Precision Luminosity of LHC Proton-Proton Collisions at 13 TeVUsing Hit-Counting with TPX Pixel Devices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00336986" target="_blank" >RIV/68407700:21340/17:00336986 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21670/17:00336986

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/7842554" target="_blank" >https://ieeexplore.ieee.org/document/7842554</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TNS.2017.2664664" target="_blank" >10.1109/TNS.2017.2664664</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Precision Luminosity of LHC Proton-Proton Collisions at 13 TeVUsing Hit-Counting with TPX Pixel Devices

Popis výsledku v původním jazyce

A network of Timepix (TPX) devices installed in the ATLAS cavern measures the LHC luminosity as a function of time as a stand-alone system. The data were recorded from 13 TeV proton-proton collisions in 2015. Using two TPX devices, the number of hits created by particles passing the pixel matrices was counted. A van der Meer scan of the LHC beams was analysed using bunch-integrated luminosity averages over the different bunch profiles for an approximate absolute luminosity normalization. It is demonstrated that the TPX network has the capability to measure the reduction of LHC luminosity with precision. Comparative studies were performed among four sensors (two sensors in each TPX device) and the relative short-term precision of the luminosity measurement was determined to be 0.1% for 10s time intervals. The internal long-term time stability of the measurements was below 0.5% for the data-taking period.

Název v anglickém jazyce

Precision Luminosity of LHC Proton-Proton Collisions at 13 TeVUsing Hit-Counting with TPX Pixel Devices

Popis výsledku anglicky

A network of Timepix (TPX) devices installed in the ATLAS cavern measures the LHC luminosity as a function of time as a stand-alone system. The data were recorded from 13 TeV proton-proton collisions in 2015. Using two TPX devices, the number of hits created by particles passing the pixel matrices was counted. A van der Meer scan of the LHC beams was analysed using bunch-integrated luminosity averages over the different bunch profiles for an approximate absolute luminosity normalization. It is demonstrated that the TPX network has the capability to measure the reduction of LHC luminosity with precision. Comparative studies were performed among four sensors (two sensors in each TPX device) and the relative short-term precision of the luminosity measurement was determined to be 0.1% for 10s time intervals. The internal long-term time stability of the measurements was below 0.5% for the data-taking period.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016

ISBN

978-1-5090-1642-6

ISSN

—

e-ISSN

—

Počet stran výsledku

10

Strana od-do

915-924

Název nakladatele

Institute of Electrical and Electronics Engineers, Inc.

Místo vydání

—

Místo konání akce

Steasbourg

Datum konání akce

29. 10. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000432419500305