Timepix3 Luminosity Determination of 13-TeV Proton-Proton Collisions at the ATLAS Experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F20%3A00347545" target="_blank" >RIV/68407700:21670/20:00347545 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/TNS.2020.2966679" target="_blank" >https://doi.org/10.1109/TNS.2020.2966679</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TNS.2020.2966679" target="_blank" >10.1109/TNS.2020.2966679</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Timepix3 Luminosity Determination of 13-TeV Proton-Proton Collisions at the ATLAS Experiment

Popis výsledku v původním jazyce

Medipix and Timepix devices, installed in the ATLAS cavern, have provided valuable complementary luminosity information. Results are presented from measurements with the Timepix3 (TPX3) detectors. In contrast with previously employed frame-based data acquisition, the TPX3 detector remains active continuously, sending information on the pixel hits as they occur. The hit- and cluster-counting methods were used for the luminosity determination of the Large Hadron Collider (LHC) proton-proton collisions. The LHC luminosity versus time is determined using these two methods and fits to a simple model, which incorporates luminosity reduction from the single bunch and beam-beam interactions. The precision of the luminosity determination could be improved by counting the number of clusters, instead of just pixel hits. The internal precision and long-term stability of the TPX3 luminosity measurements are below 0.5%. TPX3, owing to its 1.56-ns time-tagging, is able to resolve the time structure of the luminosity due to the collisions of the individual proton bunches when integrated over an LHC fill.

Název v anglickém jazyce

Timepix3 Luminosity Determination of 13-TeV Proton-Proton Collisions at the ATLAS Experiment

Popis výsledku anglicky

Medipix and Timepix devices, installed in the ATLAS cavern, have provided valuable complementary luminosity information. Results are presented from measurements with the Timepix3 (TPX3) detectors. In contrast with previously employed frame-based data acquisition, the TPX3 detector remains active continuously, sending information on the pixel hits as they occur. The hit- and cluster-counting methods were used for the luminosity determination of the Large Hadron Collider (LHC) proton-proton collisions. The LHC luminosity versus time is determined using these two methods and fits to a simple model, which incorporates luminosity reduction from the single bunch and beam-beam interactions. The precision of the luminosity determination could be improved by counting the number of clusters, instead of just pixel hits. The internal precision and long-term stability of the TPX3 luminosity measurements are below 0.5%. TPX3, owing to its 1.56-ns time-tagging, is able to resolve the time structure of the luminosity due to the collisions of the individual proton bunches when integrated over an LHC fill.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EF16_013%2F0001785" target="_blank" >EF16_013/0001785: Urychlovač Van de Graaff - laditelný zdroj monoenergetických neutronů a lehkých iontů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Nuclear Science

ISSN

0018-9499

e-ISSN

1558-1578

Svazek periodika

67

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

609-616

Kód UT WoS článku

000538154200011

EID výsledku v databázi Scopus

2-s2.0-85081685002