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Vital signs and laboratory values are routinely used to guide clinical decision-making for polytrauma patients, such as the decision to use damage control techniques versus early definitive fracture fixation. Prior multivariate models have…

Quantitative Methods · Quantitative Biology 2020-10-09 Adam J. Starr , Manjula Julka , Arun Nethi , John D. Watkins , Ryan W. Fairchild , Michael W. Cripps , Dustin Rinehart , Hayden N. Box

To precisely measure jets over a large background such as pile up in high luminosity p+p collisions at LHC, a new generation of jet reconstruction algorithms is developed. These algorithms are also applicable to reconstruct jets in the…

Nuclear Experiment · Physics 2014-11-20 Sevil Salur

One of the fundamental questions in the field of subatomic physics is what happens to matter at extreme densities and temperatures as may have existed in the first microseconds after the Big Bang and exists, perhaps, in the core of dense…

Nuclear Experiment · Physics 2011-06-16 Raimond Snellings

To compensate the large beam-beam tune spread and beam-beam resonance driving terms in the polarized proton operation in the Relativistic Heavy Ion Collider (RHIC), we will introduce a low-energy DC electron beam into each ring to collide…

Accelerator Physics · Physics 2014-10-22 Y. Luo , W. Fischer , N. P. Abreu , X. Gu , A. Pikin , G. Robert-Demolaize

We present a scalable technique for the simulation of collider events with multi-jet final states, based on an improved parton-level event file format. The method is implemented for both leading- and next-to-leading order QCD calculations.…

High Energy Physics - Phenomenology · Physics 2023-11-09 Enrico Bothmann , Taylor Childers , Christian Guetschow , Stefan Höche , Paul Hovland , Joshua Isaacson , Max Knobbe , Robert Latham

The model to simulate rescattering and partonic energy loss in ultrarelativistic heavy ion collisions is presented. The full heavy ion event is obtained as a superposition of a soft hydro-type state and hard multi-jets. This model is…

High Energy Physics - Phenomenology · Physics 2009-04-16 I. P. Lokhtin , S. V. Petrushanko , A. M. Snigirev , C. Yu. Teplov

A new system used for monitoring energetic Coulomb-scattered electrons as the main diagnostic for accurately aligning the electron and ion beams in the new Relativistic Heavy Ion Collider (RHIC) electron lenses is described in detail. The…

sPHENIX is a new experiment that is being constructed at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The primary physics goals of sPHENIX are to measure jets, their substructure, and the upsilon resonances in…

Instrumentation and Detectors · Physics 2020-08-20 Joseph D. Osborn

With the aim of understanding the phase structure of nuclear matter created in high-energy nuclear collisions at finite baryon density, a beam energy scan program has been carried out at Relativistic Heavy Ion Collider (RHIC). In this…

Nuclear Experiment · Physics 2020-04-03 Xiaofeng Luo , Shusu Shi , Nu Xu , Yifei Zhang

Large transverse momentum jets provide unique tools to study dense QCD matter in high-energy heavy-ion collisions. Results from RHIC on suppression of high transverse momentum particles in Au+Au collisions indicate a significant energy loss…

Nuclear Experiment · Physics 2008-11-26 Christof Roland , Gábor I. Veres , Krisztián Krajczár

The paper presents a feedforward plus feedback controller structure with I and PI controllers for control of an integrating process with dead time. Guidelines for controller gain selection based on time domain specifications of damping…

Systems and Control · Electrical Eng. & Systems 2019-08-27 Sujay D. Kadam

Finding tracks downstream of the magnet at the earliest LHCb trigger level is not part of the baseline plan of the upgrade trigger, on account of the significant CPU time required to execute the search. Many long-lived particles, such as…

Instrumentation and Detectors · Physics 2020-08-26 Riccardo Cenci , Andrea Di Luca , Federico Lazzari , Michael J. Morello , Giovanni Punzi

Reservoir computing(RC) is a brain-inspired computing framework that employs a transient dynamical system whose reaction to an input signal is transformed to a target output. One of the central problems in RC is to find a reliable reservoir…

Chaotic Dynamics · Physics 2020-08-26 Jaesung Choi , Pilwon Kim

A second major LHCb detector upgrade will be installed during long shutdown 4 (LS4) of the CERN Large Hadron Collider. The new detector will provide excellent performance for studies of Quantum Chromodynamics at high temperature and…

High Energy Physics - Experiment · Physics 2025-04-01 LHCb collaboration

Viewing the trajectory of a patient as a dynamical system, a recurrent neural network was developed to learn the course of patient encounters in the Pediatric Intensive Care Unit (PICU) of a major tertiary care center. Data extracted from…

Machine Learning · Statistics 2017-01-25 M Aczon , D Ledbetter , L Ho , A Gunny , A Flynn , J Williams , R Wetzel

The acceleration of high-intensity lead (Pb) beams for injection into the Large Hadron Collider (LHC) is limited by significant losses in the preceding CERN ion injector chain. A potential but largely uncharted source of losses are…

Accelerator Physics · Physics 2025-06-04 E. Waagaard , F. Ukena , J. Olsen , R. Alemany Fernández , J. Somoza , G. Weber

We show that heavy ion collisions at the LHC provide a promising environment to search for new long lived particles in well-motivated New Physics scenarios. One advantage lies in the possibility to operate the main detectors with looser…

High Energy Physics - Phenomenology · Physics 2020-02-25 Marco Drewes , Andrea Giammanco , Jan Hajer , Michele Lucente , Olivier Mattelaer

The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory is the first accelerator facility that can accelerate, store and collide spin polarized proton beams. This development enables a physics program aimed at…

High Energy Physics - Experiment · Physics 2017-08-23 L. C. Bland

A new type of Time Projection Chamber (TPC) has been proposed for the upgrade of the ALICE (A Large Ion Collider Experiment at CERN) so as to cater to the high luminosity environment expected at the Large Hadron Collider (LHC) facility in…

Instrumentation and Detectors · Physics 2015-11-17 Saikat Biswas

The design luminosity for the future linear colliders is very demanding and challenging. Beam-based feedback systems will be required to achieve the necessary beam-beam stability and steer the two beams into collision. In particular we have…

Accelerator Physics · Physics 2009-02-18 J. Resta-Lopez , P. N. Burrows , A. Latina , D. Schulte