First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged-particle pseudorapidity density at root s=900 GeV
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00435890" target="_blank" >RIV/68378271:_____/10:00435890 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/61389005:_____/10:00435890
Výsledek na webu
<a href="http://dx.doi.org/10.1140/epjc/s10052-009-1227-4" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-009-1227-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-009-1227-4" target="_blank" >10.1140/epjc/s10052-009-1227-4</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged-particle pseudorapidity density at root s=900 GeV
Popis výsledku v původním jazyce
On 23rd November 2009, during the early commissioning of the CERN Large Hadron Collider (LHC), two counter-rotating proton bunches were circulated for the first time concurrently in the machine, at the LHC injection energy of 450 GeV per beam. Although the proton intensity was very low, with only one pilot bunch per beam, and no systematic attempt was made to optimize the collision optics, all LHC experiments reported a number of collision candidates. In the ALICE experiment, the collision region was centred very well in both the longitudinal and transverse directions and 284 events were recorded in coincidence with the two passing proton bunches. The events were immediately reconstructed and analyzed both online and offline. We have used these eventsto measure the pseudorapidity density of charged primary particles in the central region.
Název v anglickém jazyce
First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged-particle pseudorapidity density at root s=900 GeV
Popis výsledku anglicky
On 23rd November 2009, during the early commissioning of the CERN Large Hadron Collider (LHC), two counter-rotating proton bunches were circulated for the first time concurrently in the machine, at the LHC injection energy of 450 GeV per beam. Although the proton intensity was very low, with only one pilot bunch per beam, and no systematic attempt was made to optimize the collision optics, all LHC experiments reported a number of collision candidates. In the ALICE experiment, the collision region was centred very well in both the longitudinal and transverse directions and 284 events were recorded in coincidence with the two passing proton bunches. The events were immediately reconstructed and analyzed both online and offline. We have used these eventsto measure the pseudorapidity density of charged primary particles in the central region.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BF - Elementární částice a fyzika vysokých energií
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/LA09013" target="_blank" >LA09013: Účast ČR v experimentu STAR v laboratoři BNL, USA</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2010
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
European Physical Journal C
ISSN
1434-6044
e-ISSN
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Svazek periodika
65
Číslo periodika v rámci svazku
1-2
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
15
Strana od-do
111-125
Kód UT WoS článku
000272912700006
EID výsledku v databázi Scopus
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