity in the scattering amplitude and without any degrees of freedom beyond the SM. In order to explore the sensitivity of the analysis method to an heavy Higgs resonance, we analyzed a data set produced using an Higgs boson mass of $500GeV$. Moreover, in order to consider the $VV$ fusion cross section in a region where no resonances are present, a sample corresponding to the no-Higgs scenario, that in the SM is equivalent to a very high Higgs mass, has been also studied.

A precise alignment of Muon System is one of the requirements to fulfill the CMS expected performance to cover its physics program. A first prototype of the software and computing tools to achieve this goal has been successfully tested during the CSA06, Computing, Software and Analysis Challenge in 2006. Data was exported from Tier-0 to Tier-1 and Tier-2, where the alignment software was run. Re-reconstruction with new geometry files was also performed at remote sites. Performance and validation of the software has also been tested on cosmic data, taken during the MTCC in 2006.

This document summarises the talks and discussions happened during the VBSCan Split17 workshop, the first general meeting of the VBSCan COST Action network. This collaboration is aiming at a consistent and coordinated study of vector-boson scattering from the phenomenological and experimental point of view, for the best exploitation of the data that will be delivered by existing and future particle colliders.

CERN-ACC-2018-004517 March 2019Higgs and Electro-weak symmetry breaking at the FCC-hhL. Borgonovi∗, S. Braibant∗, B. Di Micco†, E. Fontanesi∗, P. Harris‡, C. Helsens§, D. Jamin§,M.L. Mangano§, G. Ortona¶, M. Selvaggi1)§, A. Sznajder‖, M. Testa¶, M. Verducci¶On behalf of the FCC-hh Collaboration∗Universita di Bologna, Italy,†Universita degli Studi Roma Tre, Italy,‡Massachusetts Institute of Technology (MIT), Cambridge, USA,§European Organization for Nuclear Research (CERN), Geneva, Switzerland,¶Laboratoire Leprince-Ringuet, Ecole Polytechnique (LLR), Palaiseau, France,‖Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, BrazilAbstractThe future circular hadron-hadron collider FCC-hh is expected to produce collisions at thecenter of mass energy of√s=100 TeV and to deliver an integrated luminosity of 30 ab−1.The Higgs-self coupling will be measured with a 5% precision via double Higgs production.Tens of billions of Higgs bosons will be produced at the FCC-hh. Such large statisticswill allow for a wide range of possibilities in the realm of precision Higgs measurements.Several Higgs couplings will be measured to a percent level precision, including the secondgeneration muon yukawa coupling. The Higgs to invisible branching fraction will be probedto a level of few 10−4and the rate of longitudinally polarized vector bosons produced invector boson scattering will be measured with 2% precision.

Preliminary results on the production of muons associated with jets in the D0 detector at FERMILAB are presented. From the parallel and transverse muon momentum distributions with respect to the associated jet, the relative content of Heavy Flavors in jets, as well as fragmentation properties are inferred. Results are confronted with Monte Carlo predictions.