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The first calculation of the next-to-leading-order electroweak corrections to Z-boson + jet hadroproduction including leptonic Z-boson decays is presented, i.e. to the production of a charged lepton--anti-lepton final state in association…

High Energy Physics - Phenomenology · Physics 2015-05-27 Ansgar Denner , Stefan Dittmaier , Tobias Kasprzik , Alexander Mück

We compare the abilities of the cluster-type jet algorithm, KtJet, and a mid-point iterating cone algorithm to reconstruct the top mass at the LHC. We discuss the information contained in the merging scales of cluster-type algorithms, and…

High Energy Physics - Phenomenology · Physics 2009-11-11 Michael H. Seymour , Christopher Tevlin

Final states with a vector boson and a hadronic jet allow one to infer the Born-level kinematics of the underlying hard scattering process, thereby probing the partonic structure of the colliding protons. At forward rapidities, the parton…

High Energy Physics - Phenomenology · Physics 2019-06-26 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , D. M. Walker

We propose the Bi-Event Subtraction Technique (BEST) as a method of modeling and subtracting large portions of the combinatoric background during reconstruction of particle decay chains at hadron colliders. The combinatoric background…

High Energy Physics - Phenomenology · Physics 2011-09-13 Bhaskar Dutta , Teruki Kamon , Nikolay Kolev , Abram Krislock

We present data-driven methods for the full reconstruction of jets in heavy ion collisions, for inclusive and co-incidence jet measurements at both RHIC and LHC. The complex structure of heavy ion events generates a large background of…

High Energy Physics - Experiment · Physics 2012-10-05 G. O. V. de Barros , Bo Fenton-Olsen , Peter Jacobs , Mateusz Ploskon

We describe current and future hadron collider limits on new vector-like leptons with exotic decays. We consider the possibility that, besides standard decays, the new leptons can also decay into a Standard Model charged lepton and a stable…

High Energy Physics - Phenomenology · Physics 2022-02-09 Guilherme Guedes , José Santiago

The studies presented in this paper provide a first experimental test of the Particle Flow Algorithm (PFA) concept using data recorded in high granularity calorimeters. Pairs of overlaid pion showers from CALICE 2007 test beam data are…

Instrumentation and Detectors · Physics 2015-03-19 The CALICE Collaboration

The production of a pair of jets with large rapidity separation in hadron-hadron collisions, and of forward jets in deep inelastic scattering, can in principle be used to test the predictions of the BFKL equation. However in practice…

High Energy Physics - Phenomenology · Physics 2007-05-23 Lynne H. Orr , W. J. Stirling

We present a lattice algorithm specifically designed for some classical applications of lattice reduction. The applications are for lattice bases with a generalized knapsack-type structure, where the target vectors are boundably short. For…

Symbolic Computation · Computer Science 2010-02-04 Mark Van Hoeij , Andrew Novocin

Central jet vetoes are powerful tools for reducing QCD background in measurements and searches for electroweak and colorless, new physics processes in hadron collisions. In this letter, we report the key findings of a new philosophy to…

High Energy Physics - Phenomenology · Physics 2018-09-28 Silvia Pascoli , Richard Ruiz , Cedric Weiland

We consider the longitudinal momentum distribution of hadrons inside jets in proton-proton collisions. At partonic threshold large double logarithmic corrections arise which need to be resummed to all orders. We develop a factorization…

High Energy Physics - Phenomenology · Physics 2020-03-18 Tom Kaufmann , Xiaohui Liu , Asmita Mukherjee , Felix Ringer , Werner Vogelsang

Jet classification is an important ingredient in measurements and searches for new physics at particle coliders, and secondary vertex reconstruction is a key intermediate step in building powerful jet classifiers. We use a neural network to…

High Energy Physics - Experiment · Physics 2021-07-07 Jonathan Shlomi , Sanmay Ganguly , Eilam Gross , Kyle Cranmer , Yaron Lipman , Hadar Serviansky , Haggai Maron , Nimrod Segol

We study the impact of new set of cuts, proposed in our previous works, on the improvement of accuracy of the jet energy calibration with 'p p ->photon+Jet+X' process at LHC. Monte Carlo events produced by the PYTHIA 5.7 generator are used…

High Energy Physics - Experiment · Physics 2007-05-23 D. V. Bandurin , V. F. Konoplyanikov , N. B. Skachkov

Most sparticle decay cascades envisaged at the Large Hadron Collider (LHC) involve hadronic decays of intermediate particles. We use state-of-the art techniques based on the \kt jet algorithm to reconstruct the resulting hadronic final…

High Energy Physics - Phenomenology · Physics 2009-11-13 J. M. Butterworth , J. R. Ellis , A. R. Raklev

A fundamental characteristic of hadron colliders is the abundant production of jets, which then are studied to learn about hard QCD, the proton structure, or nonperturbative effects. In the following the latest results and developments from…

High Energy Physics - Experiment · Physics 2013-05-28 Klaus Rabbertz

Molecule generation is to design new molecules with specific chemical properties and further to optimize the desired chemical properties. Following previous work, we encode molecules into continuous vectors in the latent space and then…

Machine Learning · Computer Science 2020-01-16 Chaochao Yan , Sheng Wang , Jinyu Yang , Tingyang Xu , Junzhou Huang

A novel combination of established data analysis techniques for reconstructing all charged-particle tracks in high energy collisions is proposed. It uses all information available in a collision event while keeping competing choices open as…

Data Analysis, Statistics and Probability · Physics 2018-07-02 Ferenc Siklér

We review the experimental searches for new particles in the dijet mass spectrum conducted at the CERN SppS, the Fermilab Tevatron Collider, and the CERN Large Hadron Collider. The theory of the QCD background and new particle signals is…

High Energy Physics - Experiment · Physics 2011-12-20 Robert M. Harris , Konstantinos Kousouris

This note gives a conceptual description and illustration of the CLD detector, based on the work for a detector at CLIC. CLD is one of the detectors envisaged at a future 100 km $e^+e^-$ circular collider (FCC-ee). The note also contains a…

Main parameters of future lepton-hadron colliders are estimated. Namely, THERA and Linac*LHC based ep, gamma-p, eA and FEL gamma-A colliders are considered. The physics search potential of these machines are considered.

Accelerator Physics · Physics 2007-05-23 O. Yavas
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