Measurement of charm production at central rapidity in proton-proton collisions at root s=2.76 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00389697" target="_blank" >RIV/68378271:_____/12:00389697 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/12:00389697

Výsledek na webu

<a href="http://download.springer.com/static/pdf/561/art%253A10.1007%252FJHEP07%25282012%2529191.pdf?auth66=1363081798_30c32ea7151d83f25d5d917cf8016196&ext=.pdf" target="_blank" >http://download.springer.com/static/pdf/561/art%253A10.1007%252FJHEP07%25282012%2529191.pdf?auth66=1363081798_30c32ea7151d83f25d5d917cf8016196&ext=.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP07(2012)191" target="_blank" >10.1007/JHEP07(2012)191</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of charm production at central rapidity in proton-proton collisions at root s=2.76 TeV

Popis výsledku v původním jazyce

The p t-differential production cross sections of the prompt (B feed-down subtracted) charmed mesons D0, D+, and D*+ in the rapidity range |y|?<?0.5, and for transverse momentum 1?<?p t? <?12 GeV/c, were measured in proton-proton collisions at s=2.76TeVwith the ALICE detector at the Large Hadron Collider. The analysis exploited the hadronic decays D0??K?+, D+??K?+?+, D*+??D0?+, and their charge conjugates, and was performed on a Lint=1.1nb1 event sample collected in 2011 with a minimum-bias trigger. The total charm production cross section at s=2.76TeV and at 7 TeV was evaluated by extrapolating to the full phase space the p t-differential production cross sections at s=2.76TeV and our previous measurements at s=7TeV . The results were compared to existing measurements and to perturbative-QCD calculations. The fraction of cd D mesons produced in a vector state was also determined.

Název v anglickém jazyce

Measurement of charm production at central rapidity in proton-proton collisions at root s=2.76 TeV

Popis výsledku anglicky

The p t-differential production cross sections of the prompt (B feed-down subtracted) charmed mesons D0, D+, and D*+ in the rapidity range |y|?<?0.5, and for transverse momentum 1?<?p t? <?12 GeV/c, were measured in proton-proton collisions at s=2.76TeVwith the ALICE detector at the Large Hadron Collider. The analysis exploited the hadronic decays D0??K?+, D+??K?+?+, D*+??D0?+, and their charge conjugates, and was performed on a Lint=1.1nb1 event sample collected in 2011 with a minimum-bias trigger. The total charm production cross section at s=2.76TeV and at 7 TeV was evaluated by extrapolating to the full phase space the p t-differential production cross sections at s=2.76TeV and our previous measurements at s=7TeV . The results were compared to existing measurements and to perturbative-QCD calculations. The fraction of cd D mesons produced in a vector state was also determined.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/LA08015" target="_blank" >LA08015: Spolupráce ČR s CERN</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

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Svazek periodika

2012

Číslo periodika v rámci svazku

July 31

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

26

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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