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The ALICE Collaboration has just finished a major detector upgrade that increases the data-taking rate capability by two orders of magnitude and will allow to collect unprecedented data samples. For example, the analysis input for 1 month…

Instrumentation and Detectors · Physics 2022-11-23 Raluca Cruceru

The ALICE experiment at CERN is preparing for a major upgrade for the third phase of data taking run (Run 3), when the high luminosity phase of the Large Hadron Collider (LHC) starts. The increase in the beam luminosity will result in high…

Instrumentation and Detectors · Physics 2019-02-20 Jubin Mitra , Erno David , Eduardo Mendez , Shuaib Ahmad Khan , Tivadar Kiss , Sophie Baron , Alex Kluge , Tapan Nayak

ALICE analyses mostly deal with large datasets using the distributed Grid infrastructure. In LHC running periods 1 and 2, ALICE developed a system of analysis trains (so-called $"$LEGO trains$"$) that allowed the user to configure analysis…

Instrumentation and Detectors · Physics 2021-09-21 Raquel Quishpe , Jan Fiete Grosse-Oetringhaus , Raluca Cruceru , Costin Grigoras

The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is the world's largest and most powerful particle accelerator colliding beams of protons and lead ions at energies up to 7 ZTeV, Z is the atomic…

First experimental results are presented on event-by-event net-proton fluctuation measurements in Pb- Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV, recorded by the ALICE detector at the CERN LHC. The ALICE detector is well suited for such…

Nuclear Experiment · Physics 2018-03-14 Anar Rustamov

The ALICE detector was designed to study the physics of matter under extreme conditions of high energy density. Different results were reported by the experiment using data from the successful run I of the LHC. The goal of the present work…

High Energy Physics - Experiment · Physics 2019-08-13 Antonio Ortiz

In the ALICE experiment hundreds of users are analyzing big datasets on a Grid system. High throughput and short turn-around times are achieved by a centralized system called the LEGO trains. This system combines analysis from different…

High Energy Physics - Experiment · Physics 2019-08-13 Markus Zimmermann

The ALICE apparatus includes an Inner Tracking System for high-precision vertexing and tracking at midrapidity. Thanks to this detector, remarkable results were obtained with Run 2 data in all collision systems studied at the LHC. In this…

Instrumentation and Detectors · Physics 2020-09-01 Mattia Faggin

The study of heavy ion interactions constitutes an important part of the experimental program outlined for the Large Hadron Collider under construction at CERN and expected to be operational by 2006. ALICE is the single detector having the…

High Energy Physics - Phenomenology · Physics 2017-08-23 G. Valenti

The ALICE experiment has undergone a major detector upgrade for Run 3, expanding its detection capabilities for a wide variety of studies. The new continuous readout has significantly enhanced the physics potential for ultra-peripheral…

High Energy Physics - Experiment · Physics 2024-05-30 Anisa Khatun

ALICE Overwatch is a project started in late 2015 to provide augmented online monitoring and data quality assurance utilizing time-stamped QA histograms produced by the ALICE High Level Trigger. The system receives the data via ZeroMQ,…

Instrumentation and Detectors · Physics 2019-10-02 R. J. Ehlers , J. D. Mulligan

ALICE, one of the experiments at the Large Hadron Collider (CERN), is undergoing ambitious upgrades during the ongoing second long shutdown (LS2). The main goal of this project is to access rare events and previously inaccessible physics…

Instrumentation and Detectors · Physics 2020-04-23 Adam Laszlo Gera

The Time Projection Chamber of the ALICE Experiment has been installed in the experimental setup in the underground area at the Large Hadron Collider at CERN in Geneva. The Alice TPC ReadOut (ALTRO) chip implements intelligent signal…

Nuclear Experiment · Physics 2008-10-06 C. Lippmann , the ALICE TPC collaboration

The High Level Trigger (HLT) of the future ALICE heavy-ion experiment has to reduce its input data rate of up to 25 GB/s to at most 1.25 GB/s for output before the data is written to permanent storage. To cope with these data rates a large…

Distributed, Parallel, and Cluster Computing · Computer Science 2009-09-29 Timm M. Steinbeck

The ALICE experiment at LHC is mainly dedicated to heavy-ion physics. An overview of its performances, some predictions related to its first measurements and QGP observable measurements will be given.

Nuclear Experiment · Physics 2008-06-17 ALICE collaboration , A. Mastroserio

The Large Hadron Collider (LHC), the world's largest and most powerful particle accelerator, has been a pivotal tool in advancing our understanding of fundamental physics. By colliding heavy ions (such as lead ions), the LHC recreates…

The ALICE Collaboration is planning a major upgrade of its central barrel detectors to be able to cope with the increased LHC luminosity beyond 2020. In order to record at an increased interaction rate of up to 50$\,$kHz in Pb$-$Pb…

Instrumentation and Detectors · Physics 2018-03-13 Andreas Mathis

The ALICE Central Trigger Processor (CTP) is going to be upgraded for LHC Run 3 with completely new hardware and a new Trigger and Timing Control (TTC-PON) system based on a Passive Optical Network (PON) system. The new trigger system has…

Instrumentation and Detectors · Physics 2017-11-06 M. Krivda , D. Evans , K. L. Graham , A. Jusko , R. Lietava , O. Villalobos Baillie , N. Zardoshti , M. Bombara , M. Sefcik , I Kralik , L. A. Perez Moreno

ALICE is the LHC experiment devoted to the study of the Quark-Gluon Plasma (QGP). To probe this high energy density state of strongly interacting matter expected to be produced in heavy-ion collisions at high energies, measurements…

High Energy Physics - Experiment · Physics 2019-08-14 Sarah Porteboeuf-Houssais

Thanks to its unique capabilities the ALICE experiment can measure the production of identified particles and resonances over a wide momentum range both in pp and Pb-Pb collisions at the LHC. In this report, particle-identification…

High Energy Physics - Experiment · Physics 2019-08-13 Roberto Preghenella